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SUBSCRIBE The leading Copyright |
DICTIONARY OF OCCUPATIONAL TITLES (4th Ed., Rev. 1991)600.130-010 to 613.132-010
This category includes occupations concerned with the operation of
machines that cut, bore, mill, abrade, print, and similarly work such materials as metal, paper,
wood, plastics, and stone. A worker's relationship to the machine is of primary importance. The
more complicated jobs require an understanding of machine functions, blueprint reading, making
mathematical computations, and exercising judgment to attain conformance to specifications. In
less complicated jobs, eye and hand coordination may be the most significant factor. Installation,
assembly, repair, and maintenance of machines and mechanical equipment and weaving,
knitting, spinning, and similarly working textiles are included.
60 METAL MACHINING OCCUPATIONS
This division includes occupations concerned with shaping metal parts or products through the use of cutting tools, with or without removing excess material from stock or objects, primarily by such means as cutting, boring, milling, broaching, turning, sawing, abrading, and planing. Includes laying out, job setting, repairing, maintaining, calibrating, fitting, and assembling. The machining of nonmetallic materials is also included when the methods and machine tools commonly applied to the machining of metal are used. Occupations primarily concerned with the machining of clay, glass, and related materials are included in Division 67.
600 MACHINISTS AND RELATED OCCUPATIONS
This group includes occupations concerned with shaping metal parts by milling, turning, planing, abrading, boring, chipping, sawing, and shaving, using a variety of metalworking machines. Includes laying out, job setting, fitting, assembling, and repairing. The machining of nonmetallic materials, except wood, is also included when the methods and machine tools commonly applied to the machining of metal are used. Occupations primarily concerned with machine shop tools are included in Group 601 and machining gears in Group 602.
600.130-010 MACHINE-SHOP SUPERVISOR, TOOL (machine shop)
Supervises and coordinates activities of workers engaged
in custom-machining metallic and nonmetallic workpieces to produce, maintain, or repair parts
for machines, molds, and equipment, applying knowledge of machine shop procedures, variety of
machine-tool setup and operating techniques, metal and plastic properties, and custom-machining
methods. May supervise workers in related processes, such as forming, welding, inspecting,
testing, or assembling. Performs duties as described under SUPERVISOR (any industry) Master
Title.
600.131-014 SALVAGE ENGINEER (machinery mfg.)
Supervises and coordinates activities of workers engaged
in reworking rejected ball bearings: Disassembles and inspects races, faceways, cups, cones,
retainers, and bearings. Diagnoses imperfections, such as parts not within tolerance, scratches,
burrs, rust, or dirt and determines if part can be reworked or should be rejected. Assigns bearings
to assistants to be reworked, advises them on problems involving bearing salvage, and trains
workers in principles and practices of salvaging rejects. Inspects reworked bearings and
components, using special go-not-go gauges, calipers, and micrometers. May operate lathes to
turn, bore, face, and polish raceways, and perform related operations to rework bearings.
600.260-014 EXPERIMENTAL MECHANIC (motor-bicycles) alternate titles: development mechanic
Sets up and operates variety of machines to fabricate
experimental motorcycles or components to meet operating and endurance standards required by
blueprints, sketches, or oral instructions: Assembles motorcycle or components, using handtools.
Positions and clamps motorcycle on test rack. Attaches test equipment, such as tachometers,
thermocouples, pressure and strain gauges, flow and velocity meters, to motorcycles, using
handtools. Operates motorcycle at specified speeds and loads, and records meter and instrument
readings on test records form. Disassembles motorcycle and analyzes cause of defect in
components, such as exhaust system, frame, hydraulic fork, spring, or wheels, using handtools or
power tools, calipers, micrometers, gauges, and other measuring instruments. Operates drill
press, engine lathe, milling machine, or other machines to fabricate experimental motorcycle
parts for testing, and secures test equipment to motorcycle, using jigs & fixtures. Test rides
motorcycle to verify performance and durability of motorcycle components. Compiles and
submits report to engineering department to show results of tests and recommendations for
design or material changes.
600.260-018 MODEL MAKER, FIREARMS (ordnance) alternate titles: sample maker
Sets up and operates metalworking machines to cut,
shape, and fit parts to fabricate prototypes or modify existing models of small arms for use as
production models, analyzing specifications and determining procedures according to knowledge
of metal machining and layout: Lays out design of new parts on steel stock according to
blueprints and scale drawings. Determines fixtures, tooling, and sequence of machining
operations to fabricate parts. Sets up and operates metalworking machines to cut, shape, and fit
parts [MACHINIST (machine shop)]. Files, grinds, burnishes, and polishes parts to obtain
smooth movements [FILER, FINISH (ordnance)]. Verifies conformance of machined workpiece
to specifications, using sine bars, verniers, calipers, and micrometers. Records data for use of
TOOL MAKER (machine shop) and TOOL DESIGNER (profess. & kin.) in establishing
operating standards and machinery procedures. May test fire prototypic arms.
600.260-022 MACHINIST, EXPERIMENTAL (machine shop) alternate titles: prototype machinist
Sets up and operates machine tools, and fits and
assembles parts to fabricate tools, mechanisms, and machines for experimental purposes, such as
solving problems relative to materials, tools, work-holding arrangements, machine settings,
product specifications, and fabrication methods for production process, applying knowledge of
mechanics, shop mathematics, metal properties, layout, and machining procedures: Consults with
engineer and other personnel regarding product information, such as design, capacity and
purpose, and types of material to be used to fabricate product. Analyzes written specifications,
drawings, rough sketches, and verbal instructions to plan layout and determine sequence of
operations. Selects metal stock and lays out design according to dimensions computed from scale
drawings [LAY-OUT WORKER (any industry) I 809.281-010]. Designs fixtures, tooling, and
experimental parts to meet special engineering needs. Sets up and operates metalworking
machine tools, such as lathe, milling machine, shaper, or grinder to machine parts to
specifications, and verifies conformance of parts to specifications, using measuring instruments
[TOOL-MACHINE SET-UP OPERATOR (machine shop) 601.280-054]. Tests experimental
models under simulated operating conditions for such purposes as development, standardization,
and feasibility of design. Installs parts and materials, such as sheet metal covering, hydraulic
systems, electrical wiring, lubricants, and batteries into machines and mechanisms. Evaluates
experimental procedures and recommends changes or modifications for efficiency and
adaptability to setup and production. May establish work procedures for fabricating new
structural products, using variety of metalworking machines. May fabricate molds and $T3power
press$T1 dies to produce plastic parts and stamp metal parts. May perform heat-treating and
heliarc welding. May train workers in setup and operation of machine tools.
600.261-010 ASSEMBLER, STEAM-AND-GAS TURBINE (engine-turbine) alternate titles: leadman, turbine assembly
Fits and assembles machined parts and castings to erect
steam and gas turbines according to drawings and specifications, using machine tools, power
tools, handtools, and measuring instruments: Erects, levels, and aligns vertical supports for
bedplates of steam turbines, using levels, transit, and $T3master straightedge.$T1 Lays out work
for other assemblers on $T3thrust end,$T1 oil tank, and cylinder assemblies, following specified
assembly procedure. Chips, grinds, bores, and drills machined parts and castings, using portable
grinders, boring bar, and lapping disk. Levels and aligns high and low pressure cylinders, oil
tank, thrust end assembly, and exhaust assembly, using pin gauges. Scribes foundation holes,
lays out offset marks, and directs machine operator to drill foundation holes. Shrink-fits spindle
blade rings, diaphragm rings, dummy rings, ring gears, sleeves, couplings, and bushings on
shafts to build turbine spindles, using portable gas heating unit. Measures clearance and
alignment of spindle to cylinder, using micrometers and calipers. Adjusts spindle bearing pads or
moves blade rings to obtain specified clearances. Starts auxiliary oil pump to flush oil piping and
bearings. Starts turbine and measures balance of spindle, using vibroscope. Observes functioning
of unit and instruments to adjust alignment and clearances and to assure operation according to
specifications. Repairs worn and damaged turbines.
600.280-010 INSTRUMENT MAKER (any industry) alternate titles: mechanical technician; parts mechanic; precision-instrument and tool maker; precision-mechanical-instrument maker
Fabricates, modifies, or repairs mechanical instruments or
mechanical assemblies of electrical or electronic instruments, such as chronometric timing
devices, barographs, thermostats, seismographs, and servomechanisms, applying knowledge of
mechanics, metal properties, shop mathematics, and machining procedures and using machine
tools, welding and heat-treating equipment, precision measuring instruments, and handtools:
Measures, marks, and scribes stock, such as silver, nickel, platinum, steel, ivory, and plastic,
following blueprints and engineering sketches, and using square, rule, and scribe to lay out
workpiece for machining [LAY-OUT WORKER (machine shop)]. Sets up and operates machine
tools, such as lathes, drill presses, punch presses, milling machines, grinders, brakes, and
$T3lapping$T1 and polishing machines, to machine parts to specifications [MACHINIST
(machine shop)]. Anneals and tempers metal parts [HEAT TREATER (heat treating) I].
Assembles parts in jig and brazes or welds. Fits and installs precision components, such as
timing devices, springs, balance mechanisms, and gear trains, in housing, using jeweler's lathe,
tweezers, loupe, and handtools. Verifies dimensions of parts and installation of components,
using measuring instruments, such as micrometer, calipers, and electronic gauges. Coats
assembled instrument with protective finish, such as lacquer or enamel, using spray gun. May
install wiring and electrical components to specifications. May set up and operate machines to
fabricate dies for punch presses [DIE MAKER, BENCH, STAMPING (machine shop)]. May be
designated according to product assembled.
600.280-014 INSTRUMENT-MAKER AND REPAIRER (petrol. & gas)
Sets up and operates machine tools to remodel electrical
and electronic instruments used in electrical logging, gun perforating, sub-surface surveying, and
other oil, gas, or borehole prospecting, testing and servicing operations, following engineering
orders and specifications and applying knowledge of electronics, mechanics, metal properties,
shop mathematics, and machining procedures: Measures, marks, and scribes dimensions of parts
to be made on metal or plastic stock, using layout tools, such as rule, square, or scribe
[LAY-OUT WORKER (machine shop)]. Machines parts to specifications, using machine tools,
such as lathes, drill presses, and grinders [MACHINIST (machine shop)]. Assembles fabricated
mechanical parts and such purchased parts as pulleys, springs, and dials, using bolts, screws,
tweezers, wrenches, and screwdrivers [INSTRUMENT MAKER (any industry)]. Installs
electrical and electronic parts, such as sockets, switches, and rheostats, in chassis. Connects
circuit components, such as tubes, coils, and switches, using wire strippers and soldering iron
and following circuit diagrams. Tests instruments to determine conformance to specifications,
using equipment, such as voltmeters and ohmmeters. May be designated according to product
remodeled or repaired.
600.280-018 INSTRUMENT-MAKER APPRENTICE (any industry) alternate titles: precision-mechanical-instrument-maker apprentice
Performs duties as described under APPRENTICE (any
industry) Master Title.
600.280-022 MACHINIST (machine shop) alternate titles: machinist, first-class; machinist, general
Sets up and operates conventional, special-purpose, and
numerical control (NC) machines and machining centers to fabricate metallic and nonmetallic
parts, and fits and assembles machined parts into complete units, applying knowledge of machine
shop theory and procedures, shop mathematics, machinability of materials, and layout
techniques: Studies blueprints, sketches, drawings, manuals, specifications, or sample part to
determine dimensions and tolerances of finished workpiece, sequence of operations, and setup
requirements. Measures, marks, and scribes dimensions and reference points on material or
workpiece as guides for subsequent machining [LAY-OUT WORKER (machine shop)
600.281-018]. Selects, aligns, and secures holding fixtures, cutting tools, attachments,
accessories, and materials on machines, such as mills, lathes, jig borers, grinders, and shapers.
Calculates and sets controls to regulate machining factors, such as speed, feed, coolant flow, and
depth and angle of cut, or enters commands to retrieve, input, or edit computerized machine
control media. Starts and observes machine operation to detect malfunctions or out-of-tolerance
machining, and adjusts machine controls or control media as required. Verifies conformance of
finished workpiece to specifications, using precision measuring instruments. Sets up and operates
machine on trial run to verify accuracy of machine settings or programmed control data. Fits and
assembles parts into complete assembly, using jigs, fixtures, surface plate, surface table,
handtools, and power tools. Verifies dimensions and alignment of assembly, using measuring
instruments, such as micrometers, height gauges, and gauge blocks. May install machined
replacement parts in mechanisms, machines, and equipment, and test operation of unit to ensure
functionality and performance. May operate welding equipment to cut or weld parts. May
develop specifications from general description and draw sketch of part or product to be
fabricated. May confer with engineers, production personnel, programmers, or others to resolve
machining or assembly problems. May specialize in setting up and operating NC machines and
machining centers and be designated Numerical Control Machine Machinist (machine shop); or
set up and operate NC machines linked to automated storage, retrieval, and moving devices and
be designated Flexible Machining System Machinist (machine shop).
600.280-026 MACHINIST APPRENTICE (machine shop) alternate titles: machine-shop apprentice
Performs duties as described under APPRENTICE (any
industry) Master Title.
600.280-030 MACHINIST APPRENTICE, AUTOMOTIVE (automotive ser.)
Performs duties as described under APPRENTICE (any
industry) Master Title.
600.280-034 MACHINIST, AUTOMOTIVE (automotive ser.)
Sets up and operates variety of general or specialized
metalworking machines to repair automotive engine parts or auxiliary units, such as
transmission, differential, springs, or brakes, applying knowledge of mechanics, shop
mathematics, metal properties, and machine procedures: Operates lathe to machine water-pump
castings, piston heads, valves, and other automotive parts. Clamps piston in carriage of
piston-grinding-and-turning machine to grind piston heads to fit cylinders. Adjusts grinding
wheel to make cut of specified depth. Clamps valves in position on grinding wheel to grind
seating surfaces of valves, moving levers to achieve required depth of cut. Operates boring
machine to machine internal surfaces of cylinders in engine block. Cleans parts, before and after
machining, in agitator-type cleaning tank to remove grease, rust stains, and foreign matters.
Operates lathe, boring, or honing machine to refinish internal surfaces of bearings and connecting
rods. Verifies dimensions, using measuring instruments, such as micrometers, calipers, and
height gauges to ensure adherence to tolerance specifications. May grind metal surfaces of
engine block or other parts, using portable or $T3bench grinders.$T1 May spray worn or gouges
parts with molten aluminum, zinc, or other metal to build up parts [METAL SPRAYER,
MACHINED PARTS (any industry)]. May examine parts for fractures, using magnaflux test
equipment. May repair cracks in engine head and other vehicle parts with arc or gas welding
equipment. May operate drum lathe to resurface brake drums. May repair and resurface leaf and
coil springs, axles, king pins, bushings, and universal joints.
600.280-042 MAINTENANCE MACHINIST (machine shop) alternate titles: machine repairer; machinist, general maintenance; shop mechanic
Sets up and operates variety of machine tools, and fits
and assembles parts to fabricate or repair machine tools and maintain industrial machines,
applying knowledge of mechanics, shop mathematics, metal properties, layout, and machining
procedures: Observes and listens to operating machines or equipment to diagnose machine
malfunction and determine need for adjustment or repair. Studies blueprints, sketches, machine
parts or specifications to determine type and dimensions of metal stock required. Measures,
marks, and scribes dimensions and reference points on metal stock surfaces, using such
measuring and marking devices as calibrated ruler, micrometer, caliper, and scriber [LAY-OUT
WORKER (machine shop) 600.281-018]. Dismantles machine or equipment, using handtools or
power tools, to examine parts for defect or to remove defective part. Replaces defective part with
new part or repairs or reproduces part from various kinds of metal stock, using handtools, such as
scraper, file, and drill, and machine tools, such as lathe, milling machine, shaper, borer, and
grinder [MACHINIST (machine shop) 600.280-022]. Assembles and test operates machine to
verify correction of malfunction. Maintains and lubricates machine tools and equipment. May
weld parts, using arc or gas welding equipment. May repair or replace faulty wiring, switches, or
relays.
600.280-046 PATTERNMAKER APPRENTICE, METAL (foundry)
Performs duties as described under APPRENTICE (any
industry) Master Title.
600.280-050 PATTERNMAKER, METAL (foundry)
Lays out, mills, drills, turns, grinds, fits, and assembles
castings and parts to make metal foundry patterns, core boxes, and match plates, using handtools
and machine tools, and analyzing specifications, according to knowledge of patternmaking
methods: Studies blueprint of part to be cast, computes dimensions, and plans sequence of
operations. Measures, marks, and scribes layout on castings [LAY-OUT WORKER (machine
shop)]. Sets up and operates machine tools, such as milling machines, lathes, drill presses, and
grinders, to machine castings to specifications [TOOL-MACHINE SET-UP OPERATOR
(machine shop)]. Assembles pattern, using handtools, and bolts, screws, or other fasteners.
Cleans and hand finishes workpiece, using emery cloth, files, scrapers, and powered hand
grinders. Verifies conformance of machined pattern to blueprint specifications, using templates
and measuring instruments, such as scale, calipers, and micrometers. May make templates for
layout and inspection [TEMPLATE MAKER (any industry)]. May operate welding equipment in
assembling pattern [WELDER, COMBINATION (welding)].
600.280-054 SAMPLE MAKER, APPLIANCES (house. appl.; light. fix.) alternate titles: model maker
Sets up and operates machines to construct complete
working models of new or redesigned household electrical appliances, such as fans, heaters, and
hair driers: Lays out and fabricates metal and plastic parts, using handtools and machine tools.
Devises and constructs own tools, dies, molds, jigs, and fixtures, or modifies existing tools and
equipment [TOOL-AND-DIE MAKER (machine shop)]. Assembles mechanical and electrical
parts, and installs wiring circuits.
600.281-010 FLUID-POWER MECHANIC (any industry)
Fabricates, assembles, services, maintains, repairs, and
tests fluid power equipment, such as power steering units, and components, following blueprints,
schematics, or drawings, using handtools, power tools, and testing devices and applying
knowledge of hydraulic, pneumatic, and electrical principles: Analyzes blueprints, schematics,
diagrams, and drawings to determine fabrication specifications. Sets up and operates milling
machines, lathes, shapers, grinders, drill presses, and welders to make precision parts. Verifies
conformance to specifications, using instruments, such as micrometers, verniers, and calipers.
Assembles fluid power components, such as pumps, cylinders, valves, reservoirs, motors,
accumulators, filters, and controls, using handtools and holding devices. Connects unit to test
equipment, and analyzes and records data, such as fluid pressure, flow measure, and power loss
due to friction and parts wear. Recommends modifications in unit and in test procedures,
instrumentation, or setup, based on analysis of test results.
600.281-014 LAY-OUT INSPECTOR (machine shop) alternate titles: inspector, rough castings; lay-out worker
Inspects castings, forgings, or wax patterns of castings for
conformance to blueprints by laying out reference lines and points, and measuring dimensions,
using surface plate, precision measuring instruments, and layout procedures: Analyzes blueprint
and examines casting to determine reference points for layout. Applies blue pigment or
whitewash to layout surface on casting, using rag or brush. Positions casting on surface plate,
using parallel bars, angle plates, dial indicator, gauge blocks, V-blocks, shims, and vernier height
gauge, to establish reference points for measuring. Computes layout dimensions relative to
reference points, using shop mathematics. Marks and scribes reference lines and points on
casting and measures dimensions, using instruments, such as micrometer, protractor,
combination square, vernier height gauge, and $T3layout machine.$T1 Records location and
extent of defect in rejected casting. May inspect metal equipment used in production of casting to
determine source of error.
600.281-018 LAY-OUT WORKER (machine shop)
Lays out metal stock or workpieces, such as castings,
plates, or machine parts, to indicate location, dimensions, and tolerances necessary for further
processing, such as machining, welding, or assembly, analyzing specifications and computing
dimensions according to knowledge of product, subsequent processing, shop mathematics, and
layout procedures: Studies blueprint, sketch, model, or other specifications and plans layout.
Examines workpiece and verifies such requirements as dimensions and squareness, using rule,
square, and straightedge. Lifts and positions workpiece in relation to surface plate manually or
with hoist, using such work aids as shims, parallel blocks, and angle plates. Verifies position
with measuring instruments, such as gauge blocks, height gauges, and dial indicators.
Determines reference points and computes layout dimensions. Sets indicators on height gauge,
protractor, or $T3layout machine$T1 to computed dimensions, or projects dimensions by setting
indicators to specified locations on model and moving instrument or machine so that indicators
bear on corresponding locations on workpiece. Indents layout points, using prick punch, center
punch, and hammer. Marks or scribes layout lines, using handtools and work aids, such as
surface gauge, straightedge, compasses, templates, and scriber. Marks such data as dimensions,
instructions, and part identification on workpiece. Works to tolerances as close as plus 0.001
inch. May position model in parallel relationship to workpiece. May apply pigment to layout
surfaces, using paint brush. May inspect machined parts to verify conformance to specifications.
May add dimensional details to blueprints or prepare dimensional drawings to be followed by
other workers. May layout sheet metal or plate steel, applying specialized knowledge of sheet
metal layout geometry [SHEET-METAL LAY-OUT WORKER (any industry)].
600.281-022 MACHINE BUILDER (machinery mfg.; machine tools) alternate titles: assembler, special machine; bench hand; fitter; machinist, bench; vise hand
Fits and assembles components according to assembly
blueprints, manuals, engineering memos, sketches, and knowledge of machine construction to
construct, rebuild, and repair machines and equipment, using handtools and power tools:
Analyzes assembly blueprint and specifications manual, and plans machine building operations.
Verifies conformance of parts to stock list and blueprints, using measuring instruments, such as
calipers, gauges, and micrometers. Lays out hole locations and drills and taps holes on parts for
assembly. Aligns components for assembly, manually or with hoist, and bolts, screws, dowels,
welds, or rivets parts together, using handtools, rivet gun, and welding equipment, or arranges for
assembly by welder and electrician. Brushes blue pigment on parts and mates them to detect high
spots on surfaces. Removes high spots, and smooths surfaces, using chisels, scrapers, files, and
powered hand grinder [SCRAPER, HAND (machine shop)]. Verifies alignment and tolerances of
moving parts, using measuring instruments, such as dial indicators and thickness gauges. Tests
operation of assembly by hand. Assembles, sets up, and operates machine to verify functioning,
machine capabilities, and conformance to customer's specifications. May form and fasten piping,
fixtures, and attachments required to service machine with air, water, and oil. May install wiring
and electrical components to specifications. May work as member of team on limited part of
fabrication process. May set up and operate metalworking machines to shape parts
[TOOL-MACHINE SET-UP OPERATOR (machine shop)]. May be designated according to
type of machine or machine component as Fixture Builder (machinery mfg.).
600.360-010 MACHINE TRY-OUT SETTER (machine tools) alternate titles: detail maker and fitter
Sets up prototype metalworking machines, such as lathe,
milling machine, or forging press to verify conformance to operating specifications, according to
knowledge of inspection and machining techniques, tools and processes: Examines electrical
components, such as electrical timers, relays, and switches, to ensure adequate functioning of
automatic cycles. Compares rotary table $T3indexing,$T1 when present, to specifications.
Inspects fixture alignment, machine table movement, and position of cutting tools, using
instruments, such as dial indicators, height setting devices and gauges. Installs dies or tool
holders and tools, following blueprints, and using handtools and measuring instruments. Sets
controls to regulate speed of feed, depth of cut, or length of ram stroke, according to type of
machine being tested. Operates machine to obtain sample workpiece. Verifies conformance of
workpiece to specifications, using measuring instruments, such as calipers, micrometers, and
gauges. Determines cause of malfunction from inspection data. Repairs electrical and mechanical
components and reports electronic malfunction to supervisor. Records operational data, such as
pressure readings, length of stroke, feeds, and speeds, for customer use. May demonstrate setup
and operation for customer personnel. May be designated according to type of machine as
Honing-Machine Try-Out Setter (machine tools).
600.360-014 MACHINE SETTER (machine shop) alternate titles: machinist, job setter
Sets up and adjusts machine tools, such as lathes, milling
machines, boring machines, drills and punch presses, grinders, gear hobbers, and plastic molding
machines for other workers, such as PRODUCTION-MACHINE TENDERS (machine shop)
609.685-018, according to specifications and tooling instructions, applying knowledge of
machining methods: Reads blueprint or job order for product specifications, such as dimensions
and tolerances, and tooling instructions, such as feed rate, cutting speed, depth of cut, fixtures,
and cutting tools to be used. Installs and adjusts holding device and fastens specified cutting and
shaping tools in position to enable operator to produce finished workpiece to specifications,
using handtools, such as wrenches, screwdrivers, and pliers. Selects and sets speed and feed of
machine according to type of operation and specified material and finish. Starts machine to
obtain first-run workpiece and verifies dimensional tolerances, using micrometers, gauges, and
templates. Changes worn cutting tools and adjusts operation of machine, such as cutting speed,
feed rate, or depth of cut, when required. May replace parts on machines, such as bearings,
filters, wiring, and switches, using handtools. May instruct operators or other workers in machine
setup and operation. May set up machines and equipment other than machine tools, such as
welding machine and flame cutting equipment.
600.380-010 FIXTURE MAKER (light. fix.)
Sets up and operates metal-working machines to machine
workpieces, and fabricate electrical lighting fixture prototypes, such as floor and wall lamps and
hanging fixtures, according to specifications: Examines drawings or blueprints to ascertain
number and finished dimensions of parts required. Sets up and operates lathes to spin
[SPINNER, HYDRAULIC (any industry)] or turn [ENGINE-LATHE SET-UP OPERATOR
(machine shop)] ferrous or nonferrous metal, according to specifications. Cuts and shapes sheet
metal [MACHINE OPERATOR (any industry) I 616.380-018]. Heats and bends metal to shape
fixture parts [ORNAMENTAL-METAL WORKER (metal prod., nec)]. Verifies conformance of
parts to specification, using rule, micrometer, square, and protractor. Solders, brazes, and welds
parts, using welding and brazing equipment. Attaches glass parts, sockets, and wires to metal
parts to form fixture, using handtools. May be designated according to type of fixture fabricated
as Chandelier Maker (light. fix.).
600.380-018 MACHINE SET-UP OPERATOR (machine shop) alternate titles: machine operator, all around; machine operator, general; machine specialist; machinist
Sets up and operates machine tools, such as lathes,
milling machines, boring machines, and grinders, to machine metallic and nonmetallic
workpieces according to specifications, tooling instructions, and standard charts, applying
knowledge of machining methods: Reads blueprint or job order for product specifications, such
as dimensions and tolerances, and tooling instructions, such as fixtures, feed rates, cutting
speeds, depth of cut, and determines sequence of operations. Selects, positions, and secures tool
in toolholder (chuck, collet, or toolpost). Positions and secures workpiece in holding device,
machine table, chuck, centers, or fixtures, using clamps and wrenches. Moves controls to
position tool and workpiece in relation to each other, and to set specified feeds, speeds, and depth
of cut. Sets up fixture or feeding device, starts machine, and turns handwheel to feed tool to
workpiece or vice versa, and engages feed. Turns valve handle to direct flow of coolant or
cutting oil against tool and workpiece. Observes operation of machine and verifies conformance
of machined workpiece to specifications, using measuring instruments, such as fixed gauges,
calipers, and micrometers. Operates bench grinder to sharpen tools. May set up and operate
machines and equipment other than machine tools, such as welding machines and flame-cutting
equipment.
600.380-022 MACHINE SETTER (clock & watch)
Sets up variety of metalworking machines to cut, drill,
bore, abrade, mill, and assemble clock, watch, and timer parts, according to specifications and
tooling instructions, applying knowledge of metal machining methods: Confers with supervisor
and studies blueprints and operation sheet to determine parts or assemblies to be processed.
Installs dies, holding devices, and tools, such as cams, gears, chucks, cutters, and drills, using
handtools. Operates machine to fabricate sample parts or assemblies and verifies conformance of
workpiece to specifications visually and using gauges, such as micrometer, go-not-go, and
calipers. Demonstrates operation of machine to workers. Observes machine operation for
malfunctions, and notifies supervisor when machine repair or overhaul is required. Adjusts and
makes minor machine repairs as required. May repair cams. May teach new operators to operate
machine and maintain setup. May tend machines to meet production demands. May operate
semiautomatic or hand operated machine to produce low production or experimental parts. May
be designated according to type of machine set up as Machine Setter, Automatic (clock &
watch); Machine Setter, Hand (clock & watch); Machine Setter, Semiautomatic (clock & watch).
Important variables may be designated by brand name of machine used.
600.380-026 TURBINE-BLADE ASSEMBLER (engine-turbine)
Fabricates blade structure of steam and gas turbines
according to specifications and drawings, using machine tools, handtools, and measuring
devices: Positions blades on bench to form sections, or positions and secures disk on positioner.
Measures tenon location on blades with dial indicator and selects two blades with equal tenons
for end blades of section. Sets up and operates milling machines and pedestal grinders to grind
and mill blade roots to obtain specified section lengths, radial alignment, and root contact. Inserts
blades into grooves of spindle, cylinder, or fixture (for section blading) and pounds metal
caulking into groove to tighten blades. Operates grinders and metal saw to shape cylinder blade
locking device, spindle filler pieces, and wedges from metal stock. Fits locking device to pocket
of blade and smooths surfaces, using chalk, files, and abrasive paper. Drills, reams, and taps
locking items, such as cylinder locks, spindle filler pieces, seals, and wedges, using drill press,
and fastens them to blade by peening or inserting setscrew. Fits shroud over blade ends and
peens blade tenon to round edges of rivets, using hammer and capping tool or pneumatic
hammer. Measures head of rivet for specified clearance, using measuring tool. Grinds shroud end
of each blade section to obtain specified clearance between shrouds, using pedestal grinder. May
roll, cut, and chamfer shroud.
601 TOOLMAKERS AND RELATED OCCUPATIONS
This group includes occupations concerned with the entire scope of constructing, repairing, maintaining, and calibrating machine-shop tools, jigs, fixtures, instruments, and metal-forming dies.
601.130-010 TOOL-AND-DIE SUPERVISOR (machine shop)
Supervises and coordinates activities of workers engaged
in production and repair of metalworking dies, jigs, fixtures, gauges, and cutting tools, applying
knowledge of machining and tool and die construction. Performs other duties as described under
SUPERVISOR (any industry) Master Title.
601.260-010 TOOL-AND-DIE MAKER (machine shop)
Analyzes specifications, lays out metal stock, sets up and
operates machine tools, and fits and assembles parts to fabricate and repair metalworking dies,
cutting tools, jigs and fixtures, gauges, and machinists' handtools, applying knowledge of tool
and die design and construction, shop mathematics, metal properties, and layout, machining, and
assembly procedures: Studies specifications, such as blueprints, sketches, models, or
descriptions, and visualizes product to determine materials required and machines to be used to
fabricate parts. Computes dimensions, plans layout, and determines assembly method and
sequence of operations. Measures, marks, and scribes metal stock for machining [LAY-OUT
WORKER (machine shop) 600.281-018]. Sets up and operates machine tools, such as lathes,
milling machine, shaper, and grinder, to machine parts, and verifies conformance of machined
parts to specifications [TOOL-MACHINE SET-UP OPERATOR (machine shop) 601.280-054].
Lifts machined parts manually or using hoist, and positions and secures parts on surface plate or
worktable, using devices, such as vises, V-blocks, and angle plates. Smooths flat and contoured
surfaces, using scrapers, abrasive stones, and power grinders, and fits and assembles parts
together and into assemblies and mechanisms, using handtools. Verifies dimensions, alignments,
and clearances, using measuring instruments, such as dial indicators, gauge blocks, thickness
gauges, and micrometers. Heat-treats tools or parts [HEAT TREATER (heat treating) II
504.682-018]. May connect wiring and hydraulic lines to install electrical and hydraulic
components. May examine standard or previously used dies, tools, and jigs and fixtures, and
recommend design modifications regarding construction and function of part. May develop
specifications from general descriptions for specialty tools and draw or sketch design of product.
May specialize in repair work and be designated Tool-And-Die Repairer (machine shop).
601.260-014 TOOL-AND-DIE-MAKER APPRENTICE (machine shop)
Performs duties as described under APPRENTICE (any
industry) Master Title.
601.261-010 INSPECTOR, SET-UP AND LAY-OUT (machine shop)
Develops gauging setup and surface plate layout
procedures, draws patterns and templates, and inspects variety of parts and tools, to provide
inspection devices and fixtures for use in machining or assembly, using blueprints, formulas,
trigonometry, and precision measuring instruments: Analyzes inspection problem by comparing
part with blueprints or sketches, and devises procedures necessary to measure specified
dimensions. Lays out part on surface plate or positions in gauging setup to verify dimensions,
using master gauges, $T3indexing$T1 head, gauge blocks, comparators, verniers, micrometers,
and indicators. Develops and draws patterns and templates used to measure curves and angles.
Tests surface finish of machined parts, using profilameter. Tests hardness of metal parts
[HARDNESS INSPECTOR (heat treating)]. Analyzes defective parts to determine reasons for
dimensional variations, such as faulty machining, or assembly procedures, setup, tools, or
fixtures. Recommends corrective procedures to design, methods, process, or production
engineering departments. Inspects machining or assembly fixtures, tools, or gauges, and suggests
replacement or use of new equipment. May approve parts not within specified dimension
tolerances. May change allowable tolerances specified on blueprint.
601.280-010 DIE MAKER, STAMPING (machine shop) alternate titles: body-die maker
Lays out, machines, fits, assembles, and finishes metal
castings and parts to make and repair stamping dies, analyzing specifications and applying
knowledge of die design and construction: Studies blueprints of product and die, prototype
products, and die models. Visualizes structure and function of die and plans operations, applying
knowledge of shop mathematics, machining and assembly methods, properties of sheet metal
under pressure, and metal-forming presses. Measures, marks, and scribes castings and stock for
machining. Sets up and operates machine tools, such as lathe, milling machine, $T3radial drill
press,$T1 shaper, and grinder, to machine parts to specifications, and verifies conformance of
machined parts to specifications [TOOL-MACHINE SET-UP OPERATOR (machine shop)].
Lifts machined parts manually or using hoist, and positions them on worktable or surface plate
for assembly. Shapes, smooths, and fits flat and contoured surfaces of die members and parts,
using handtools, such as stones, files, and powered grinders [DIE FINISHER (machine shop)].
Verifies dimensions, clearances, and alignment of members and parts in die, using dial
indicators, gauge blocks, thickness gauges, and micrometers. Dowels and bolts parts together,
using handtools, such as hammers and wrenches. Connects wiring and hydraulic lines to install
electric and hydraulic components. Fits and assembles components for mechanical action within
die. May operate power press, perform final shaping and smoothing operations on die in press,
and inspect sheet metal product, to complete tryout of die [DIE-TRY-OUT WORKER,
STAMPING (machine shop)]. May only repair dies and be designated Die Repairer, Stamping
(machine shop).
601.280-014 DIE MAKER, TRIM (machine shop) alternate titles: trim die maker; trimmer maker
Lays out, machines, assembles, and finishes metal stock
to make dies that trim excess metal $T3flash$T1 from forged metal parts, following blueprints
and applying knowledge of die design and construction, shop mathematics, and metal properties:
Analyzes blueprint of part or die and plans sequence of operations. Measures and scribes metal
stock to layout design of die. Sets up and operates variety of machine tools, such as shaper,
vertical turret lathe, and engine lathe to machine die parts [TOOL-MACHINE SET-UP
OPERATOR (machine shop)]. Bolts and dowels die parts to assemble die, using handtools, such
as power grinder, scrapers, files, and emery cloth to fit die parts and to obtain specified
dimensions and contours. Inspects assembled die with sample part and measuring instruments,
such as calipers, micrometers, and height gauges to verify conformance to specifications. May
make dies containing mechanical or hydraulic components. May make dies that trim flash
diecastings. May make templates to verify dimensions [TEMPLATE MAKER, EXTRUSION
DIE (machine shop)]. May make tools to form die parts [TOOL MAKER (machine shop)]. May
repair dies and be designated Die Repairer, Trimmer Dies (machine shop).
601.280-018 DIE MAKER, WIRE DRAWING (machine shop)
Lays out, machines, and finishes metal, carbide, and
diamond parts to make and repair wiredrawing dies, analyzing specifications and applying
knowledge of metal properties, shop mathematics, and wiredrawing die construction: Studies
specifications, such as blueprints, sketches, and standard charts, and visualizes shape of die.
Computes die dimensions and plans sequence of operations. Measures, marks, and scribes metal
stock to lay out for machining [LAY-OUT WORKER (machine shop)]. Sets up and operates
machine tools, such as lathes, milling machines, and grinders, to machine die parts
[TOOL-MACHINE SET-UP OPERATOR (machine shop)]. Polishes die bores by
$T3lapping$T1 manually or using die-finishing machines, applying progressively finer grades of
diamond dust compound. Inspects die for defects, such as cracks and scratches, using loupe or
microscope. Pulls wire or rod through die bore manually or using wiredrawing machine.
Measures wire or rod, using measuring instruments such as micrometer, vernier gauge, or
protractor, to verify conformance of die bore to specifications. May design and make tools, jigs,
and fixtures. May be designated according to type of die made or repaired as Carbide-Die Maker
(machine shop); Diamond-Die Maker (machine shop).
601.280-022 DIE SINKER (machine shop) alternate titles: forging-die sinker
Lays out, machines, and finishes impression cavities in
die blocks to produce forging dies, following blueprints and applying knowledge of diesinking:
Analyzes blueprint of part or die and plans sequence of operations. Measures and marks die
block to lay out designs of cavities. Sets up and operates variety of machine tools, such as shaper,
vertical turret lathe, and engine lathe to machine cavities in die block [TOOL-MACHINE
SET-UP OPERATOR (machine shop)]. Obtains specified dimensions, contours, and finish of die
cavities, using tools, such as power grinder, scrapers, files, and emery cloth. Inspects die cavities,
using templates and measuring instruments, such as calipers, micrometers, and height gauges to
verify conformance to specifications. May develop die design from blueprint of part, using
knowledge of machining and forging processes. May make templates to verify dimensions of
cavities [TEMPLATE MAKER, EXTRUSION DIE (machine shop)]. May make and inspect
sample lead or plaster cast of part to verify fit of die members and basic shape of part. May repair
forging dies and be designated Die Repairer, Forging (machine shop). May set up and operate
machines to plane surfaces and edges of forging dies and be known as Edger Machine Setter
(machine shop).
601.280-030 MOLD MAKER, DIE-CASTING AND PLASTIC MOLDING (machine shop) alternate titles: die-cast-die maker; mold maker, plastic molds
Lays out, machines, fits, assembles, and finishes metal
parts to make and repair dies for diecasting of metal products and metal molds for injection or
compression molding of plastic or glass products, analyzing specifications, and applying
knowledge of die and mold design and construction: Studies blueprints of product and die or
mold, and computes specifications, applying knowledge of shop mathematics and metal
diecasting or plastic or glass molding processes and machinery. Plans sequence of operations,
visualizing shape of die or mold in reverse of product. Measures, marks, and scribes metal stock
to lay out for machining [LAY-OUT WORKER (machine shop)]. Gives machining
specifications to TOOL-MACHINE SET-UP OPERATORS (machine shop) or sets up and
operates machines, such as horizontal boring mill, engine lathe, profile milling machine, and
pantograph machine to machine outer dimensions and contoured cavity of die or mold
[TOOL-MACHINE SET-UP OPERATOR (machine shop); PANTOGRAPH-MACHINE
SET-UP OPERATOR (machine shop)]. Grinds, files, and sands parts, using files, emery cloth,
and powered grinders, to fit parts for assembly and to smooth and finish cavity. Assembles die or
mold, using handtools. Verifies dimensions, using calipers, $T3planer gauges,$T1 and dial
indicators. May repair molds and be designated Mold Repairer, Die-Casting And Plastic Molding
(machine shop).
601.280-034 TAP-AND-DIE-MAKER TECHNICIAN (clock & watch)
Sets up and operates machines, such as watchmaker's
lathe, bench miller, and tap grinder to make taps and dies used in manufacture of watch screws
and taps: Makes master taps following blueprints and working to pitch (thread) tolerance of
0.00002 inch and outside diameter tolerance of 0.0001 inch. Threads master dies, using master
taps. Makes working taps and dies from master taps and dies, using variety of semiautomatic
machine tools. Laps, mills, spots, etches, drills, and taps die blanks, using variety of abrasives,
bench machines, and precision gauges. Anneals and hardens dies, utilizing knowledge of
heat-treating operations.
601.280-038 TEMPLATE MAKER, EXTRUSION DIE (machine shop)
Lays out sheet or plate steel, and sets up and operates
machine tools to make templates (replicas of cross sections of products to be extruded) used in
manufacture of extrusion dies: Analyzes blueprints to determine product specifications and plans
operations, applying knowledge of template making, extrusion of nonferrous metals, shop
mathematics and sheet metalwork. Applies copper sulfate solution to surface of steel plate, using
cloth or brush. Computes dimensions, and measures and scribes outline of product cross section
on steel. Saws, files, and operates drill press, arbor press, band-sawing machine, filing machine,
and vertical milling machine to drill, saw, shape, and smooth workpiece to layout lines
[TOOL-MACHINE SET-UP OPERATOR (machine shop)]. Verifies conformance of template to
specifications, using measuring instruments, such as micrometers, calipers, and protractors. May
operate bench grinder to grind standard files to shape for particular operation.
601.280-042 TOOL MAKER (machine shop)
Analyzes variety of specifications, lays out metal stock,
sets up and operates machine tools, and fits and assembles parts to fabricate or repair cutting
tools, jigs, fixtures, gauges, or machinists' handtools, applying knowledge of tool design, shop
mathematics, metal properties, and layout, machining, and assembly procedures: Studies
specifications, such as blueprints, sketches, or tool description, and plans sequence of operations.
Measures, marks, and scribes metal stock to lay out workpieces for machining [LAY-OUT
WORKER (machine shop) 600.281-018]. Sets up and operates machine tools, such as lathe,
milling machine, shaper, and grinder, to machine parts to specifications, and verifies
conformance of machined parts to specifications [TOOL-MACHINE SET-UP OPERATOR
(machine shop) 601.280-054]. Positions and secures parts on surface plate or worktable, using
devices such as vises, V-blocks, and angle plates. Fits and assembles parts into assemblies or
mechanisms, using handtools. Verifies dimensions and alignment, using measuring instruments
such as micrometers, height gauges, and gauge blocks. Examines standard tools and modifies
tools as required. Develops specifications from general descriptions and draws or sketches tool to
be fabricated, using drafting tools or computer and software programs. May heattreat tools or
parts [HEAT TREATER (heat treating) II 504.682-018]. May be designated according to special
materials used as Carbide-Tool Maker (clock & watch); Diamond-Tool Maker (clock & watch).
May only repair tools and be designated Tool Repairer (machine shop).
601.280-054 TOOL-MACHINE SET-UP OPERATOR (machine shop) alternate titles: machine-tool operator, general; machinist; set-up-operator, tool
Sets up and operates variety of machine tools, such as
$T3radial drill press,$T1 lathes, milling machines, shapers, and grinders, to machine metal
workpieces, such as patterns and machine, tool, or die parts, usually on custom basis. Analyzes
specifications and determines tooling, applying knowledge of metal properties, machining, and
shop mathematics: Studies blueprint or layout on workpiece to visualize machining required, and
plans sequence of operations. Selects method of holding workpiece. Lifts workpiece manually or
using hoist, and positions and secures it to holding device, such as machine table, chuck, centers,
or fixture, using wrenches and aids, such as shims, parallel blocks, planter gauges, and clamps.
Verifies workpiece position, using instruments, such as surface gauges, height gauges, and dial
indicator. Selects feed rate, cutting speed, depth of cut, and cutting tool (bar tool, rotary cutter, or
abrasive wheel) for each operation, according to knowledge of metal properties, machining, and
shop mathematics. Positions and secures tool in toolholder (chuck, collet, or toolpost). Moves
controls to position tool and workpiece in relation to each other, and to set feeds, speeds, and
depth of cut. Starts machine, turns handwheel to feed tool in workpiece or vice versa, and
engages automatic feeding device. Turns valve handle to start flow of coolant against tool and
workpiece. Observes operation and regulates tool position and action. Verifies conformance of
machined workpiece to specifications, using instruments, such as micrometers, gauges, and
gauge blocks. May measure, mark, and scribe workpiece to lay out for machining [LAY-OUT
WORKER (machine shop) 600.281-018]. May devise ways of clamping workpieces and make
special jigs and fixtures as needed. May work on nonmetallic materials. May operate bench
grinder or cutter grinding machine to sharpen tools [TOOL-GRINDER OPERATOR (machine
shop) 603.280-038].
601.280-058 TOOL-MAKER APPRENTICE (machine shop)
Performs duties as described under APPRENTICE (any
industry) Master Title.
601.281-010 DIE MAKER, BENCH, STAMPING (machine shop) alternate titles: bench die maker; die maker; stamping-die maker, bench
Lays out, fits, and assembles castings and metal parts to
make and repair stamping dies, analyzing specifications according to knowledge of shop
mathematics, die construction, and properties of sheet metal under pressure: Studies blueprints of
die and product, die models, templates, and prototype parts and visualizes shape, mechanical
structure, and operation of die. Computes dimensions, plans machining, layout, and assembly
operations. Measures, marks, and scribes metal stock for machining by other workers. Operates
drill press to drill and tap holes in parts for assembly. Lifts machined parts manually or with
hoist, and positions them for assembly on worktable or surface plate. Smooths flat and contoured
surfaces and fits parts to each other, using handtools, such as abrasive stones, files, and power
grinder. Verifies dimensions, alignments, and clearances, using dial indicators, gauge blocks,
thickness gauges, and micrometers. Dowels and bolts parts together, using handtools, such as
hammers and wrenches. Works to tolerances as close as 0.0005 inch. May fit and assemble
cam-operated mechanisms for lateral movement of part of die. May connect wiring and hydraulic
lines to install electric and hydraulic components. May dismantle die and repair or replace parts.
May make multistation $T3progressive dies$T1 and be designated Progressive-Die Maker
(machine shop).
601.281-014 DIE-TRY-OUT WORKER, STAMPING (machine shop)
Tests, shapes, and smooths stamping die, using tryout
power press and abrading handtools, until die members impart specified characteristics to sheet
metal product: Studies blueprint of die and model of part, applying knowledge of die
construction and flowing properties of metal under pressure. Installs die in press. Applies blue
pigment to one die member and orange to other, and intermittently operates press through part of
cycle to press die members together. Observes pigment markings to locate high spots. Secures
press, using blocks, to prevent premature closing, climbs into open press, and uses powered hand
grinder and handtools, such as scrapers, files, and abrasive stones, to remove high spots and
shape and smooth die surface to conform to other die member. Adjusts press to allow for
thickness of sheet metal workpiece and inserts model part. Repeatedly operates press. Observes
markings on model part, and performs shaping and smoothing operations accordingly. Inserts
sheet metal blank, operates press, and inspects and compares stamped workpiece with model part
and customer's specifications, using measuring devices and checking fixture. May operate power
shear to cut blank [SHEAR OPERATOR (any industry) II]. May consult with superiors and other
workers to solve metal forming problems.
601.281-018 INSPECTOR, GAUGE AND INSTRUMENT (machine shop) alternate titles: gauge checker
Inspects and adjusts gauges, measuring instruments, and
testing equipment for conformance to blueprint specifications: Verifies accuracy of gauges and
measuring instruments, such as dial indicators, fixed gauges, height gauges, and electrical and
functional gauges, using master gauges or master parts. Examines gauges or measuring
instruments for wear or adjustment. Disassembles inaccurate or worn gauges and measuring
instruments with handtools. Inspects parts for wear, warping, or other defects. Verifies
dimensions of parts against blueprint specifications, using gauge blocks, micrometer, vernier
height gauge, sine bar, bevel protractor, and optical comparator. Measures surface flatness and
finish, using optical flats and profilameter. Computes unspecified dimensions and other data,
using shop mathematics and trigonometry. Laps corroded or pitted surfaces. Reassembles gauge
and adjusts stops and levers to specified settings. Inspects accuracy of new gauges and
instruments for conformance to blueprint specifications before they are released for production
use.
601.281-022 INSPECTOR, TOOL (machine shop) alternate titles: precision inspector; surface-plate inspector; tool-and-die inspector; tool-and-gauge inspector; tooling inspector
Inspects, tests, and adjusts new and reworked tools, dies,
gauges, jigs, and fixtures, for conformance to specifications, such as dimensions, tolerances, and
hardness, applying knowledge of tool and die design, shop mathematics, and machining and
testing procedures, using precision measuring instruments, testing equipment, and handtools:
Computes angles, radii, and other unspecified dimensions of workpiece, using algebra, geometry,
and trigonometry. Positions workpiece on surface plate and lays out reference points and center
lines on parts [LAY-OUT WORKER (machine shop) 600.281-018]. Measures angular
dimensions, radii, contours, clearances, thread lead, and other specifications, using precision
measuring instruments, such as micrometer, gauge blocks, dial indicators, height gauges, level
protractors, and optical comparators. Tests units for fit of moving parts and mechanical
functioning. Tests parts for hardness, using hardness testing equipment [HARDNESS
INSPECTOR (heat treating) 504.387-010]. Inspects, adjusts, and verifies accuracy of gauges and
measuring instruments for conformance to specifications [INSPECTOR, GAUGE AND
INSTRUMENT (machine shop) 601.281-018]. Examines defective parts to determine cause of
defect and recommends changes or modifications. Determines salvageability of defective items,
utilizing knowledge of material and machining costs. Measures surface finish of part, using
profilometer. Inspects first run parts and assemblies. Writes report regarding inspection and
testing results. May draw enlarged part details for use on optical comparator. May use
laser-equipped measuring instruments. May inspect parts for flaws or internal fissures, using
ultrasonic equipment or fluorescent lights. May test gauges used in manufacture and assembly of
watches, using measuring devices and microscope, and be designated Gauge Controller (clock &
watch).
601.281-026 TOOL MAKER, BENCH (machine shop)
Lays out, fits, and assembles parts to make and repair
cutting tools, jigs, fixtures, gauges, or machinists' handtools, analyzing specifications according
to knowledge of tool designs, shop mathematics, machining, and layout and assembly
procedures: Studies blueprint to determine machining to be done and plans layout and assembly.
Measures, marks, and scribes metal stock to lay out for machining by other workers [LAY-OUT
WORKER (machine shop) 600.281-018]. Operates drill press to drill and tap holes in parts
[DRILL-PRESS SET-UP OPERATOR, SINGLE SPINDLE (machine shop) 606.682-018].
Smooths and scrapes parts to fit, using handtools such as files and scrapers. Positions and secures
parts on surface plate with devices such as V-blocks, vises, and angle plates. Assembles parts
into product, using tools such as wrenches, hammers, and tweezers, and verifies dimensions and
alignments, using measuring instruments such as micrometers, height gauges, and gauge blocks.
May set up and operate surface grinder [GRINDER OPERATOR, SURFACE, TOOL (machine
shop) 603.280-014] to grind surface of parts. May test assembled mechanism. May be designated
according to specialized function as Tool Repairer, Bench (machine shop); or according to
product made as Gauge Maker (machine shop); Jig-And-Fixture Maker (machine shop).
601.281-030 TOOL AND FIXTURE REPAIRER (auto. mfg.)
Replaces and adjusts tools and fixtures of production
machines and components of transfer systems in industrial establishment, using handtools and
precision measuring instruments, following specifications and blueprints, and applying
knowledge of hydraulics, pneumatics, and machine programming and maintenance: Observes
production machines, such as punch and drill presses, milling machines, lathes and robotic
equipment, to detect malfunctions, need for adjustment and alignment, or replacement of worn or
broken tools and fixtures. Removes, replaces, adjusts, and aligns components of machines and
equipment, such as production fixtures, programmable machines (robots), and conveyors and
transfer devices (workpiece shuttle mechanisms), using precision measuring instruments and
handtools. Enters instructions on $T3programmable controller$T1 or $T3robot controller$T1, to
adjust speed, motion, and alignment of programmable machines, applying knowledge of machine
programming and operations and production processes. Repairs and calibrates electronic
measuring gauges, using electrical test equipment, master gauges, and handtools. Operates
machines to verify that repairs, adjustments, and alignments have corrected problems and that
machines function according to specifications. Disassembles, cleans, and polishes machine
components. Informs supervisor of machine malfunctions requiring repair by other maintenance
workers, such as ELECTRICIAN, MAINTENANCE (any industry) 829.261-018. May set up
and operate machine tools, such as lathes, mills, and surface grinders, to repair worn or broken
production tools and fixtures.
601.380-010 CARBIDE OPERATOR (machine shop) alternate titles: carbide grinder
Fabricates tungsten-carbide cutting tips for use on lathes,
planers, milling machines, and other metalworking tools, using mechanical or hydraulic press,
furnaces, cutting and grinding wheels, and precision-measuring instruments: Weighs cobalt,
carbon, tungsten, titanium, and other powdered metals on balance scale to obtain specified
molding mixture. Pours mixture from pans into molds or into hoppers for automatic feeding into
molds in press. Turns valves on press to compress mixture into billet. Removes billet from press.
Sets automatic feed, time, and temperature controls on sintering furnace. Feeds billets into
furnace to fuse metals together. Removes billets from furnace and cuts and grinds them into
cutting tips, using diamond cutting wheel and electric grinding wheel. Measures cutting edges of
tips to ensure attainment of specified tolerances, using gauges, rulers, micrometers, and
protractors. Sets pyrometer controls of heat-treating furnace, and feeds cutting tips into furnace to
harden them. May regrind cutting tips and remeasure for conformance to specifications.
601.381-010 DIE FINISHER (machine shop) alternate titles: die fitter
Grinds, files, sands, and polishes surfaces of
metalworking die members to specified shape and smoothness and inspects dies for conformity
to wood, plastic, or plaster die models or prototype parts: Lifts and positions die member on
bench manually or with hoist. Studies blueprints, die models, and prototype parts, and compares
them with die member to ascertain contours. Verifies dimensions and radii, using micrometers,
dial indicators, and calipers. Brushes blue pigment on ridged and grooved surface of
rough-milled die member, and grinds down ridges with powered hand grinder until only traces of
blue pigment remain. Brushes contrasting pigments on die member and prototype part, die
model, or corresponding die member, and presses them together, manually or with press.
Observes pattern of pigments where surfaces have made contact, and grinds and files high spots
until die member conforms to specified contour. Polishes die member, using hand stones.
Inspects smoothness and contour conformity visually and tactually. May be designated according
to part finished as Punch Finisher (machine shop).
601.381-014 DIE MAKER (jewelry-silver.) alternate titles: die cutter; hub cutter
Fabricates set of dies for use in forming and shaping
metal jewelry blanks, following drawings or blueprints and using variety of metalworking
machines and engraver's handtools: Brushes blue dye on surface of steel block workpiece.
Measures, locates, and marks center of block with cross-lines, using divider and drafter's pencil.
Copies design, freehand, from sample drawing or blueprint, maintaining size specifications.
Scribes along drawn line, using scribe. Measures finished design for conformance to
specifications, using calipers and gauges. Positions workpiece in vise and cuts out lines of
design. Chips and cuts away excess metal to complete design, using metalworking machines and
handtools. Verifies dimensions of workpiece, using calipers and gauges. Hardens and tempers
steel block and drives it into another block of soft steel or plastic to form sunken design, using
press, or sends it to machine shop for processing. Engraves other half of die by pounding thin
sheets of metal into completed half. May engrave lettering and designs into dies, using
pantograph machine. May cut out, shape, and harden upper steel die (forcer) used to stamp out
jewelry articles and be known as Forcer Maker (jewelry-silver.).
601.381-018 DIE POLISHER (nonfer. metal)
Polishes and resurfaces bores and cavities of wire
drawing dies to specified size and angles, using hand laps or various die polishing machines,
tools, and diamond cutting pastes: Cleans dies by immersing them in tank with water, detergent,
and agitating pebbles or sonic cleaner. Inspects worn dies to ascertain extent of wear, using
loupe, steel gauge pins, and micrometer. Laps die surfaces to specified dimensions as it revolves
in $T3lapping$T1 machine or on bench lathe, using cotton swabs and progressively finer
diamond pastes; or resurfaces and polishes die, using polishing machine and diamond pastes.
Inspects die for cracks and smoothness of finish, using loupe or microscope, and measures
diameter of die openings for conformance to specifications, using steel gauge pins and
micrometer. May resurface and clean dies, using powered drill, grinder, or files and other
handtools.
601.381-022 DIE-MAKER APPRENTICE (jewelry-silver.) alternate titles: die-cutter apprentice; hub-cutter apprentice
Performs duties as described under APPRENTICE (any
industry) Master Title.
601.381-026 PLASTIC TOOL MAKER (machine shop)
Molds and assembles plastic tools, such as gauges, jigs,
templates, and fixtures, following blueprints: Spreads layers of glass cloth on molds or forms and
brushes each layer with plastic to build plastic tool following configuration of mold. Pries cured
plastic tool from mold with prying tool. Calculates, from blueprints, location of guide and
reference lines and holes for tools. Measures and marks location of lines and holes on tools,
using calipers, micrometers, and protractors. Drills holes in tools, using drill press, and forces
bushings into holes, using arbor press or hammer. Assembles tools by laminating them with glass
cloth and resin. Verifies alignment and dimensions of assembly, using calipers, height gauges,
gram scale, and sight level. Trims excess material from tool parts with power grinder. Fills space
between adjoining parts with plastic. May build wood frame to support and maintain alignment
of complex tools, using carpenter's handtools. May laminate tools to frame.
601.381-030 PLASTIC-FIXTURE BUILDER (machine shop) alternate titles: model maker, plastic
Fabricates precision plastic checking fixtures used to
determine accuracy of stamped metal parts: Casts plastic reproduction from model of part
[PLASTIC DUPLICATOR (machine tools)]. Lays out reference lines on cast as guides in
assembling, fitting, and trimming operations, using height gauges, surface plates, squares,
protractors, and other measuring instruments. Cuts and trims casts following reference lines,
using files, saws, planes, and other handtools. Assembles casts with glue, bolts, and other
fasteners. Fits and fastens metal inserts into fixture at specified points to increase strength or
accuracy. Verifies dimensions of completed fixture for conformance to specifications, using
templates and measuring instruments. May fabricate metal inserts used in fixture, using powered
saws, powered grinder, and files.
601.381-034 SAW MAKER (cutlery-hrdwr.) alternate titles: saw mechanic
Fabricates blades for bandsaws, circular saws, and
jigsaws from steel blanks or band stock, following work order specifications and using
handtools, machine tools, and knowledge of metal characteristics: Selects blank or band stock,
according to size, type, and operating requirements of blade. Hammers dents, kinks, and twists
from blank or band stock. Operates power roller to straighten blade and stretch (roll) blade to
specified temper. Installs specified serrating dies in punch press and operates press to cut teeth in
blade. Sharpens and sets blade teeth, using power grinder and swaging machine. Operates butt
welding machine to join ends of bandsaw blade. May operate surface grinder to grind blanks to
specified thickness. May heat-treat saws to relieve internal stress and temper metal [HEAT
TREATER (heat treating) I]. May specialize in tempering and aligning blades and be designated
Sawsmith (cutlery-hrdwr.).
601.381-038 TEMPLATE MAKER (any industry)
Designs and fabricates templates of assorted materials,
such as metal, fiberglass, wood, and plastic, for laying out reference points and dimensions on
metal plates, sheets, tubes, and structural shapes used for fabricating, welding, and assembling
structural metal products or dies: Plans and develops layout according to blueprints, work orders,
tool planning orders, mockups, or sample parts, applying knowledge of trigonometry, product
design, and properties of metal. Lays out design onto template material, using instruments, such
as compass, protractor, dividers, and ruler, and marks shape and reference points, using scriber,
pencil, chalk, and punch. Cuts, trims, drills, reams, files, shapes, and forms templates, using
handtools, power tools, and fabricating machines, such as bandsaw, drill press, jointer, punch
press, and shear. Nails, glues, screws, bolts, solders, or welds component parts to assemble
templates. Marks job numbers, file codes, dimensions, layout, and fabricating instructions on
templates. Repairs and reworks templates. May construct jigs and fixtures for fabricating
machine operations [TOOL MAKER, BENCH (machine shop) 601.281-026].
601.381-042 DIE MAKER, ELECTRONIC (machine shop)
Lays out, machines, fits, and assembles metal parts to
fabricate electronic (heat-sealing) dies used to form plastic products, working from blueprints or
drawings and using milling machine, tools, and precision instruments: Studies blueprints,
drawings, and specifications to plan machine operations applying knowledge of metal properties
and machine shop math. Selects and positions brass or steel stock on milling table, by hand or
using hoist. Sets up and operates milling machine to machine channels of specified width and
depth in stock to form electrodes. Measures, marks, and cuts electrodes to specified sizes, using
rule, scribe, and cutoff knife. Sets aside electrodes for further processing by other workers.
Positions completed electrodes on die board template to locate reference points for lugs and die
parts, and marks reference points, using hammer and punch. Drills and taps holes in aluminum
plate that serves as base for die, using power drill with tapping attachment, and mounts dies to
base with screws, using screwdriver. Operates milling machine to reduce electrode altitude from
die bottom to top of electrodes, working to tolerances of plus or minus .001 inch. Measures dies
to verify conformance to specifications, using vernier gauge, micrometer, and ruler.
601.482-010 PROFILE-GRINDER TECHNICIAN (clock & watch)
Sets up and operates grinding equipment to grind
precision cutting tools and dies from tungsten carbide and high-speed steel, working from
blueprints and to tolerances of 0.0001 inch: Plans and lays out work and sets up equipment, using
variety of precision measuring devices and machine attachments and fixtures. Grinds tools and
dies to prescribed dimensions by turning handwheels or adjusting controls to feed work against
grinders. Measures dimensions with precision gauges. Removes, dresses, and installs emery,
diamond-impregnated, and diamond-charged cast-iron grinding wheels.
601.682-010 TOOL DRESSER (any industry) alternate titles: drill-sharpener operator
Operates compressed-air or steam-driven machine to
sharpen large drills, such as rock drills, used in construction, mining, quarrying, and
well-drilling: Places cutting end of drill in forge to heat cutting edge to increase malleability.
Inserts heated drill into die space on machine. Starts hammering action of die to shape cutting
edge of drill. Stops machine and removes edged drill. Tempers drill by heating it in forge and
quenching it in water, brine, or oil.
602 GEAR MACHINING OCCUPATIONS
This group includes occupations concerned with shaping metal gears by any combination of milling, turning, planing, abrading, boring, chipping, sawing, or shaving.
602.280-010 GEAR-CUTTING-MACHINE SET-UP OPERATOR, TOOL (machine shop) alternate titles: gear cutter; gear shaper; tool-room gear-machine operator
Sets up and operates variety of gear-cutting machines,
such as gear shapers, hobs, and generators to machine spline, rack, or gear teeth on metal blanks,
analyzing specifications according to knowledge of gear designs, shop mathematics, and gear
machining procedures: Studies blueprint to visualize machining required, and plans sequence of
operations. Selects machine and method of holding workpiece. Computes machine settings from
gear specifications. Positions and secures workpiece to cutting angle on arbor, in chuck or other
holding device, using wrenches. Selects, positions, and secures cutters in toolhead, in spindle, or
on arbor. Sets feed rates and rotation speeds of cutters and workpiece in relation to each other by
selecting and mounting gears, cams, or templates, or by moving levers. Moves controls to set
cutting speeds and depth of stroke and cut for reciprocating cutters, and to position tool and
workpiece in relation to each other. May select and mount guides to impart twisting motion to
spindle for cutting helical gears. Starts machine, turns valve handle to start flow of coolant
against cutter and workpiece. Verifies conformance of machined gear to specifications, using
gear $T3measuring wires, involute checker,$T1 master gears, optical comparator (shadowgraph),
and other special gear inspection equipment. May operate broaching machine to broach internal
splines or gears [BROACHING-MACHINE SET-UP OPERATOR (machine shop)
605.382-010]. May work on nonmetallic materials. May be required to have experience with
particular gear type, material, or size, type, or trade name of machine.
602.360-010 GRINDER SET-UP OPERATOR, GEAR, TOOL (machine shop) alternate titles: gear-and-spline grinder
Sets up and operates precision gear grinding machine
with special $T3indexing$T1 equipment to grind master and precision gears, usually on custom
basis, analyzing specifications and selecting tooling according to knowledge of gear grinding
procedures: Studies blueprints and machining instructions to determine grinding operations and
to plan sequence of operations. Computes machine indexing ratios and cam dimensions for
specified spacing and contour of gear teeth, using shop mathematics. Selects index plate, cams,
grinding wheel, feed rates, grinding speed, and depth of cut, according to computations, gear
specifications, and knowledge of gear design, metal properties, and abrasives. Positions and
secures index plate, cams, and grinding wheel in machine, using wrenches and measuring
devices. Sets up automatic dressing device to dress wheel to specified profile. Moves controls to
set synchronized rotation speeds and feed rates. Positions and secures workpiece on mandrel
between centers or in chuck, and turns handwheels to position workpiece and wheel, verifying
positions with thickness gauges, dial indicators, and micrometers. Turns valve handle and directs
flow of coolant against wheel and workpiece. Moves controls to index workpiece and feed wheel
to workpiece, adjusting depth of cut in part by sight and feel. Verifies dimensions of ground
workpiece for conformance to specifications, using gear $T3measuring wires and involute
checker.$T1 May grind nonmetallic materials. May be required to have experience with
particular type of gear, precision level, or type or trade name of machine.
602.362-010 GEAR INSPECTOR (machine shop)
Sets up and operates gear inspection equipment to
measure curvature of gear tooth, distance between teeth, concentricity of gear, profile and surface
dimensions, surface finish, and material hardness of production and prototype gears, utilizing
knowledge of gear inspection techniques and procedures: Reads blueprints or specifications to
determine dimensions and tolerances. Mounts master gears on testing machine, attaches
recording instrument leads and styluses to gear, and starts machine to calibrate machine
instruments. Mounts and secures gear on spindle or arbor of machine, sets instrument stylus on
gears, and turns instrument dials to zero. Starts machine and reads instrument dials to determine
dimensions of gear, and compares readings to specifications. Measures profile and surface
dimensions of gear, using optical comparator and micrometer, vernier gauges, and sine blocks.
Measures surface finish, using profilameter. Measures material hardness, using hardness gauge.
Recommends corrections on gear forming machine setup to eliminate defects. Maintains records
of gears tested and measured. May lay out and mark drill holes, keyways, and gear tooth profile
on blanks, using measuring devices and marking tools. May check gear-forming machine setup,
using master gears.
602.362-014 GEAR-SORTING-AND-INSPECTING MACHINE OPERATOR (machine shop) alternate titles: gear-coding machine operator
Sets up and operates gear inspecting and sorting
machines to measure gears for deviations from dimensional specifications and to test mesh of
gears with master (inspection) gears: Positions gear in spindle and moves controls to engage it
with master gear. Rotates gear and observes mating with master gear and listens for sounds
indicating defective gear. Marks gear with ink or attaches tracing stylus to gear to locate and
highlight wear points. Color codes gears to enable other workers to match gears having similar
deviations. May file burrs or highspots on gears. May test mesh and accuracy of finished
transmission gears and be designated Gear Roller (machine shop).
602.380-010 GEAR-CUTTING-MACHINE SET-UP OPERATOR (machine shop) alternate titles: all-around-gear-machine operator; gear cutter; gear-machine operator, general
Sets up and operates two or more types of gear-cutting
and finishing machines, such as gear shapers, hobs, honers and lappers, and generators, to
machine spline or gear teeth on metal blanks according to machining instructions and knowledge
of gear types and gear machining: Reads blueprint or job order to determine gear dimensions and
specifications, fixture and cutter to use, and machine settings. Secures and positions cutters in
toolhead, on spindle, or on arbor, and bolts fixtures on machine. Mounts gears, cams, or
templates, or moves levers to set feed rates and rotation speeds of cutters and workpiece in
relation to each other. Positions and secures workpiece to specified cutting angle on arbor, in
chuck, or in fixture, using wrenches. Starts machine, turns valve handle, and directs flow of
coolant against tool and workpiece. Verifies conformance to specifications, using micrometers,
gear $T3measuring wires,$T1 master gears, and special gear inspection equipment. May set
cutting speeds and depth of stroke and cut for reciprocating cutters. May mount guides to control
twisting motion of spindle for cutting helical gears. May compute gear dimensions and machine
settings, applying knowledge of shop mathematics and gear design. May machine nonmetallic
materials. May be required to have experience with custom or production work, or with
particular material, product, or size, type, or trade name of machine.
602.382-010 GEAR HOBBER SET-UP OPERATOR (machine shop) alternate titles: hobbing-machine operator
Sets up and operates one or more gear $T3hobbing$T1
machines to machine splines or gear teeth on metal blanks according to specifications, machining
instructions, and knowledge of gear hobbing procedures: Reads machining instructions or
blueprints to determine machine settings, fixtures and hobs to use, and gear specifications, such
as dimensions and tolerances. Clamps workpiece in fixture or presses it on arbor and mounts
arbor between centers. Positions and secures specified hob on arbor in relation to workpiece,
using wrenches. Moves levers or mounts gears in machine to set feed rates and rotation speeds of
hob and workpiece following machining instructions. Turns handwheel to feed hob to workpiece
or vice versa, and engages automatic feed. Turns valve handle and directs flow of coolant against
hob and workpiece. Verifies conformance of hobbed gears to specifications, using micrometers,
gear $T3measuring wires,$T1 master gears, and $T3involute checker.$T1 May compute data,
such as gear dimensions and machine settings, applying knowledge of shop mathematics. May
machine plastic or other nonmetallic materials. May be required to have experience with custom
or production work, or with particular material, product, or size, type, or trade name of machine.
602.382-014 GEAR-GENERATOR SET-UP OPERATOR, SPIRAL BEVEL (machine shop) alternate titles: curved-tooth-gear-generator operator; gleason-gear generator; hypoid-gear generator; spiral-gear generator
Sets up and operates one or more spiral-bevel $T3gear
generating$T1 machines to cut and shape spiral or hypoid teeth on metal bevel-gear blanks
according to specifications, machining instructions, and knowledge of gear types and generating
procedures: Reads blueprint or machining instructions to determine gear type, dimensions, and
number of teeth, and machine settings and cutter to be used. Clamps workpiece in fixture or
presses it on arbor, and positions it to cutting angle. Positions and secures cutter on spindle in
relation to workpiece, using wrenches and turning handwheels. Moves levers to set cutter and
workpiece rotation speeds in relation to each other. Mounts gears, cams, or templates in machine
to control $T3indexing$T1 of workpiece and rolling motion of cutter. Starts machine, turns valve
handle, and directs flow of coolant against cutter and workpiece. Verifies conformance of
machined gear to specifications, using micrometers, master gears, and special gear inspection
equipment. May compute data, such as gear dimensions and machine settings, applying
knowledge of shop mathematics. May machine plastics or other nonmetallic materials. May be
required to have experience with custom or production work, or with particular material, product,
or size, type, or trade name of machine.
602.382-018 GEAR-GENERATOR SET-UP OPERATOR, STRAIGHT BEVEL (machine shop) alternate titles: bevel-gear-generator operator; generator operator, straight-bevel gear; straight-tooth-gear-generator operator
Sets up and operates one or more straight-tooth
bevel-gear generating machines to cut and shape straight teeth on metal bevel-gear blanks,
according to machining instructions and knowledge of $T3gear generating$T1 procedures: Reads
blueprint or machining instructions to determine machine settings, fixtures and cutters to use, and
gear type, dimensions, tolerances, and number of teeth to be generated. Mounts workpiece on
arbor and positions it to cutting angle. Positions and clamps two cutters in toolheads, and
positions cutter cradle to specified angle, using wrenches. Mounts gears and cams in machine to
control rotation speed and $T3indexing$T1 of workpiece, cutting speed, and rolling motion of
cutter cradle. Starts machine, turns valve handle, and directs flow of coolant against reciprocating
cutters and workpiece. Verifies conformance of machined gear to specifications, using
micrometers, master gears, and special gear inspection equipment. May compute such data as
gear dimensions and machine settings, applying knowledge of shop mathematics. May machine
plastics or other nonmetallic materials. May be required to have experience with custom or
production work, or with particular material, product, or size, type, or trade name of machine.
602.382-022 GEAR-MILLING-MACHINE SET-UP OPERATOR (machine shop) alternate titles: milling-machine operator, gear
Sets up and operates one or more gear milling machines
to machine splines or gear teeth on metal blanks, according to machining instructions and
knowledge of gear milling procedures: Reads blueprints or machining instructions to determine
machine settings, fixtures and milling tools to use, and gear specifications, such as dimensions
and tolerances. Clamps workpiece in fixture or presses it onto arbor. Positions and secures cutter
on spindle in relation to workpiece, using wrenches. Moves levers or mounts gears in machine to
set feed rates and rotation speeds of cutter and workpiece in relation to each other. Starts
machine, turns valve handle, and directs flow of coolant against cutter and workpiece. Verifies
conformance of machined gears to specifications, using micrometers, gear $T3measuring
wires,$T1 and special gear inspection equipment. May compute data, such as gear dimensions
and machine settings, applying knowledge of shop mathematics. May machine plastics or other
nonmetallic materials. May be required to have experience with custom or production work, or
with particular material, product, or size, type, or trade name of machine.
602.382-026 GEAR-SHAPER SET-UP OPERATOR (machine shop)
Sets up and operates one or more gear shaping machines
to machine splines or gear teeth in metal blanks, according to machining instructions and
knowledge of gear types and gear shaping procedures: Reads machining instructions or
blueprints to determine machine settings, holding fixtures and cutters to use, and gear type,
dimensions, tolerances, and number of teeth to be cut and shaped. Clamps workpiece in fixture or
presses it on arbor. Positions and secures specified cutter on spindle in relation to workpiece and
sets length of stroke, using wrenches. Moves levers or mounts gears in machine to set feed rates,
cutting speeds, and rotation speeds of cutter and workpiece, according to machining instructions.
Turns valve handle and directs flow of coolant against cutter and workpiece. Verifies
conformance of machined gears to specifications, using micrometers, master gears, gear
$T3measuring wires,$T1 and special gear inspection equipment. May mount guides to control
twisting motion of spindle for cutting helical gears. May compute data, such as gear dimensions
and machine settings, applying knowledge of shop mathematics. May machine plastics or other
nonmetallic materials. May be required to have experience with custom or production work or
with particular material, product, or size, type, or trade name of machine.
602.382-030 GEAR-SHAVER SET-UP OPERATOR (machine shop)
Sets up and operates one or more gear-shaving machines
that utilize gashed, gear-shaped cutting tools to shape and smooth gear teeth or to correct
distortions remaining from roughing (gear-cutting) operation, following machining instructions
and knowledge of gear-shaving methods: Reads blueprints or machining instructions to
determine machine settings, fixtures and cutterheads to use, and gear dimensions and tolerances.
Presses gear on arbor and mounts it between centers, using handtools. Mounts cutter on
cutterhead. Moves controls to set feed rates, cutting speeds, reciprocating action, and angles of
cutter and gear. Turns handwheel to feed gear to cutter. Verifies conformance to specifications,
using micrometers, $T3measuring wires,$T1 and $T3involute checker.$T1 May compute gear
dimensions and machine settings, applying knowledge of shop mathematics and gear formulas.
May work on nonmetallic gears. May be required to have experience with custom or production
work, or with particular material, kind of gear, or machine of particular type or trade name.
602.382-034 GRINDER, GEAR (machine shop) alternate titles: gear-grinding-machine operator; gear-tooth-grinding-machine operator
Sets up and operates one or more gear grinding machines
to grind surfaces of splines or gear teeth, following machining instructions and applying
knowledge of gear grinding techniques: Reads blueprint or machining instructions to determine
fixtures and grinding wheel to use, machine settings, and gear dimensions and tolerances.
Clamps workpiece in chuck or fixture, or presses it on arbor and mounts between centers.
Positions and secures wheel on arbor in relation to workpiece, using wrenches. Moves levers or
mounts gears in machine to set feed rates and rotation speeds of wheel and workpiece in relation
to each other. Turns handwheels to feed wheel to workpiece or vice versa, and to index
workpiece, and engages automatic feeding and $T3indexing$T1 device. Turns valve and directs
flow of coolant against wheel and workpiece. Sets up and operates wheel dressing device to dress
and true abrasive wheel. Verifies conformance to specifications, using micrometers, gear
$T3measuring wires, and involute checker.$T1 May compute data, such as gear dimensions and
machine settings, applying knowledge of shop mathematics. May work on nonmetallic materials.
May be required to have experience with custom or production work or with particular material,
gear type, or size, type, or trade name of machine.
602.482-010 GEAR-LAPPING-MACHINE OPERATOR (machine shop) alternate titles: gear finisher; gear nicker; gear-tooth-lapping-machine operator
Sets up and operates gear-lapping machine to lap gears
according to specifications, machining instructions, standard charts, and knowledge of gear
$T3lapping$T1 procedures: Reads blueprint or instructions to determine gear dimensions,
tolerances, and number of gears to be lapped, and machining instructions for lapping speeds and
pressures, work-holding fixtures, and spindle angles to be used. Positions and secures pairs or
trains of gears on spindles, using fixture and wrenches. Moves controls to set spindle angles,
lapping speeds, tool pressure, and length of cycle. Brushes or sprays $T3lapping compound$T1
on gears. Starts machine, examines gear contact area, and moves handwheels to adjust action of
gears. Inspects lapped gears for conformance to specifications, using knowledge of gear design
and surface finishing. May inspect finish and mechanical action of gears with gear inspection
equipment. May be required to have experience with particular type of gear or machine. May lap
gears against each other metal-to-metal without lapping compound and be designated Gear
Burnisher (machine shop).
602.685-010 GEAR-CUTTING-MACHINE OPERATOR, PRODUCTION (machine shop) alternate titles: hob mill operator; production-gear cutter
Tends one or more previously set up gear-cutting
machines, such as gear shapers, hobbers, finishers, and generators, to machine spline or gear
teeth on metal blanks: Positions and secures workpiece on arbor, or in chuck, fixture, or
automatic feeding mechanism. Starts machine and flow of coolant and observes operation.
Adjusts machine stops and changes worn cutter, using wrenches. Verifies conformance to
specifications, using fixed gauges, micrometers, and preset dial indicators. May machine plastics
or other nonmetallic materials. May be required to have experience with particular material,
product, or size, type, or trade name of machine.
603 ABRADING OCCUPATIONS
This group includes occupations concerned with smoothing, polishing, sharpening, or cutting through or into metal objects by the wearing away action of abrasives. The smoothing, polishing, sharpening, or shaping of nonmetallic materials, except wood, are also included when the methods and machine tools commonly applied to the machining of metal are used.
603.130-010 SUPERVISOR, GRINDING (any industry)
Supervises and coordinates activities of workers engaged
in grinding metal objects to specifications, applying knowledge of metal properties, abrasives,
and grinding procedures. May set up machines. May train new workers. Performs duties
described under SUPERVISOR (any industry) Master Title.
603.137-010 FILING-AND-POLISHING SUPERVISOR (ordnance)
Supervises and coordinates activities of workers engaged
in filing, burring, tumbling, sandblasting, and polishing small arms, such as rifles and machine
guns. Performs duties as described under SUPERVISOR (any industry) Master Title.
603.260-010 GRINDER SET-UP OPERATOR, THREAD TOOL (machine shop) alternate titles: precision-thread-grinder operator; thread-grinder, tool
Sets up and operates thread-grinding machine to grind
internal or external threads on metal objects, such as worm gears and leadscrews, on custom
basis, analyzing specifications and selecting tooling according to knowledge of thread grinding
procedures: Studies blueprint to visualize grinding to be done and plans sequence of operations.
Selects and computes machine settings, such as positioning angles, rotation speeds, feed rates,
and gear ratios, using knowledge of shop mathematics. Selects grinding wheel, gears, and cams,
using knowledge of thread types, metal properties, and abrasives, and installs them, using
wrenches. Positions and secures workpiece between centers or in chuck jaws. Sets trip stops
along calibrated rack to limit workpiece travel and activate wheel withdrawal. Adjusts device to
dress wheel to computed angles, and to set for automatic dressing during operation. Moves
controls to adjust, start, and control operation of machine. Verifies conformance of ground
workpieces to specifications, using such measuring devices as thread $T3measuring wires,$T1
dial indicator, gauge blocks, and optical comparator (shadowgraph). May be required to have
experience with particular type of thread, kind of computation, or level of precision, or with
machine of particular type or trade name.
603.280-010 GRINDER OPERATOR, EXTERNAL, TOOL (machine shop) alternate titles: cylindrical grinder, tool; external-cylindrical-grinder operator; external grinder, tool; grinder, hand; outer-diameter grinder, tool; precision grinder, external
Sets up and operates external grinding machines to grind
external cylindrical and tapered surfaces of rotating metal workpieces, such as tool, die, and
machine parts, usually for limited runs, analyzing blueprints and specifications and selecting
tooling according to knowledge of external grinding procedures: Studies blueprint or layout on
workpiece to visualize grinding to be done and plans sequence of operations. Selects grinding
wheel, according to knowledge of metal properties and abrasives, and mounts wheel on spindle.
Dresses wheel manually or with preset dressing device. Moves controls and reads dials to set
angle of workpiece to grinding wheel. Positions and secures workpiece between centers, on
magnetic chuck, or in chuck jaws, using wrenches. Selects and sets grinding wheel speed, work
surface speed, and travel rate of powered table. Positions and tightens stops to set depth of
grinding wheel cut and stroke of worktable. Moves controls to feed wheel to workpiece manually
or automatically. Turns valve handle and directs flow of coolant against wheel and workpiece.
Verifies dimensions of ground workpiece for conformance to specifications, using such
measuring instruments as micrometers, dial indicators, and gauge blocks. May dress grinding
wheel to specified profile for contour grinding, using special fixtures and tools. May grind
nonmetallic materials. May operate tracer attachment to duplicate contours from templates or
models. May be required to have experience with particular material, product, or precision level,
or with machine of particular size, type, or trade name. May set up machines for other workers.
May be designated according to type of machine operated as Roll Grinder Operator (machine
shop).
603.280-014 GRINDER OPERATOR, SURFACE, TOOL (machine shop) alternate titles: grinder, hand; precision grinder, surface; rotary-surface grinder; surface grinder; surface-grinding-machine hand
Sets up and operates surface grinding machines with
horizontal or vertical spindle and reciprocating or rotating table to grind flat or contoured
surfaces of metal workpieces, such as tool, die, and machine parts, usually for limited runs,
analyzing specifications and selecting tooling according to knowledge of surface grinding
procedures: Studies blueprint or layout on workpiece to visualize grinding to be done and plans
sequence of operations. Positions and secures workpiece on magnetic chuck, in holding fixture,
or directly to machine table. Selects grinding wheel, grinding speeds, and feed rates for each
operation according to knowledge of metal properties and abrasives, and mounts wheel on
spindle. Moves device to dress wheel. Moves controls and reads dials to set rotation speeds and
feed rates. Positions and tightens stops to limit table travel. Moves controls to feed workpiece to
wheel or vice versa. Turns valve handle and directs flow of coolant against wheel and workpiece.
Verifies dimensions of ground workpiece for conformance to specifications, using such
measuring instruments as micrometers, comparators, dial indicators, gauge blocks, and load test
equipment. May dress grinding wheel to specified profile for contour grinding, using special
fixtures and tools. May grind nonmetallic materials, such as plastics. May operate tracer
attachment to duplicate contours from templates or models. May be required to have experience
with particular material, product, or precision level, or with machine of particular size, type, or
trade name.
603.280-018 GRINDER OPERATOR, TOOL (machine shop) alternate titles: precision grinder
Sets up and operates variety of grinding machines, such
as external, internal, and surface grinders, to grind metal workpieces, such as machine parts, dies,
or tools, according to knowledge of grinding procedures: Studies blueprint or layout on
workpiece to visualize grinding to be done, and plans sequence of operations. Selects grinding
wheel, applying knowledge of abrasives and metal properties, and secures it on spindle, using
wrench. Dresses wheel with dressing device. Lifts workpiece manually or with hoist, and
positions and secures workpiece to holding device, using wrenches and clamps. Selects feed
rates, grinding speeds, depth of cuts, and grinding wheel of size, shape, and grade for each
operation, applying knowledge of metal properties, abrasives, product specifications, and shop
mathematics. Positions and tightens stops to limit travel of workpieces or grinding wheel. Moves
controls to position wheel and workpiece in relation to each other, and to set feed, speed, and
depth of cut. Starts machine, turns handwheel to feed grinding wheel to workpiece or vice versa,
and engages power feeding device. Turns valve handle and directs flow of coolant against wheel
and workpiece. Observes operation and adjusts position and action of wheel and workpiece.
Verifies dimensions of ground workpieces for conformance to specifications, using measuring
instruments, such as templates, micrometers, dial indicators, and gauge blocks. Works to
tolerances of plus or minus 0.0001 inch. May measure, mark, and scribe workpiece to lay it out
for grinding [LAY-OUT WORKER (machine shop) 600.281-018]. May dress grinding wheels to
complex profiles, using special fixtures and tools. May grind nonmetallic materials, such as
plastics. May operate tracer attachment to duplicate contours from templates or models. May be
required to have specialized experience with particular materials, product, or precision level or
with machine of particular size, type, or trade name.
603.280-022 GRINDER SET-UP OPERATOR, INTERNAL (machine shop) alternate titles: grinder, hand; inner-diameter grinder, tool; internal grinder, tool; internal-grinding-machine hand; internal-grinding-machine operator; precision grinder
Sets up and operates internal grinding machines to grind
internal cylindrical and tapered surfaces of rotating metal workpieces, such as tool, die, and
machine parts, usually for limited runs, analyzing blueprints and specifications and selecting
tooling according to knowledge of internal grinding procedures: Studies blueprint or layout on
workpiece to visualize grinding to be done and plans sequence of operations. Selects grinding
wheel, according to knowledge of metal properties and abrasives, and mounts wheel on spindle.
Moves controls and reads dial to set angle of workpiece to grinding wheel, following product
specifications. Dresses wheel manually or with preset device. Positions and secures workpiece on
faceplate, magnetic chuck, or in chuck jaws, using wrenches. Selects and sets grinding wheel
speed, work surface speed, and workpiece table travel rate, according to knowledge of metal
properties and abrasives. Positions and tightens stops to set depth of grinding wheel cut and
stroke of workpiece table. Moves controls to feed wheel to workpiece manually and
automatically. Turns valve handle and directs flow of coolant against wheel and workpiece.
Verifies dimensions of ground workpiece for conformance to specifications, using such
measuring instruments as micrometers, dial indicators, and gauge blocks. May dress grinding
wheel to specified profile for contour grinding, using special fixtures and tools. May grind
nonmetallic materials, such as plastics. May operate tracer attachment to duplicate contours from
templates or models. May be required to have experience with particular material, product, or
precision level, or with machine of particular type or trade name.
603.280-026 GRINDER SET-UP OPERATOR, JIG (machine shop) alternate titles: jig grinder; jig-grinding-machine operator; precision jig grinder
Sets up and operates jig grinding machine to locate and
precision-grind holes and contours in metal objects, such as tool, die, and machine parts, on
custom basis, analyzing blueprints and specifications and selecting tooling according to
knowledge of jig grinding procedures: Studies blueprint, layout on workpiece, or written or oral
specifications to visualize grinding to be done and plans sequence of operations. Computes and
sketches hole and contour dimensions and locations in relation to base reference points and lines.
Positions and secures workpiece on machine table, and turns handwheels to move table and
workpiece to computed position under spindle center, verifying each step with dial indicator.
Selects grinding wheel, grinding speeds, and feed rates for each operation according to
knowledge of metal properties and abrasives, and mounts wheel on spindle. Moves controls and
reads dials to set grinding speed, feed rate, spindle angle for taper grinding, diameter of
$T3planetary action,$T1 and limits of automatic reciprocating wheel feed. Dresses wheel
manually or with preset dressing device. Moves controls to feed wheel into hole and against
surface of workpiece. Verifies hole locations and dimensions for conformance to specifications,
using measuring instruments, such as dial indicator, gauge blocks, and $T3telescoping
gauges.$T1 May be required to have experience with particular material, product, precision level,
or with machine of particular type or trade name.
603.280-030 GRINDER SET-UP OPERATOR, UNIVERSAL (machine shop) alternate titles: precision grinder, universal; universal grinde |
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