Machine Tools - Occupations Duties
View related occupations duties grouped under the 'machine tools' business sector.
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Detail Maker And Fitter Occupation
Job Duties:
- Sets up prototype metalworking machines, like lathe, milling machine, or forging press to verify conformance to operating specifications, according to knowledge of inspection and machining techniques, tools processes
- Examine electrical components, like electrical timers, relays and switches, for making sure adequate functioning of automatic cycles
- Compare rotary table indexing, when present, to specifications
- Inspect fixture alignment, machine table movement, and position of cutting tools, using instruments, like dial indicators, height setting devices gauges
- Install dies or tool holders and tools, following blueprints, and using handtools measuring instruments
- Sets controls to regulate speed of feed, depth of cut, or length of ram stroke, according to type of machine being tested
- Operate machine to obtain sample workpiece
- Verify conformance of workpiece to specifications, using measuring instruments, like calipers, micrometers, and gauges
- Determine cause of malfunction from inspection data
- Repair electrical and mechanical components reports electronic malfunction to supervisor
- Record operational data, like pressure readings, length of stroke, feeds, and speeds, for customer use
- May demonstrate setup operation for customer personnel
- May be designated according to type of machine as Honing-Machine Try-Out Setter machine tools .
Diamond die Polisher Occupation
Job Duties:
- Laps polishes bores of diamond wire drawing dies to specified dimensions
- Position die in holding device of machine
- Insert steel needle in machine spindle, positions needle inside bore of die starts machine which rotates needle in bore
- Dabs progressively finer diamond-dust paste or solution on needle during lapping operation
- Pull specified gauge wire through bore measures wire with micrometer to verify bore dimension
- Inspect bore of die for cracks other defects, using magnifying glass or microscope
- Replace worn needles sharpens points on grinder
- May insert press hand lapping tool in bore of rotating die
- May drill initial bore, using diamond drills.
Diamond Driller Occupation
Job Duties:
- Drill minute channels in industrial diamonds for use in wire-drawing dies, using drill, lathe, and handtools
- Position diamond in chuck of lathe equipped with diamond-charged wire drilling point or forms wax cup around diamond by hand, fills cup with diamond dust mixture and inserts steel needle into lathe to act as drilling tool
- Regulate speed of revolutions reciprocating action of drilling mechanism
- Advance cutting point of drill according to specifications covering depth contour of channel, working to tolerance of 0.0001 inch
- Examine depth and shape of channel with microscope regrinds point of drill
- Drill backout hole drilled from opposite side of stone to meet channel to prevent chipping surface of stone
- Laps inner wall of channel by means of machine that revolves stone as rotating wire or needle rocks back forth in channel, working to hole diameter tolerance of 0.0000018 inch
- Test accuracy of die hole by pulling specified length of wire through die measuring its resistance in Wheatstone bridge having readings translated into wire diameter or by taking a series of readings along length of wire with electronic micrometer
- Secure stone in metal mounting, using molten solder
- May drill cavity spot in face of stone to hold diamond dust mixture, by pressing pointed end of diamond chip against revolving stone, using pliers
- May be designated according to operation performed as Finisher, Fine-Diamond Dies machine tools .
Diamond Mounter Occupation
Job Duties:
- Position and mounts industrial diamonds in tools used for dressing and truing I grinding wheels and for machining metal, according to type size of tool by one of following methods
- 1 Places tools shank in press moves controls to force diamond into shank
- Apply solder & flux around diamond places tool into electric induction furnace for specified time to bond diamond to shank
- 2 Inserts wire through hole in diamond twists wire around pin on tool shank
- Position mold around diamond and shank pours molten metal into mold to cast tool containing diamond
- 3 Presses powdered metal into mold around diamond on tool shank places in sintering furnace for specified time to fabricate tool containing diamond
- 4 Aligns clamps diamond in tool shank
- Clean joints of diamond and shank, using wire brush cleaning solution
- Bond shank and diamond together, using brazing alloy acetylene hand torch.
Die Cutter Diamond Occupation
Job Duties:
- Laps polishes bores of diamond wire drawing dies to specified dimensions
- Position die in holding device of machine
- Insert steel needle in machine spindle, positions needle inside bore of die starts machine which rotates needle in bore
- Dabs progressively finer diamond-dust paste or solution on needle during lapping operation
- Pull specified gauge wire through bore measures wire with micrometer to verify bore dimension
- Inspect bore of die for cracks other defects, using magnifying glass or microscope
- Replace worn needles sharpens points on grinder
- May insert press hand lapping tool in bore of rotating die
- May drill initial bore, using diamond drills.
Driller Fine diamond Dies Occupation
Job Duties:
- Drill minute channels in industrial diamonds for use in wire-drawing dies, using drill, lathe, and handtools
- Position diamond in chuck of lathe equipped with diamond-charged wire drilling point or forms wax cup around diamond by hand, fills cup with diamond dust mixture and inserts steel needle into lathe to act as drilling tool
- Regulate speed of revolutions reciprocating action of drilling mechanism
- Advance cutting point of drill according to specifications covering depth contour of channel, working to tolerance of 0.0001 inch
- Examine depth and shape of channel with microscope regrinds point of drill
- Drill backout hole drilled from opposite side of stone to meet channel to prevent chipping surface of stone
- Laps inner wall of channel by means of machine that revolves stone as rotating wire or needle rocks back forth in channel, working to hole diameter tolerance of 0.0000018 inch
- Test accuracy of die hole by pulling specified length of wire through die measuring its resistance in Wheatstone bridge having readings translated into wire diameter or by taking a series of readings along length of wire with electronic micrometer
- Secure stone in metal mounting, using molten solder
- May drill cavity spot in face of stone to hold diamond dust mixture, by pressing pointed end of diamond chip against revolving stone, using pliers
- May be designated according to operation performed as Finisher, Fine-Diamond Dies machine tools .
Machine Try out Setter Occupation
Job Duties:
- Sets up prototype metalworking machines, like lathe, milling machine, or forging press to verify conformance to operating specifications, according to knowledge of inspection and machining techniques, tools processes
- Examine electrical components, like electrical timers, relays and switches, for making sure adequate functioning of automatic cycles
- Compare rotary table indexing, when present, to specifications
- Inspect fixture alignment, machine table movement, and position of cutting tools, using instruments, like dial indicators, height setting devices gauges
- Install dies or tool holders and tools, following blueprints, and using handtools measuring instruments
- Sets controls to regulate speed of feed, depth of cut, or length of ram stroke, according to type of machine being tested
- Operate machine to obtain sample workpiece
- Verify conformance of workpiece to specifications, using measuring instruments, like calipers, micrometers, and gauges
- Determine cause of malfunction from inspection data
- Repair electrical and mechanical components reports electronic malfunction to supervisor
- Record operational data, like pressure readings, length of stroke, feeds, and speeds, for customer use
- May demonstrate setup operation for customer personnel
- May be designated according to type of machine as Honing-Machine Try-Out Setter machine tools .
Plaster pattern Caster Occupation
Job Duties:
- Cast finishes plaster patterns used in making precision sand molds for dies, tools, and machine parts, according to specifications
- Construct boxlike enclosure around part to be cast, filling in cracks openings with clay
- Lubricate surface with parting agent that prevents plaster from sticking to part
- Mix plaster pours it into enclosure
- Reinforce plaster with hemp fiber small steel rods or heavy wire
- Remove hardened plaster cast from enclosure
- Patch broken edges fractures, using clay or plaster
- Trim plaster pattern to tolerance by scraping shaping plaster surfaces by hand following blueprint, using flat metal scrapers
- Verify dimensions, using measuring instruments, like calipers, vernier gauge, and protractor
- Make identifying marks on pattern with crayon, inked rubber stamps, or pointed tool
- Shellac finished surfaces to harden smooth them.
Plastic Duplicator Occupation
Job Duties:
- Cast plastic reproductions of models, patterns, and prototype parts
- Examine part to define sections that can be cast assembled to obtain reproduction
- Construct boxlike enclosure around section of part to be duplicated
- Brush or sprays surface of section with parting agent to prevent plastic from sticking to surface
- Cast part, using either of following methods
- 1 Brushes plastic facing coat on section of part to be cast
- Mix plastic resin brushes thin, uniform coat over facing coat
- Cuts fiberglass cloth to approximate size of cast places it over resin
- Brush cloth to smooth it, applies additional coat of resin, and repeats procedure until alternate layers of fiberglass resin are built up to specified thickness
- 2 Brushes plastic facing coat on section of part to be cast, mixes plastic resin, and pours it into enclosure until cast is of specified thickness
- Remove hardened cast from section
- File, grinds, and sands cast to remove jagged edges to cut cast down to specified dimensions
- Form base and bracing structure to support cast, using handtools liquid adhesive
- May assemble casts to produce completed model, pattern, or prototype
- May bolt or otherwise fasten metal inserts to casts at specified points.
Spotter Occupation
Job Duties:
- Locate marks specified drilling position on surfaces of diamonds used as dies
- Place diamond under microscope moves it at various angles until clear channel through gem can be seen
- Form indentation in diamond surface to mark spot for drilling, using diamond chips held in pliers
- Drill starting hole of minute dimensions, using electrically powered hand drill.