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Machinists - 51-4041.00

O*NET-SOC Description

Set up and operate a variety of machine tools to produce precision parts and instruments. Includes precision instrument makers who fabricate, modify, or repair mechanical instruments. May also fabricate and modify parts to make or repair machine tools or maintain industrial machines, applying knowledge of mechanics, mathematics, metal properties, layout, and machining procedures.

Sample of Reported Job Titles

  • Gear Machinist
  • Journeyman Machinist
  • Machine Operator
  • Machine Repair Person
  • Machinist
  • Maintenance Machinist
  • Maintenance Specialist
  • Production Machinist
  • Set-Up Machinist
  • Tool Room Machinist

SOC Occupation Groups

51-0000 Production Occupations
51-4000 Metal Workers and Plastic Workers
51-4040 Machinists
51-4041.00 Machinists

Related Occupations

Tasks

  • Advise clients about the materials being used for finished products.
  • Align and secure holding fixtures, cutting tools, attachments, accessories, or materials onto machines.
  • Calculate dimensions and tolerances using knowledge of mathematics and instruments such as micrometers and vernier calipers.
  • Check work pieces to ensure that they are properly lubricated or cooled.
  • Clean and lubricate machines, tools, and equipment to remove grease, rust, stains, and foreign matter.
  • Confer with engineering, supervisory, or manufacturing personnel to exchange technical information.
  • Confer with numerical control programmers to check and ensure that new programs or machinery will function properly and that output will meet specifications.
  • Design fixtures, tooling, or experimental parts to meet special engineering needs.
  • Dismantle machines or equipment, using hand tools or power tools to examine parts for defects and replace defective parts where needed.
  • Dispose of scrap or waste material in accordance with company policies and environmental regulations.
  • Establish work procedures for fabricating new structural products, using a variety of metalworking machines.
  • Evaluate experimental procedures, and recommend changes or modifications for improved efficiency and adaptability to setup and production.
  • Fit and assemble parts to make or repair machine tools.
  • Install experimental parts or assemblies, such as hydraulic systems, electrical wiring, lubricants, or batteries into machines or mechanisms.
  • Install repaired parts into equipment or install new equipment.
  • Lay out, measure, and mark metal stock to display placement of cuts.
  • Machine parts to specifications, using machine tools, such as lathes, milling machines, shapers, or grinders.
  • Maintain industrial machines, applying knowledge of mechanics, shop mathematics, metal properties, layout, and machining procedures.
  • Measure, examine, or test completed units to check for defects and ensure conformance to specifications, using precision instruments, such as micrometers.
  • Monitor the feed and speed of machines during the machining process.
  • Observe and listen to operating machines or equipment to diagnose machine malfunctions and to determine need for adjustments or repairs.
  • Operate equipment to verify operational efficiency.
  • Position and fasten work pieces.
  • Prepare working sketches for the illustration of product appearance.
  • Program computers or electronic instruments, such as numerically controlled machine tools.
  • Select the appropriate tools, machines, and materials to be used in preparation of machinery work.
  • Separate scrap waste and related materials for reuse, recycling, or disposal.
  • Set controls to regulate machining, or enter commands to retrieve, input, or edit computerized machine control media.
  • Set up or operate metalworking, brazing, heat-treating, welding, or cutting equipment.
  • Set up, adjust, and operate all of the basic machine tools and many specialized or advanced variation tools to perform precision machining operations.
  • Study sample parts, blueprints, drawings, and engineering information to determine methods and sequences of operations needed to fabricate products, and determine product dimensions and tolerances.
  • Support metalworking projects from planning and fabrication through assembly, inspection, and testing, using knowledge of machine functions, metal properties and mathematics.
  • Test experimental models under simulated operating conditions for purposes such as development, standardization, or feasibility of design.

Detailed Work Activities

  • adjust production equipment/machinery setup
  • advise clients or customers
  • confer with engineering, technical or manufacturing personnel
  • design tools or mechanical devices
  • determine tasks needed to complete machined products
  • examine products or work to verify conformance to specifications
  • fabricate, assemble, or disassemble manufactured products by hand
  • follow statistical process control procedures
  • identify base metals for welding
  • install equipment or attachments on machinery or related structures
  • lay out machining, welding or precision assembly projects
  • load or unload material or workpiece into machinery
  • maintain or repair industrial or related equipment/machinery
  • maintain welding machines or equipment
  • monitor production machinery/equipment operation to detect problems
  • move or fit heavy objects
  • operate metal or plastic fabricating equipment/machinery
  • perform safety inspections in manufacturing or industrial setting
  • program computer numerical controlled machines
  • read blueprints
  • read specifications
  • read technical drawings
  • recognize characteristics of alloys
  • recognize characteristics of metals
  • set up and operate variety of machine tools
  • set up computer numerical control machines
  • set up production equipment or machinery
  • solve machine tool problems
  • understand machine setup instructions
  • understand technical operating, service or repair manuals
  • use arc welding equipment
  • use drafting or mechanical drawing techniques
  • use hand or power tools
  • use knowledge of fire suppression methods in industrial emergencies
  • use knowledge of metric system
  • use machining practices
  • use non-destructive test equipment
  • use precision measuring tools or equipment
  • use robotics systems technology
  • use technical information in manufacturing or industrial activities
  • use x-ray or magnetic inspection techniques
  • weld together metal parts, components, or structures

Military Crosswalk Titles

  • Advanced Machinery Repairman (Navy - Enlisted)
  • Aircraft Metals Technology Apprentice (Air Force - Enlisted)
  • Aircraft Metals Technology Craftsman (Air Force - Enlisted)
  • Aircraft Metals Technology Helper (Air Force - Enlisted)
  • Aircraft Metals Technology Journeyman (Air Force - Enlisted)
  • Allied Trades Specialist (Army - Enlisted)
  • Machinery Repairman (Navy - Enlisted)
  • Machinery Repairman Basic (Navy - Enlisted)
  • Machinist (Army - Enlisted)
  • Machinist (Marine Corps - Enlisted)
  • NAMTS Inside Machinist (Navy - Enlisted)
  • NAMTS Outside Machinist (Navy - Enlisted)
  • NAMTS Sheetmetal Worker (Navy - Enlisted)

Apprenticeship Crosswalk Titles

  • Fixture Maker
  • Instrument Maker
  • Instrument-Maker and Repairer
  • Machinist
  • Machinist, Automotive
  • Machinist, Experimental
  • Machinist, Outside (Ship-Boat Manufacturing)
  • Maintenance Machinist
  • Rocket-Motor Mechanic
  • Test Technician

DOT Crosswalk Titles

  • Deck Engineer
  • Development Mechanic
  • Experimental Mechanic, Electrical
  • Fixture Maker
  • Fluid-Power Mechanic
  • Instrument Maker
  • Instrument-Maker And Repairer
  • Instrument-Maker Apprentice
  • Machinist
  • Machinist Apprentice
  • Machinist Apprentice, Automotive
  • Machinist Apprentice, Outside
  • Machinist, Automotive
  • Machinist, Experimental
  • Machinist, Outside
  • Maintenance Machinist
  • Rocket-Motor Mechanic
  • Test Technician