CNC MACHINIST

Reports to: Machining Manager/Manufacturing Manager

PRIMARY FUNCTION

To set up and operate conventional and/or Computer Numerical Controlled (CNC) machines/machining centers to machine metallic and nonmetallic parts.

ESSENTIAL FUNCTIONS

• Plans machining by studying work orders, blueprints, engineering plans, materials, specifications, orthographic drawings, reference planes, locations of surfaces, and machining parameters; interpreting geometric dimensions and tolerances (GD&T).
• Plans stock inventory by checking stock to determine amount available; anticipating needed stock; placing and expediting orders for stock; verifying receipt of stock.
• Programs mills and lathes by entering instructions, including zero and reference points; setting tool registers, offsets, compensation, and conditional switches; calculating requirements, including basic math, geometry, and trigonometry; proving part programs.
• Sets-up mills and lathes by installing and adjusting three- and four-jaw chucks, tools, attachments, collets, bushings, cams, gears, stops, and stock pushers; indicating vices; tramming heads.
• Loads feed mechanism by lifting stock into position.
• Verifies settings by measuring positions, first-run part, and sample workpieces; adhering to international standards.
• Maintains specifications by observing drilling, grooving, and cutting, including turning, facing, knurling and thread chasing operations; taking measurements; detecting malfunctions; troubleshooting processes; adjusting and reprogramming controls; sharpening and replacing worn tools; adhering to quality assurance procedures and processes.
• Maintains safe operations by adhering to safety procedures and regulations.
• Maintains equipment by completing preventive maintenance requirements; following manufacturer's instructions; troubleshooting malfunctions; calling for repairs.
• Maintains continuity among work shifts by documenting and communicating actions, irregularities, and continuing needs.
• Documents actions by completing production and quality logs.
• Updates job knowledge by participating in educational opportunities; reading technical publications.
• Accomplishes organization goals by accepting ownership for accomplishing new and different requests; exploring opportunities to add value to job accomplishments.
• Conceptual Skills, Process Improvement, Verbal Communication, Functional and Technical Skills, Controls and Instrumentation, Supply Management, Tooling, Coordination, Inventory Control, Attention to Detail, Judgment

TRAINING AND EXPERIENCE REQUIRED

• The following areas of expertise are required to be an effective Machinist:
  • Machine tool operation
  • CNC programming
  • Math skills, including knowledge of dimensional tolerances and GD&T
  • Precision measurement instruments
  • Reading and interpreting blueprints  
  • General Computer skills
  • Verbal and written communication skills 
• Vocational training, on the job training, and apprenticeships are all typical forms of formal training for a Machinist

WORKING CONDITIONS

• Machinists may be subject to the following:
  • High noise levels from machinery
  • Fumes, dust, vapors, mist 
  • Coolants, oils, cutting fluids, and other chemicals