Cnc Milling Operator

Role & responsibilities

1. Machine Setup

• Read and interpret engineering drawings, blueprints, and work instructions.
• Select appropriate tooling, inserts, work holding devices, and cutting parameters.
• Load programs into the CNC lathe/turning center.
• Set zero points, tool offsets, and work offsets.
• Perform machine warm-up and calibration procedures.
  

2. Operating CNC Turning Machines

• Run CNC turning machines (lathes) safely and efficiently.
• Monitor machine operation, cutting performance, and tool wear.
• Adjust feed rates, spindle speeds, and tool paths as needed.
• Change tools and inserts when required.
• Ensure continuous production while preventing downtime.
  

3. Quality Inspection

• Use measuring instruments such as calipers, micrometers, bore gauges, height gauges, and surface finish testers.
• Perform first-article inspection and in-process checks.
• Verify that parts meet dimensional tolerances and surface finish requirements.
• Document inspection results and identify any non-conformance.
  

4. Maintenance and Troubleshooting

• Perform routine preventive maintenance (cleaning, lubrication, coolant checks)
• Troubleshoot machine alarms, tool breakages, and dimensional inaccuracies.
• Report mechanical issues to maintenance or supervisors.
• Keep the machine and work area clean and organized (5S practices).
  

5. Production and Documentation

• Record daily production data, part counts, scrap, and downtime.
• Follow job travelers, work orders, and production schedules.
• Maintain proper documentation for quality systems (ISO/AS9100 if applicable).
• Follow company procedures for traceability and material handling.
  

6. Safety Responsibilities

• Follow all machine safety protocols and use PPE.
• Understand emergency stop procedures and safe loading/unloading practices.
• Avoid unsafe behaviors such as reaching into a moving machine.
• Report hazards and near-misses promptly.
  

7. Collaboration and Communication

• Work with engineers, programmers, and quality personnel for problem-solving.
• Provide feedback on tooling performance and machining improvements.
• Assist in training new operators when required.
  

Optional (Depending on Experience Level)

Advanced Operator / Setter Responsibilities

• Edit minor CNC programs (G-code adjustments).
• Optimize cutting parameters for productivity and tool life.
• Assist with complex setups and multi-axis turning centers.
• Knowledge of FANUC, Siemens, Mazak, or Haas controls.