CNC Machinist

POSITION SUMMARY

The CNC Machinist sets up and operates CNC machining centers to manufacture aluminum tooling and trim composite parts in accordance with approved drawings, specifications, work instructions, and customer requirements. This position selects and loads approved CNC programs, confirms the correct program and revision, installs tooling and fixtures, establishes approved machine and tool offsets, monitors machining operations, and performs dimensional inspections using precision measuring instruments. The CNC Machinist is responsible for producing conforming work safely and efficiently while maintaining accurate production documentation and supporting quality, productivity, and schedule requirements.

DUTIES AND RESPONSIBILITIES

CNC MACHINING

• Set up and operate assigned 3-, 4-, and 5-axis CNC machining centers, based on training and qualification, to machine aluminum tooling and trim composite parts to customer specifications.
• Select and load the correct approved CNC program for the assigned Manufacturing Order (MO).
• Confirm the CNC program and revision number before beginning machining operations.

• Accurately record labor, quantities, operations completed, inspection results, material usage, scrap, and other required information on Manufacturing Orders (MOs).
• Measure, mark, and scribe dimensions and reference points to lay out stock for machining.
• Load and secure parts, fixtures, and cutting tools in accordance with approved setup instructions and workholding requirements.
• Inspect, replace and adjust cutting tools and approved tool offsets as necessary to maintain dimensional and quality requirements.
• Perform routine operator-level cleaning, inspection, lubrication, and preventive maintenance as assigned, and promptly report equipment damage, unusual conditions, or needed repairs.
• Perform other duties as assigned.
• Operate CNC equipment in accordance with established safety procedures, work instructions, and manufacturer requirements.
• Maintain clean and orderly machines and work areas and promptly remove chips, dust, debris, and potential foreign-object debris (FOD).

QUALITY AND CONTINUOUS IMPROVEMENT

• Perform in-process and final dimensional inspections using calipers, micrometers, gauges, and other precision measuring instruments.
• Verify first-piece and subsequent parts against approved drawings, specifications, work instructions and inspection requirements.
• Interpret engineering drawings, tolerances, and GD&T requirements applicable to assigned work.
• Identify and report nonconforming material, tooling problems, program errors, and process deviations.
• Complete required manufacturing, inspection, traceability, and production documentation accurately and promptly.
• Follow applicable AS9100 procedures, customer requirements, and document-control practices.
• Handle composite parts and aluminum tooling in a manner that prevents damage, contamination, and foreign-object debris.