CMM Operator

Job Description (JD) – CMM OperatorPosition: CMM Operator

Department: Quality Control

Location: Shop Floor / QC Lab

Reporting To: Quality Manager / QC Head

Role PurposeTo perform accurate dimensional inspection of components, fixtures, and assemblies using Coordinate Measuring Machine (CMM), ensuring compliance with engineering drawings, GD&T standards, and customer quality requirements.

• Key ResponsibilitiesOperate CMM machines (Manual / CNC) for inspection of machined parts, jigs, fixtures, and BIW components.
• Program and execute inspection routines using CMM software (PolyWorks ).
• Interpret engineering drawings, GD&T symbols, tolerance stack-ups, and customer specifications.
• Conduct first article inspection (FAI), in-process inspection, and final inspection.
• Prepare and maintain CMM inspection reports, dimensional layouts, and deviation reports.
• Verify critical features such as flatness, perpendicularity, concentricity, profile, and positional tolerances.
• Ensure proper fixturing and alignment of components on CMM before measurement.
• Perform routine calibration checks and basic maintenance of CMM probes and accessories.
• Coordinate with Production, Design, and Engineering teams for dimensional clarifications and corrective actions.
• Support customer inspections, audits, and PPAP submissions as required.
• Maintain traceability and comply with ISO 9001:2015 quality standards.
• Follow safety, housekeeping, and 5S practices in QC area.
• Skills & CompetenciesStrong knowledge of GD&T as per ISO / ASME standards.
• Hands-on experience with CMM programming and operation.
• Ability to read and understand complex manufacturing drawings.
• Familiarity with fixture inspection and automotive standards (NAAMS / BIW preferred).
• Proficiency in MS Excel for report preparation.
• Attention to detail and analytical thinking.
• Good communication skills for inter-department coordination.
• Educational QualificationDiploma / ITI / BE / BTech in Mechanical Engineering or equivalent.
• Certified CMM training is an added advantage.
• Experience Required2 to 6 years of experience in CMM operation within precision manufacturing / tool room / automotive fixture industry.
• Experience with aluminium and steel machined components preferred.
• Key Performance Indicators (KPIs)Accuracy and repeatability of inspection results.
• Timely completion of inspection reports.
• Reduction in dimensional rejections and rework.
• Compliance with customer and audit requirements.
• Working ConditionsShop floor and QC lab environment.
• May require extended hours during customer audits or critical project deliveries.