GD&T Inspection Planning | Quality Interview | Skill-Lync Resources
Hard Design & CAD GD&T

How would you create an inspection plan for a complex GD&T callout with profile tolerance, datum targets, and simultaneous requirements?

Answer

Creating the inspection plan involves: 1) Establish datum reference frame using datum targets on CMM with appropriate contact elements, 2) Measure true profile surface against CAD nominal with tolerance zone boundaries, 3) For simultaneous requirements (SIM REQT), verify all features in single setup maintaining datum frame, 4) Apply appropriate measurement uncertainty budgets, 5) Document probe qualification and part alignment procedures, 6) Consider functional gauge design as an alternative for production verification. Report should include actual deviations, tolerance zone boundaries, and capability statistics.

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