Chapter 22
Dimensioning and Tolerancing of Gages


Readers will learn;

1. To design, dimension and tolerance GO gages for MMC, NOGO gages for LMC and Functional gages for geometric tolerances per ASME Y14.43-2003.

2. How to calculate whether the gage is likely to accept borderline out-of-tolerance parts, reject borderline parts that are in-tolerance, or if the possibility exists that the gage might do either.

3. The ramifications of using different modifiers (MMC, LMC or RFS implied) on gage tolerances.

4. The differences between Absolute, Practical Absolute, Optimistic and Tolerant gages and which policies are preferred per ASME Y 14.43.

5. The steps necessary in writing a Dimensional Inspection Plan

  • -Dimensioning and Tolerancing of Gages per ASME Y14.43-2003
  • -GO Gages
  • -NOGO Gages
  • -Functional Gages
  • -Calculating to Determine Good Parts Rejected or Bad Parts Accepted
  • -Steps in the Development of a Dimensional Inspection Plan

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