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Effects of Temperature on Gage Repeatability & Reproducibility - May/June 1992

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Archive > 1992 > May/June 1992 > Effects of Temperature on Gage Repeatability & Reproducibility

The article "Effects of Temperature on Gage Repeatability & Reproducibility" appeared in the May/June 1992 issue of Gear Technology.

Summary
Temperature Induced Dimensional Changes Temperature causes various materials to change size at different rate, known as their Coefficients of Expansion (COE). The effects of this phenomenon on precision dimensional measurements are continuous and costly to industry. Precautions can be taken to allow parts and gages to temperature stabilize before conducting gage R & R studies, but the fact remains that on the shop floor temperatures vary all the time. The slow pace at which industry has accepted this reality probably has to do with the subtlety of these tiny size variations and our inability to sense gradual, but significant temperature changes.

Keywords
gages, gage repeatability, GR&R, inspection, measurement

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