The part is required to be 15.5000” plus/minus .0010” at 68° F. Does the part meet the tolerance?
You are measuring a 15.5000” diameter Aluminum cylinder with a micrometer. A temperature probe is placed on the part while in the machine and gives a reading of 77° F. The part is required to be 15.5000” plus/minus .0010” at 68° F. The part diameter measures 15.5006” in the machine. Does the part meet the tolerance, and how close to the nominal diameter is the part at 68° F?
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With aluminum being a softer metal, and it being 9 degrees warmer the tolerance seems reasonable because of the extra 6 ten-thousandths left on the part.