SPC-Chapt er 5

By Eric Martin,2014-04-01 10:02
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Sampling Suppose we are manufacturing pen caps. We make about 6,000 per hour. There are many dimensions we must control. We have to control the length of the cap, the inner diameter or the hole, tapering, thickness, flash, no-fill, and so on. It is impossible for us to check every characteristic of all 6,000 parts per hour. We could try to measure just the inner diameter..

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