Special characteristic

This topic has 2 replies, 3 voices, and was last updated 12 years, 2 months ago by Baker.

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October 30, 2008 at 1:15 pm #51231

Van Loon
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If we put a requirement regarding Ppk on the drawing, and we find parts not conforming to the tolerance in our incomming goods inspection, how should the supplier sort the parts ?
Jan
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October 30, 2008 at 1:25 pm #177235

Chris Seider
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First do an MSA, measurement system analysis, on their system and your system and do a comparison study between the two gage systems.
It’s possible your gage is wrong or their measurement system is wrong.
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October 30, 2008 at 1:33 pm #177236

Baker
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Suggest they sort by date, lot, or other logical grouping and provide mean and st dev for each lot. I would take a look at distribution type a a precaution.
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