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Sigma value to use in RSS stack for supplier using 100% inspection

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  • #254641

    rwq3rd
    Participant

    Our group does RSS variation stacks to simulate gaps and flush conditions we may see during assembly. We usually use a Cpk of 1.33 for our suppliers. Sometimes we’ll have a supplier that cannot meet the 1.33 and will do 100% inspection to ensure good parts.
    My question is what should we now use in the RSS stack for Cpk to predict what we will see in the final product?

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    #254674

    Strayer
    Participant

    Can you assume that a supplier that performs 100% inspections delivers zero defectives? Of course not. My inclination is that they should not be treated differently from any other supplier. But I’m wondering why you asked this question.

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