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Topic What is PPAP?

What is PPAP?

Home Forums Old Forums General What is PPAP?

This topic contains 8 replies, has 7 voices, and was last updated by  Manuel 9 years, 1 month ago.

Viewing 9 posts - 1 through 9 (of 9 total)
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  • #150613

    And now for my real question….What does a PPAP approval signify?I enter into an agreement with my supplier. The agreement is a PO/annual volume type thing. And the criteria for meeting the agreement is a print/math model and an SOR.SO… When they submit PPAP and meet the AGREEMENT, they should get full approval. Right? If the part doesn’t work, but meets the agreement then I have a design problem.This is beginning to convolute at my company in that we are starting to say “Better not PPAP that until we try this ….” which while is further validation of the part through trials, etc, it is NOT described with the agreement.What is happening is nobody is willing to test a part that is not PPAP’d (because they cannot then sell the unit), but nobody is willing to PPAP a part that isn’t tested. And the machine is slowing down.Anyone else face this? What did you do?

    #150616

    Alderman
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    Rank - Aluminum

    PPAP means Pre Production Audit Process
    What usually happens during this process is verification that the supplier can produce this part to quality standards and has the capacity to meet the demand. You must first manufacture the part before you can test it. If testing is required or needed, that becomes part of this process. I do not know what type of parts you are making or in what context but this is generally what PPAP means… hope this helps.

    #150617

    Alderman
    Participant
    Reputation - 0
    Rank - Aluminum

    After reading your post again it seems there is some confusion as to who does what.. PPAP is the approval process to “QUALIFY” said parts or part. Once this is completed than that means the customer “accepts” and agrees that the vendor can produce said part to the satisfaction and specifications engineered.

    #150621

    I thought PPAP was Production Part Approval Process.

    #150624

     
    Production Part Approval Process

    From Wikixxxx

     
    The Production Part Approval Process (PPAP) is used in the automotive supply chain to establish confidence in component suppliers and their production processes, by demonstrating that:-

    “….all customer engineering design record and specification requirements are properly understood by the supplier and that the process has the potential to produce product consistently meeting these requirements during an actual production run at the quoted production rate.” Version 4 March 1st 2006
     

    #150627

    Taylor
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    Rank - Aluminum

    ncwalker
    Yes faced this many times, Textron was the worst. PPAP should not be done until final engineering approval of design is given. Engineering run off and design changes all need to be completed and final ok for production released before PPAP is completed.
    So to answer your question yes, if you have given approval to run PPAP and accepted and the parts don’t work, and you have a design issue man your just burned for lack of better word I cant use on the forum.
    It sounds like the definition of PPAP is misleading at your place.
    Bad Place to be

    #150633

    I agree with Chad.  Your development testing should have been done prior to PPAP.  As far as you being in hot water, it depends on who controls the design.  If you are simply making to print, the customer is responsible for introducing the design fixes.  If you are, then the onus is on you.  The problem you can run into is when you run into the grey area of determining whether a problem results from a process (and therefore supplier) issue or a design issue.
    Think of the PPAP as the gate that leads to production.  If you don’t have development testing done you shouldn’t be walking through the gate.

    #150648

    Alderman
    Participant
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    Rank - Aluminum

    We used to call it Pre Production,(I thought) but it has been over 10 years since working in the Automotive industry. I guess it was something else. Although it has the same definition, thanks for the clarification.

    #150651

    There is a lot of detail about PPAP (Production Part Approval Process) at http://www.statsxpress.us
    With PPAP you have to provide evidence that the product characteristics meet customer specification limits, that is, capability, performance, stability, normality, …, based on a significant sample size.

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