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Supplier - high scrap / purchased product

Discussion in 'ISO 9001:2015 - Quality Management Systems' started by Carlee Gruizinga, Mar 19, 2025.

  1. Carlee Gruizinga

    Carlee Gruizinga Member

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    Hello!

    We are having an issue with one of our suppliers and I was wondering if there was something within the ISO standard that could give us assistance with navigating.

    We purchase components from supplier A then provide to supplier B for machining. Due to the excessive scrap at supplier B we are forced to purchase extra parts from supplier A. At this point in time we are being held responsible for the total cost even though the issue is high scrap at supplier B.

    Is there anything in the ISO standard that would cause supplier B to take more ownership/responsibility of the high scrap issue?

    Thank you!
    -Carlee
     
    Carlee Gruizinga, Mar 19, 2025
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  2. Miner

    Miner Moderator Staff Member

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    There is nothing in ISO to help with that. That needs to be in your contract with supplier B. Depending on your leverage over supplier B, you could try withholding that cost from your payments, but supplier B could stop supplying you or even sue for payment.
     
    Last edited: Mar 19, 2025
    Miner, Mar 19, 2025
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  3. yodon

    yodon Well-Known Member

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    @Miner is quite right that there's nothing in ISO that will help you, but what are you doing? Are you making B aware of the impact and working with them to see if scrap can be reduced? If they are unresponsive / don't care, can you not find another supplier to do the machining?
     
    yodon, Mar 19, 2025
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  4. Andy Nichols

    Andy Nichols Moderator Staff Member

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    In my experience this is common with sand castings. Is this the issue?

    If it is - or something similar - a discussion about the process and how it can be changed - in casting, gating the feed stock in a different position etc can alleviate porosity, for example. The casting supplier, may not have given your company the feedback because they may not know, for example, what the machining drawing looks like and simply put runners in based on their experience. Often, getting all three parties in the room to talk about how to improve things can be foundational. Or, simply buy the finished casting from supplier A or B - but that may just get them to kick the can down the road and hike the price.
     
    Last edited: Mar 20, 2025
    Andy Nichols, Mar 19, 2025
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  5. Carlee Gruizinga

    Carlee Gruizinga Member

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    Thank you for the response!! Yes we have been having weekly meetings with supplier B to work on their quality issues. It is hard to say if they are unresponsive/don't care or if it is capability.

    Haha yes this is related to castings - supplier B handles the machining work on the castings. Thanks for the feedback!!
     
    Carlee Gruizinga, Mar 20, 2025
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    Andy Nichols likes this.
  6. Andy Nichols

    Andy Nichols Moderator Staff Member

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    It's not likely to do much for them. The issue is with the casting quality!
     
    Andy Nichols, Mar 20, 2025
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  7. Miner

    Miner Moderator Staff Member

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    So what are the quality issues? Are they exposing porosity as Andy is assuming, or is it surface finish or dimensional issues with the machined surfaces? You haven't said and are making us guess.
     
    Miner, Mar 20, 2025
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