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who willl decide RPN in FMEA

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  • #37204

    NIKIL
    Participant

    i am nikil, i am doing PFMEA right now and working for an Automotive industry. i need two queries. 1. what is zero Kilo meter effect in FMEA and 2. HOW and who will decide RPN(Risk Priority Number) in FMEA

    0
    #109056

    Holly
    Participant

    Hi,
    We will work in this way:
    First, we will form a team with persons who knows the process very well from manufacturing, engineering and maintenance and also FMEAconsultant who will give some guidances for team.
    RPN=SevXOccXDet
    We will prepare relevant rating table for above 3 rating indicators and this should be approved by the team. Then we will collect relevant data such as defect data, breakdown record and relevant information. Based on these data and information and experience of the team, team will finally decide what number should be put for ahove 3 rating indicators.         
    Hope this can help.
     
     

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    #109393

    BM
    Participant

    people who are actually working on the process (i.e operators) wre the best jugge in deciding the severity whereas the occurance and probability can be worked ot from previous data.

    0
    #109460

    jediblackbelt
    Participant

    1.  Never heard of it.
    2.  Follow the AIAG guidelines and/or customer specifics for deciding how to rate your PFMEA.  Nobody “decides” what your RPN is a calculated number based on the Severity, Occurance, Detection.  Your Severity is based on (obviously) how sever the effect is if it happens.  In the automotive world you aren’t allowed much freedom to decide your ratings like you would using the tool in other ways – they pretty much decide it for you.  A lot of times you will need to link your PFMEA back to the DFMEA for a product.  If your DFMEA has a severity of 10 for something and you can get that by altering your process then your PFMEA will get a 10.  All your documents need to be linked from your DFMEA to your PFMEA to your flow chart to your control plan.
    Most of the time your customer will review your PFMEA during a launch review or especially on your first defect that is shipped into their plant.  The first question any good IQ manager at an automotive plant will ask during a problem you shipped them is “Have you reviewed your PFMEA and control plan?”  Be prepared… and may the force be with you….

    0
    #109461

    jediblackbelt
    Participant

    1.  Never heard of it.
    2.  Follow the AIAG guidelines and/or customer specifics for deciding how to rate your PFMEA.  Nobody “decides” what your RPN is a calculated number based on the Severity, Occurance, Detection.  Your Severity is based on (obviously) how sever the effect is if it happens.  In the automotive world you aren’t allowed much freedom to decide your ratings like you would using the tool in other ways – they pretty much decide it for you.  A lot of times you will need to link your PFMEA back to the DFMEA for a product.  If your DFMEA has a severity of 10 for something and you can get that by altering your process then your PFMEA will get a 10.  All your documents need to be linked from your DFMEA to your PFMEA to your flow chart to your control plan.
    Most of the time your customer will review your PFMEA during a launch review or especially on your first defect that is shipped into their plant.  The first question any good IQ manager at an automotive plant will ask during a problem you shipped them is “Have you reviewed your PFMEA and control plan?”  Be prepared… and may the force be with you….

    0
    #109464

    Gaurav Chauhan
    Participant

    One thing to ensure that u get correct RPN number would be to follow the RPN scale vis a vis check the data for each related point…
    Gaurav

    0
    #109757

    Pasi
    Participant

    Refer AIAG – FMEA 3rd edition for complete answer.

    0
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