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relation between process capability index and tolerance

Discussion in 'Capability - Process, Machine, Gage …' started by kedar, Apr 3, 2016.

  1. kedar

    kedar Member

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    dear freinds

    i want to know about relation between "relation between process capability index and tolerance".

    what i mean to say is PC index=1, if we use 100% tolerance.

    kedar
     
    kedar, Apr 3, 2016
    #1
  2. Bev D

    Bev D Moderator Staff Member

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    If I am understanding you correctly, the Cp index will be 1 if the process spread of mean + 3SD = tolerance range (upper spec - lower spec)
    the Cpk index takes into account the actual location of the process average...the relationship is contained in the formulas
     
    Bev D, Apr 3, 2016
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  3. kedar

    kedar Member

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    Yes, You are right.Please help
     
    kedar, Apr 4, 2016
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  4. Miner

    Miner Moderator Staff Member

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    What help do you need beyond Bev's explanation?
     
    Miner, Apr 4, 2016
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    Bev D likes this.