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Cp and Cpk for little groups

Discussion in 'SPC - Statistical Process Control' started by Future engineer, Dec 30, 2020.

  1. Bev D

    Bev D Moderator Staff Member

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    OK I get that you want to complete your engineering project and ‘pass’ your intern assignment. But the real question here is what is the goal of your project? What is your project trying to accomplish?
     
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  2. Future engineer

    Future engineer Member

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    You know, sometimes it's hard to understand that the way which was pointed by somebody who you trust, is completely wrong. And in fact I felt really helpless and I did't know what should I look for... In that moment I KNOW what to look for but I can't find.

    In theory - I' looking for a way to optimalisation one process in my company. In practice - it's art for art because my company tutor told me that they aren't going to change anything because it's too expensive. Quality engineering isn't my speciality but the covid pandemy froze many projects and plans in the company. But the company assigned a contract with my university and runs some engineering projects...
     
    Last edited: Jan 13, 2021
  3. Andy Nichols

    Andy Nichols Moderator Staff Member

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    That may be true, however, if the right project is chosen, it will save money. Did your tutor consider that? If not, change tutor...
     
  4. Bev D

    Bev D Moderator Staff Member

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    And even if they don’t make changes you can still perform a valid analysis that should be acceptable for your project
     
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  5. Bev D

    Bev D Moderator Staff Member

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    So plot your data in sequential order of production against the spec limits. Use individual charts for each part/characteristic/machine so you are looking at unique processes. Then look a the graphs and think about what they are telling you. It’s that simple.
     
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