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How to Conduct Process Capability Studies

Process capability studies are an important tool for quality control. This type of study is an important part of statistical quality control (SPC). By using this method, we can find out how much any specimens are deviating from the specifications.

  1. 1
    Select a candidate for the process capability study.

    Conduct Process Capability Studies Step 1.jpg
  2. 2
    Understand the process parameters well, so that you are comfortable with the process and you know the critical parameter for the process.

    Conduct Process Capability Studies Step 2.jpg
  3. 3
    Check the upper and lower specification limits for the critical parameter.

    Conduct Process Capability Studies Step 3.jpg
  4. 4
    Calculate the value of process capability indices (which are CP and CPK). If the value of this is one, the specimens are just within the specification limits. If the value is less than one, it means that some parts are not following the specifications. If the value is greater than one, they are following the specifications well.

    Conduct Process Capability Studies Step 4.jpg


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Article Info

Categories:
Management Skills

Edited by Jack Herrick, James Quirk, Ben Rubenstein, Sondra C and 3 others

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