Can I Assess Capability on Conventional Machinery?

Six Sigma – iSixSigma Forums General Forums Tools & Templates Can I Assess Capability on Conventional Machinery?

This topic contains 1 reply, has 2 voices, and was last updated by  Chris Seider 9 months, 2 weeks ago.

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    Hi all, I am new to the site and a fairly new Lean Six Sigma Black Belt.
    I have a question for the community if anyone can help. I have been asked to conduct a capability study on a conventional (hand operated) lathe. Is this possible and is it performed in the same way as a CNC machine with little input from the operator other than setup. If you imagine an operator on a CNC machine, he would programme the MC for the part and press go. With a conventional machine all cuts to the metal are determined by the operators input. I guess what I am saying is the machine may be capable but is still not producing good parts due to the operator. Any advice would be greatly appreciated.


    Chris Seider

    Have you considered your gage’s ability to measure yet?

    Anyways, assuming you have more than one operator or one machine, I’d randomly capture parts across some of the factors, record the factors along with your measurements, and then do process capability and see if you find greatness or opportunities to improve.

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