CMM program qualification criteria
CMM program qualification criteria
(OP)
Does anyone have any tips on qualifying a CMM program for a particular part. I am NOT talking about the CMM hardware, or the CMM's computational software. I am more interested in something like a Gage R&R analysis. We currently have good repeatable results in measuring gage blocks, but poor results in measurement repeatability with a given part. I am looking for some criterial whereby the QA Department must qualify their CMM programs before using them on production parts.





RE: CMM program qualification criteria
What kind of parts are you measuring? We perform repeatability studies on our parts whenever we get new fixtures. We have found that problems with repeatability when running the programs tend to be issues with the fixtures and not the programs. We work with sheet metal, so there is always a balance between not enough constraint to have a repeatable measurement process and too much constraint so that variation is not seen.
That answer your question or are you asking more about the specifics of the process?
Dave
RE: CMM program qualification criteria
Regards
RE: CMM program qualification criteria