M
mwohlg
Hi all,
I've done some searching in the forums for information about the RPN breakpoint calculations, the section of the (somewhat common) GR&R form that evaluates whether the gage system is acceptable for use when the R&R is between 10% & 30%. I'm asking because no calculation like this is in the AIAG MSA book, it only says "may be acceptable based upon importance of application, cost of measurement device, cost of repair, etc." (page 77 MSA 3rd edition). So far I've only found one poster who attributed the breakpoint calculations to Delphi. Does anyone know anything else about this?
If you're curious, I've got a caliper being used for some part quality inspections with a GR&R of 11.73% and a breakpoint of 9.39, well below the cutoff of 37.8, but my customer won't accept without an improvement plan for the gage.
Thanks,
Mike
I've done some searching in the forums for information about the RPN breakpoint calculations, the section of the (somewhat common) GR&R form that evaluates whether the gage system is acceptable for use when the R&R is between 10% & 30%. I'm asking because no calculation like this is in the AIAG MSA book, it only says "may be acceptable based upon importance of application, cost of measurement device, cost of repair, etc." (page 77 MSA 3rd edition). So far I've only found one poster who attributed the breakpoint calculations to Delphi. Does anyone know anything else about this?
If you're curious, I've got a caliper being used for some part quality inspections with a GR&R of 11.73% and a breakpoint of 9.39, well below the cutoff of 37.8, but my customer won't accept without an improvement plan for the gage.
Thanks,
Mike