hello every one,

i am an enginnering student , i want to know what is the Cmk, and wht is the difference between the R&R study and the Cmk? because i am doing my report for my school, i am completely lost.

Thanks in advance
Regards, kim

I am not a guru, but Cmk is machine capability, Cpk is process capability. Can't tell you what all the formulas are (at least not without digging through a bunch of old paperwork), but that is how the differences were explained to me.

Kim,

I am not familiar with the term 'Cmk'? Where did you see this term and how was it used? Could it possible have been 'Cpk'? If so, I can help explain the relationship of Cpk and R&R Studies.

Try the following links for explantions of capability indices
www.qualityadvisor.com
and
www.xberry.fsnet.co.uk

For a good thread on Cp, Cpk, Ppk, etc., see: http://Elsmar.com/Forums/showthread.php?t=1994