It's those d*** people
Andrews said:
Intent of R and R study is to find out whether there is any variation in the method of checking of a particular parameter using a particular instument / gauge.
How many of you agree with this? If so why should we check R and R for gauges like plug gauges where there is not going to be any variation in the method of checking ? Thanks,Sonu
Sonu
I have said the exact same thing myself whwn faced with this requirement, so I thought I'd just go ahead and prove how stupid this requirement was.
So far I have RARELY had an attribute gage pass a "good" R&R test. For example using real shop floor operators, hiding previous results, samples just at the edge of fail, etc.
Things I have seen fail...leak tester, thread gage, and amazingly a simple plug gage.
People always astound me with their ability to use even a simple gage incorrectly in the most amazing, creative and unexpected manner.
Why not try what used to be called the short method attribute, 10 parts, 3 people, 3 repeats. If they all agree waste no more of your time....and can we hire some of your people?