P-value and interpretation of ANOVA Gage R & R

R

rdanis

#11
Miner,

So, is that mean the previous GRR only applicable for
product control not for process control?

From the latest one, I got below surprising result,:
Total GR&R: 99%
Repeatability: 45%
Reproducibility: 89%
Part to Part: 10%

Total GR&R, Repeatability and Reproducibility are > 30%,
but since it's a single side spec, and I can't calculate
the actual %P/T,
Can I conclude that mean my measurement system
(or my gage) is really bad? :(
 
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Miner

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Admin
#12
It is definitely unacceptable for process control. Whether it is acceptable for inspection to tolerance depends on both your tolerance and where your process is targeted.

Your measurement variation is 6s = 0.21454 (or 3s = 0.10727). If you can guard band your tolerance by 0.10727, then you could still use this gauge.
 
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