W
wroosmalen
I performed a GRR on 5 lines of the same configuration. Intercepted 10 products on 1 line and measured them twice on each line with a measurement system of the same type. So reproducibility describes the variance added by the measurement systems on different lines and not by different operators. The measurement is fully automatic and with no operator influence.
I think it only makes sense to look at the "to process variation" value to see if the data can be used for SPC over the 5 lines. Does the "to tolerance" value makes sense having the reproducibility of different machines? I can use the data to perform a type-3 study resulting in 0 reproducibility and only looking at the repeatability. I think this value would make more sense to make conclusions about the ability to separate right and wrong products.
I think it only makes sense to look at the "to process variation" value to see if the data can be used for SPC over the 5 lines. Does the "to tolerance" value makes sense having the reproducibility of different machines? I can use the data to perform a type-3 study resulting in 0 reproducibility and only looking at the repeatability. I think this value would make more sense to make conclusions about the ability to separate right and wrong products.