K
Hi everybody.
I am considering a gauge R&R for a simple weight scale.
What makes it complicated is the nature of the measured feature.
The measured feature is the coating weight.
The way it is measured is as follow:
"Bright" uncoated samples are taken, marked and weighted on the scale.
Then they are placed in the infeed of the machine where they get sprayed with the coating and go through the internal bake oven to fix the coating.
The samples are taken at the exit of the oven.
Once they are "cold" enough, they get measured again on the same scale.
Weight is obtained by substracting before to after.
It sounds to me that the coating weight R&R is going to combine the variation of both before and after measurement and therefore be greater than what I would obtain by measuring "before samples" only.
The process is, I believe not capable, assumption that sequenced samples are going to have the same coating weight cannot be made.
Should I do a Gauge R&R for "dry" samples only and double the result ?
Any idea ?
Thanks !!!
I am considering a gauge R&R for a simple weight scale.
What makes it complicated is the nature of the measured feature.
The measured feature is the coating weight.
The way it is measured is as follow:
"Bright" uncoated samples are taken, marked and weighted on the scale.
Then they are placed in the infeed of the machine where they get sprayed with the coating and go through the internal bake oven to fix the coating.
The samples are taken at the exit of the oven.
Once they are "cold" enough, they get measured again on the same scale.
Weight is obtained by substracting before to after.
It sounds to me that the coating weight R&R is going to combine the variation of both before and after measurement and therefore be greater than what I would obtain by measuring "before samples" only.
The process is, I believe not capable, assumption that sequenced samples are going to have the same coating weight cannot be made.
Should I do a Gauge R&R for "dry" samples only and double the result ?
Any idea ?
Thanks !!!
