My first GR&R, comments appreciated

S

sweJAR

#1
Hi
I'm about to conduct my first GR&R study. Been reading many useful post in this forum but I'd like to get some comments on my upcoming study, since I'm new to this.

I'll be using a measuring microscope to take measurements on a component consisting of a number of octagonal cells in a honeycomb-like pattern. 6 measurement coordinates(in 3D) are taken on the edges of the cell. These points will then be used to calculate 2 circular diameters of one cell, which are subject to a given tolerance.

Out of 25 cells in each component I've selected 7 with differing configuration. This means that 42 points are measured but I will have only 14 parts in the GR&R sheet.
My idea was to have 3 appraisers performing only 2 trials since I have more than 10 parts.

Could I also reduce the number of appraisers to 2?
Should each trial be performed on 2 different components or is it enough to start the second trial from scratch using the same component?

Any comments on this is much appreciated.

Regards,
Joacim
 
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D

debyang

#3
Since you have 14 parts, it will satisfy AIAG MSA's request(at least 15 R's for A and R study) with 2 operators (that makes 28 R's.)

Repeat measurements on the same component is supposed to be the right one.
 
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