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I have been attempting to get good results for a Gage R&R but without success. I am using Mitutoyo Uni-Micrometer digital resolution .00005. These are micrometers that can use either a flat anvil or a pin. I am measuring the OD of a .2181 (.2195 / .2165) rod or bar to complicate this and the reason for using this type of gage is this rod is bent to a 4.890 radius and also shot peened. I have to measure on the inside of the radius to confirm the diameter has remained in tolerance after we bend it to the specified radius. I have marked a reference point so that the inspectors will measure in the same are of the rod and have given instructions to use the friction thimble to tighten the gage.
I have performed this R&R twice the first time we had a 90.95 then with more instruction we had 73.68. This product is for a medical device implant not automotive but I would like to get the results to less than 30%. That could be a tall order. I could provide a copy of the R&R and would appreciate any comments or advice you might have.
I have performed this R&R twice the first time we had a 90.95 then with more instruction we had 73.68. This product is for a medical device implant not automotive but I would like to get the results to less than 30%. That could be a tall order. I could provide a copy of the R&R and would appreciate any comments or advice you might have.