How to justify this High %Tolerance

tjaplayer

Registered
I ran a GRR with 29 parts * 3 Operators * 3 times a part = 261 measurements.
Im trying to qualify the measurement program on a part that is malleable and easily influenced.

How to justify this High %Tolerance

How to justify this High %Tolerance

We have a cap at 30% but 10-30 needs a justification that I cant really explain.
Any help on explaining the metrics would be appreciated.
 

Miner

Forum Moderator
Leader
Admin
You can make some improvement by studying the repeatability issues experienced by Operator AR (see R chart by Operator). Your justification is what you stated about the parts being malleable and easily influenced. You did not state the type of gaging used. With malleable parts, have you looked at vision type gaging?
 

Ninja

Looking for Reality
Trusted Information Resource
...or oversizing the gage contact area so that pressure is minimized/reduced?
 
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