S
An interesting discusion came uip the other day when I was checking a PPAP / PSW submission.
For a SC (Significant Characteristic) the GR&R result was 10%. In production this dimension is inspected 100%. It is a one sided diamension. 0.1mm. The control plan and work instructions for the inspection descibed the actual spec for aceptance or rejection. example =<0.1 ok >0.1 NG.
The discussion was based on should the GR&R result be reflected.
example - spec 0.1mm max. GR&R 10%. Therfore for inspection purposes the acceptance criteria should be 0.1mm - (10% of 0.1) = 0.09. This would then ensure no parts outside of the spec be accepted.
What do you think? - has anybody used the GR&R result this way before.
Cheers
For a SC (Significant Characteristic) the GR&R result was 10%. In production this dimension is inspected 100%. It is a one sided diamension. 0.1mm. The control plan and work instructions for the inspection descibed the actual spec for aceptance or rejection. example =<0.1 ok >0.1 NG.
The discussion was based on should the GR&R result be reflected.
example - spec 0.1mm max. GR&R 10%. Therfore for inspection purposes the acceptance criteria should be 0.1mm - (10% of 0.1) = 0.09. This would then ensure no parts outside of the spec be accepted.
What do you think? - has anybody used the GR&R result this way before.
Cheers