Gauge R&R Studies

Hello all,

Say a fixture comes with 2 locators, an RFS locator and MMC locator.

Someone at my shop is telling me I need to do a GR&R on the MMC stab pin, but I feel like it's a waste of time. Our process is to use the RFS pins for fixture checks on the floor.

Does your company require a GR&R Study for both the RFS and MMC Stab pins? Seems a little silly to me.

Thanks

Parents

Matthew D. Hoedeman over 1 year ago

it IS a waste of time to do an R&R using an MMC pin as those DO NOT 'locate' the part on the fixture, those are to allow the OPERATOR to change the location of the part to try to balance the entire part into tolerance.
Cancel
Vote Up 0 Vote Down

Sign in to reply

Cancel

Reply

Matthew D. Hoedeman over 1 year ago

it IS a waste of time to do an R&R using an MMC pin as those DO NOT 'locate' the part on the fixture, those are to allow the OPERATOR to change the location of the part to try to balance the entire part into tolerance.
Cancel
Vote Up 0 Vote Down

Sign in to reply

Cancel

Children

Smasherofprobes over 1 year ago in reply to Matthew D. Hoedeman

This was my understanding, thanks for clarifying Matthew. I ended up doing the study anyways to show them that it's a waste of time. Our range went from .02mm to .2mm
Cancel
Vote Up 0 Vote Down

Sign in to reply

Cancel
Matthew D. Hoedeman over 1 year ago in reply to Matthew D. Hoedeman

if they insisted on something like that to me, I would have intentionally done everything I could to make it fail. pull to the front on both pins for one part, push to the rear for another, pull one end, push the other for the next, and push/pull for the next, etc.
Cancel
Vote Up 0 Vote Down

Sign in to reply

Cancel