Could someone please tell me how is the best way to check the TIR on a tube appx. 4" OD X 30" lg. There is a conflict between indicator -vs- cmm ( Romer arm) eng. -vs- QA.
Could someone please tell me how is the best way to check the TIR on a tube appx. 4" OD X 30" lg. There is a conflict between indicator -vs- cmm ( Romer arm) eng. -vs- QA.
Thank You JW
Believe what the Indicator says, a CMM cant check "Total" runout.
The indicator is about 10,000 times better than that romer arm. You are VERY lucky if you can get correct values within 0.002" on that, more like 0.005" depending on the setup, etc.,
Could someone please tell me how is the best way to check the TIR on a tube appx. 4" OD X 30" lg. There is a conflict between indicator -vs- cmm ( Romer arm) eng. -vs- QA.
Thank You JW
Believe what the Indicator says, a CMM cant check "Total" runout.
The indicator is about 10,000 times better than that romer arm. You are VERY lucky if you can get correct values within 0.002" on that, more like 0.005" depending on the setup, etc.,
