1. Because CPK of the OD roundness is not good, so please send me the data comparison.
2. Please send me data by excel file, we need to calculate again to confirm Cpk.
3. Why does the data comparison between 2 machines are not same?
And Cpk of new machine is worse than old machine?
It's very difficult to explain and get approve for new machine.
Please confirm again and re-send me the data.