W
I want to perform a ‘valid’ MSA on our hardness tester to satisfy a customer who is requiring hardness Cpk on the PPAP for a part we machine & have heat treated by an out side supplier.
The more I search and read, the more confused I become.
The customer’s specification for the part is 86 – 89 HR15n.
I can select between a pre-load of 3 or 10 Kg on my hardness tester.
Do I use parts from the same production, material & heat treat lot, or do I use my standard (88.2 +/- 1.0)?
How do I account for the +/- 1.0 tolerance of the standard? Does that mean the limit on my MSA is now 85 – 90 HR15n if I use the customer's parts?
I am using a very old 13.30 version of MiniTab for calculating my results.
Thanks in advance for any and all help.
The more I search and read, the more confused I become.
The customer’s specification for the part is 86 – 89 HR15n.
I can select between a pre-load of 3 or 10 Kg on my hardness tester.
Do I use parts from the same production, material & heat treat lot, or do I use my standard (88.2 +/- 1.0)?
How do I account for the +/- 1.0 tolerance of the standard? Does that mean the limit on my MSA is now 85 – 90 HR15n if I use the customer's parts?
I am using a very old 13.30 version of MiniTab for calculating my results.
Thanks in advance for any and all help.