E
ets123
Suppling a product to tier 2 assembler in automotive market.
The print only has (Reference Dimensions) on it.
The print also has tolerance in the Title block.
And we have the CAD drawing from the customer, although, I can only have a cad viewer to see the overall shape and not pull of dimensions from.
My process is a multi-cavity hot molding process.
The finished part is very flexible and easily deformed when handled so it is difficult to measure.
Question, as all the dimensions on the print are references ( ) I'm thinking of "ignoring" them and choosing other dimensions on the shape to measure that relate to controllable points in my process and where I can get a valid measurement (where it's is not so deformable). Of course, setting this up in our lab testing with formal testing methods for this part type.
So why not talk to the tier 2. Reference dimensions seem to be a free ticket to me. They are only reference, and asking may move them from Reference to actual with tolerance, and I said above, I cannot measure the part for that dimension due to it flexible nature.
Yet I have to submit data on part measurements for PPAP.
Would you agree to me "ignoring" the reference values, and choosing my own areas of the part to measure and report on in the PPAP.
Best Regards.
Ed
The print only has (Reference Dimensions) on it.
The print also has tolerance in the Title block.
And we have the CAD drawing from the customer, although, I can only have a cad viewer to see the overall shape and not pull of dimensions from.
My process is a multi-cavity hot molding process.
The finished part is very flexible and easily deformed when handled so it is difficult to measure.
Question, as all the dimensions on the print are references ( ) I'm thinking of "ignoring" them and choosing other dimensions on the shape to measure that relate to controllable points in my process and where I can get a valid measurement (where it's is not so deformable). Of course, setting this up in our lab testing with formal testing methods for this part type.
So why not talk to the tier 2. Reference dimensions seem to be a free ticket to me. They are only reference, and asking may move them from Reference to actual with tolerance, and I said above, I cannot measure the part for that dimension due to it flexible nature.
Yet I have to submit data on part measurements for PPAP.
Would you agree to me "ignoring" the reference values, and choosing my own areas of the part to measure and report on in the PPAP.
Best Regards.
Ed