Flash Allowance - Zinc Die Casted Part
Flash Allowance - Zinc Die Casted Part
(OP)
Hi all, my company purchases a zinc die casted part that recently has had a flash issue. The supplier states that the part meets drawing specs and is refusing to rework the parts unless we pay a service fee per part. As I reviewed the drawing I noticed that in one of our notes it states "FLASH ALLOWANCE TO 1.500 MAX". I'm trying to understand what this means. Is there a website or book that I can reference on how to correctly interpret this or update my drawing to correctly call-out flash acceptance? Thank you.





RE: Flash Allowance - Zinc Die Casted Part
We would typically have a second note similar to "parting line mismatch: 0.005 in max" to control the thickness of any flash.
RE: Flash Allowance - Zinc Die Casted Part
"Even,if you are a minority of one, truth is the truth."
Mahatma Gandhi.
RE: Flash Allowance - Zinc Die Casted Part
RE: Flash Allowance - Zinc Die Casted Part
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P.E. Metallurgy, Plymouth Tube
RE: Flash Allowance - Zinc Die Casted Part
If you cannoyt be clear about this specific phrase, you have lost your money trying to get this supplier to fix it.
RE: Flash Allowance - Zinc Die Casted Part
RE: Flash Allowance - Zinc Die Casted Part
RE: Flash Allowance - Zinc Die Casted Part
In the event of an ambiguity, the courts generally rule against the party that created the spec/contract.
Dik
RE: Flash Allowance - Zinc Die Casted Part
"Even,if you are a minority of one, truth is the truth."
Mahatma Gandhi.
RE: Flash Allowance - Zinc Die Casted Part
If the part has changed then either they are not maintaining tooling or they didn't set-up correctly.
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P.E. Metallurgy, Plymouth Tube
RE: Flash Allowance - Zinc Die Casted Part
At best this gives you the ability to reject parts coming in your door.
Regardless, your task now needs to be determine what is acceptable and how to properly define it on a drawing.
A bad vendor making parts to a bad drawing rarely has a good outcome.
RE: Flash Allowance - Zinc Die Casted Part
"At best this gives you the ability to reject parts coming in your door."
only if the supplier prepared the document... If the owner (or rep) prepared it, then the owner/rep has little to stand on...
Dik
RE: Flash Allowance - Zinc Die Casted Part
"It's my drawing and my interpretation of the meaning is the correct one."
RE: Flash Allowance - Zinc Die Casted Part
Dik