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45082
Why does part become too brittle after
the de-embrittlement process? What should I do?
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I work in the automotive industry and having problem with part
(Zinc plated and gone thru the de-embrittlement process. During
assembly of this part, the tang on the part is too brittle and broken
off during the assembly process.Please advise.
Raymond Goh
Quality Engineer - Melbourne, Australia
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Hydrogen embrittlement damage occurs quickly and is permanent,
Raymond. You must do the baking almost immediately -- how much time
actually elapsed?
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Ted Mooney, P.E.
finishing.com
Brick, New Jersey
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What Ted said is extremely true.
Next, is the part properly designed?? Try mounting a couple dozen
unplated parts and see how many break.
Next, you may need to do a pre-bake or a shot peening process.
But normally, if the parts are in the oven within 30 minutes and
spend 4 hours with the parts at 375F, you should have no problem.
Spending too long in the acid etch is another common cause.
James Watts
- Navarre, Florida


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