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Old July 1, 2018, 03:41 PM   #9
RC20
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Join Date: April 10, 2008
Location: Alaska
Posts: 7,014
Quote:
I know better than to anneal the head of the case.
It sure had a different tone to me.

Any annealing work with that area has to be totally restrictive.

I can see why you suggested shot peening. sort of.

Quote:
If so is there a way to localize the hardening, say to just the head/rim area? Or is it a matter of annealing the area you want soft again?

Annealing and hardening are two different things. So call me totally confused. It would help if you would describe the case and its issues or have a link.
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