At 12:37 PM 11/22/2003 -0600, Bob Nogueira wrote:
I didnt remember this question being answered here so I asked my machining
instructor. He was busy so I didnt go for detail, just the quick answer.
>Can a gear be case hardened a second time?
Yes
>I'm rebuilding a transmission (
>for which replacement parts are no longer available) and one of the gears
>appears to have a couple of teeth that have been exposed to moisture. No
>heavy rust but it appears to have removed the case hardening. Am I correct
>in the believe that the hardening is only on the surface and does not go
>very deep? .
>Bob
He described case hardening as an "eggshell"
Steve Shipley
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