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Posted: 1/2/2003 10:39:14 AM EDT
Should I give this a shot or will it warp it if I spot HT the trigger and hammer holes with my mapp torch?  I am finished except fot this issue.
Link Posted: 1/2/2003 12:47:54 PM EDT
Link Posted: 1/2/2003 12:50:46 PM EDT
Bent metal spot heat treat,is that a new rock band?
Link Posted: 1/2/2003 1:19:09 PM EDT

Originally Posted By CAMPYBOB:
if you have a source for localized (spot) induction heat treating, that would be the preferrable route to follow.

what material did use use to build your receiver? maybe i can get you some guides for temperature/color.

Its the bent-metal.com 4130 blank.  I had planned to go red, quench, then take it up to blue... hopefully without any warping.
Link Posted: 1/2/2003 9:48:41 PM EDT
I did this tonight as an experiment... what the heck its just a $25 blank.  The receiver didn't warp at all but a couple of the holes in the lower rails (for hammer and center support clearance) seemed to shift a little.  

I did some filing there and the metal was definitely hardened.
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