8670 forge welding to itself?

T

Taz

Knifemaker / Craftsman / Service Provider
Joined
Apr 28, 1999
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Buddy wants a chisel pry knife with a metal butt end to hammer on. I was thinking of using 1/4" thick 8670 and adding 2 layers of 1/4" thick 8670 bolsters to the butt end of the handle to create a wider hammering surface (ie a rear bolster). Will 8670 weld easily to itself or should I use 80CRV2 or another steel? I know 5160 doesn't like to forge to itself. I will do the welding of the back bolster, normalize and thermocycle and quench and then torch draw the hammer end down so it is softer than the rest of the blade/tang so it can be hammered on. The other option is to get some 1" 1084 round bar and to forge the round bar into flat stock, leaving a portion at the end of the tang round to hammer on. Any other ideas?
 
It should weld to itself. If you want, you can put shim strips of 1080 or such between the layers.
 
Ok, thanks! I was going to TIG weld 2, 1/4" thick pieces together and then to each side of the tang and then use a press to do the actual forge welding.
 
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