Reworking hammer questions

[Slackdaddy]

Just got 2 extra hammers to play with,
I plan on heating the "cocking lever" of the hammer cherry red and bending it back, and while it is hot welding on a hammer extension.

Questions:

1) should I only heat the part I am bending (keep the rest submersed in liquid)
3) after I am done bending and welding, does the whole hammer need to be "heat treated"
4) If it does need to be heat treated, do I heat the whole thing too "red" and dip in oil ?

Thanks for any input,

Nick

[quickdtoo]

I'm not an expert on metallurgy, but to my knowledge the hammers are made of sintered metal which from previous discussions doesn't lend itself well to rehardening, I'd put the hammer in a heavy bench vice as a heat sink to keep the hardened work surfaces from being annealed, I've annealed the hammer spur so it could be drilled and tapped for an M94 hammer extension, it worked fine, but you'll want to heat more of the hammer, so you're on your own there, let us know how it works, worst case scenario you'll be out $10 for the hammer. 

Tim