On Apr 12, 11:56*am, xpzzzz wrote:
I need to "invert" a stamped steel part; at one end there is a spring
hook made with a 90 degree bend at its base. *I need to flip this hook
180 so it is 90 degrees on the other side. *The stamping is about 3/32"
thick and the hook projects maybe 1/4". *I only have one chance at this..

I assume it is mild steel.

Cold? *Hot? *If hot how hot?

A lot depends on how much of a radius they left when it was bent. I
assume this is with something resembling soft mild steel rather than a
heat-treated part. I wouldn't try bending this cold either way. I'd
hit it with a torch to a red heat, then try bending it. There's a
good chance that the thing will just crack off no matter what you do.
In which case I'd make up an L-shaped piece and braze it on the
surface.

Stan