Quote Originally Posted by gpete View Post
I have many times saved a bent key by your method. Another time I bent a section of 1/8 th copper pipe the same way. I don't think many people know of this.
Just like working with aluminum sheets when making gas tanks for motorcycles I always smoked the sheet a little with my torch by waving the flame without using any oxygen. by warming the sheet to about 250 to 350°f it softened the metal enough to hammer out the shapes on a leather bean bag with a mallet I always welded with the act torch as well with a long dull feather to the flame or what would be termed as a slightly carbonizing flame I didn't have a tig and mig welding left the joints too brittle to suit me.