In the tungsten inert gas (TIG) welding process, an electric arc is struck between a refractory electrode made of tungsten and the work piece, while a shroud of inert gas, usually argon, shields the ...
Humans have been welding at least since the advent of the first horseshoes and wagon wheels. Back then, the village blacksmith didn't have screw threads or Cherry rivets, electricity or gas. For those ...
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