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 ...

Welding is serious business, but it can often get romanticized. In truth, welding is part science and part craftsmanship, and mastering it takes more than a macho posture and a gas mask. Each welding ...