How melal are used in welding?

Answer 1

Depending on the welding process, material preparation and welding procedure (Preheat, Interpass maintenance, Post weld cooling time), virtually all metals can be welded. Welding is in almost everything manufactured from metals (and some plastics), from cars and spacecraft to potato chip bags and cola cans. If you look under the hood of your car, you will see small indentations where parts come together (spot welds), your bicycle has GMAW welds, plastic garbage bags are sealed by microwave welds, the stainless steel stove hood is GTAW welded, the bridge you drove over has SMAW welds....and the list goes on... If it's made of metal, there is probably a weld on it.