The main sheet metal welding techniques include MIG (Metal Inert Gas) welding, TIG (Tungsten Inert Gas) welding, and resistance spot welding, which is widely used in manufacturing. Other important techniques include plasma arc welding, laser welding, gas welding, and stick welding (shielded metal arc welding). Key Sheet Metal Welding Techniques:MIG Welding (GMAW):Known for its high...