Product Knowledge
Spot welding
Spot welding is a resistor welding process where spots of the pieces being welded are heated with electricity near their melting point and then compressed against each other, welding the pieces together.
Spot welding is used in sheet metal work. The plates must be compressed against each other without an air gap. The penetration of the weld is adjusted with the spot welding time and welding current. Spot welding uses a specially crafted gas nozzle, which is pressed against the surface of the plate. The gas nozzle usually has small gaps from which the shielding gas can exhaust.
