What is spot weldng?

Question

What is spot weldng?

Answer 1

Spot welding is one form of resistance welding, which is a method of welding two or more metal sheets together without using any filler material by applying pressure and heat to the area to be welded. The process is used for joining sheet materials and uses shaped copper alloy electrodes to apply pressure and convey the electrical current through the workpieces. In all forms of resistance welding, the parts are locally heated. The material between the electrodes yields and is squeezed together. It then melts, destroying the interface between the parts. The current is switched off and the "nugget" of molten materials solidifies forming the joint.

Answer 2

Where a point of Electricity is concentrated in one Spot Melting the metal together so as to create a "Spot Weld" Most often used in sheet metal assembly such as unitized vehicle body construction.