Spot welder machine welding two metals with sparks, illustrating its working mechanism.

How Does a Spot Welder Work? Unveiling the Technology Behind Welds

A spot welder operates through the principle of electrical resistance welding, where metal surfaces are joined by the heat generated from the resistance to electric current. This welding method involves applying pressure and high current for a very short period to the weld area, resulting in a series of small welds or “spots.” This process…