A projection welding machine performs projection welding, a resistance welding process that uses pre-formed raised points, or projections, on metal parts to concentrate heat and join them with pressure. Unlike standard spot welding, the welding points are defined by the part's design, not the electrodes, allowing for simultaneous welds at multiple points. This method is ideal for welding fasteners like nuts and bolts to sheets, creating durable joints for applications in the automotive and consumer goods industries.
