The spot welding process involves joining metal materials by directly applying opposing forces using electrodes with pointed tips. An electrical current is transported through the welding segment and fuses the parts together. After combining the two pieces, the welder turns the current off and applies pressure to the product; this solidifies the weld and creates the joint.

Projection welding is another popular resistant technique that uses pressure and an electrical current to join metal parts at designated points. The projections created by this process can feature circular shapes, round dimples, extended corners, or elongated ridges of weld nuts.

Seam welding is a method that joins work pieces together along a continuous seam. The welder uses two overlapping pieces of metal and clamps them together between two copper electrodes. An electric current is then passed through, heating the metals and fusing them together. The seam weld is created along the joint between the metal pieces, and the weld’s depth can be controlled by adjusting specific parameters.

Another popular resistance welding method is butt welding. This process involves joining two metal pieces together by using an electric current heat to melt them. The materials are then combined through pressure, which creates a solid weld joint.