Spot welding, or resistance spot welding, is a welding process used to weld sheet metal by applying heat and pressure with an electric current through a copper alloy electrode.
There are different types of spot welders, spot welders for 18650 batteries are different to hand held squeeze-type spot welders. Squeeze-type spot welders have large metal electrode jaws which go either side of the metal sheets, creating heat and pressure in a small spot to weld them together. Battery spot welders have electrodes on the same side and are typically used for connecting 18650 batteries. Read More