In resistance welding, the metals are heated by an electrical current and parts are joined by pressure. Copper electrodes are placed on either side of the pieces to be joined. The electrode tips contact the metal sheets and push them together for a short period of time to ensure the weld tip force is reached and the weld gun is fully closed. This is called “squeeze time” and can run between 12 to 30 cycles depending on the weld gun size.(…)
