Spot welding is a process by which the surfaces of two metallic pieces are joined together through heating. The heat that melts the surfaces is generated by an electrical current. Copper is a highly conductive metal, often used as the metal of the conducting electrode ends of spot welders, complicating the process of spot welding it. Spot welding copper requires special electrodes and brazing paste in order to achieve the same sturdy welding job that can be more easily achieved with metals such as steel.
Things You'll Need
- Molybdenum or tungsten faced electrodes
- Brazing paste
Apply brazing paste in between the two points to which you will apply the electrodes of the spot welder.
Lower the electrodes of your spot welder and pinch the two pieces of copper you will spot weld.
Activate your spot welder for quick bursts, turning the welder off and removing the electrodes after each burst.