Resistance welding electrodes for non-ferrous metals

For resistance welding of non-ferrous metals electrodes are made of tungsten (W), molybdenum (Mo) or other refractory alloys due to  much better properties during work in high temperatures. Composite 

electrodes, where the shank supplies electricity and dissipates the generated heat, and the electrode tip made of W or Mo takes part in the welding process, is a very good choice for most applications.