These are copper alloys produced by powder metallurgy and contain a high percentage of tungsten. Tungsten provides very high strength during welding. The high electrical conductivity of copper allows its use as an electrode.
WHERE IS TUNGSTEN COPPER USED?
Tungsten-copper is used as electrodes for the spot welding of stainless steel (e.g., in the welding of pot handles), as a highly wear-resistant electrode in the sink erosion process, in the spot welding of resistance wires, and in the contact welding of electric motor contacts.
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