Tungsten copper alloy combines the advantages of copper and tungsten, with the advantages of high strength, high specific gravity, high temperature resistance, arc ablation resistance, good electrical and thermal conductivity and good processing performance.
Given that, it has various applications as following:
Electrical Contact Material
Owing to high temperature resistance and electric ablation resistance, in the 1960s, some advanced countries used tungsten-copper alloys to manufacture electromagnetic fuses, throat linings on rockets and missiles, and other components. In addition, in the field of electrical contact, the performance of the contact material basically determines the development trend of the high-voltage switch. Tungsten-copper alloy material has high conductivity, electric ablation resistance and good breaking performance, and is widely used as contact material for high-voltage and ultra-high-voltage switching appliances.
Heat Sink Material
As a heat sink material, the material has high requirements for the uniformity of the structure, air leakage rate, thermal conductivity, and thermal expansion coefficient. Therefore, according to actual needs, tungsten-copper alloy materials can be adjusted by using tungsten and copper elements to change the thermal expansion coefficient and thermal conductivity, which can effectively avoid fatigue damage caused by thermal stress and affect the performance of tungsten-copper alloy materials. At the same time, the alloy material is widely used in inserts, connectors and heat dissipation components because tungsten and copper are composite materials, and have gradually become important heat sink materials.
Electrode Material
Electrode material is a key material in EDM, and it is directly related to stability, precision, and surface roughness of joints. Due to the relatively poor ablative properties of general electrode materials and high motor consumption, the processing accuracy is relatively poor, and even multiple processing is required. For this reason, with the development of tungsten-copper alloy materials, in order to solve the disadvantages of EDM, the WCu alloy material can be used to make electrical machining electrode materials, which can not only effectively improve the accuracy and reliability of machining, reduce electrode consumption.
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