EDM electrodes used copper or graphite electrodes early, cheap but not resistant to ablation, and are now basically replaced by tungsten-copper electrodes. The advantages of the tungsten-copper electrode are high temperature resistance, high temperature strength, arc ablation resistance, good electrical and thermal conductivity, and fast heat dissipation. Applications focus on the spark electrode, resistance welding electrode and high voltage discharge tube electrode.
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Tungsten Copper Electrode Picture
The characteristics of the EDM electrode are various varieties and specifications, and the batch size is small and the total amount is large. The tungsten copper material as the electrode for electrical processing should have as high a density as possible and uniformity of the structure, especially elongated rod-shaped, tubular and shaped electrodes.
