Tungsten Copper Electrode Types II

It requires that electrode materials should have good mechanical strength (not be out of shape after stamping), good thermostability (not be out of shape after welding), excellent thermal conductivity (not be easily heat by current) and can not be combined with the welded material (simply not be stick with the welded material). Therefore, tungsten copper could meet a criterion above. In addition, there are some description and rules in the standard of Japanese copper alloy electrode (JIS Z 3234-1999).

2. EDM Electrode

EDM (Electrical Discharge Machining) is also called as discharge machining or electric corrosion machining, which uses pulse discharging between electrodes. The principle is that the electrode and the work-piece used as two poles and put the liquid in the gap of discharge, the pulse voltage will puncture the liquid when the distance decreasing.

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