EDM

Electrical discharge machining (EDM), also known as spark machining, spark eroding, die sinking, wire burning, or wire erosion, is a metal fabrication process using electrical discharge (sparks). Material is removed from the work piece by a series of rapidly recurring current discharges between two electrodes, separated by a dielectric liquid and subjected to an electric voltage. One of the electrodes is called the tool-electrode (or simply the tool or electrode) and the other is called the workpiece-electrode (or work piece). There are three types of EDM:

In order to use the EDM process, the material should have enough electrical conductivity, such as metals, silicon carbide, tungsten carbide, etc. View our photo gallery for more EDM photos.