Electrode Loss Of Graphite Material

Graphite electrodes have the characteristics of being able to withstand high current conditions. In addition, under appropriate conditions for roughing, carbon in steel workpieces during machining and carbon in decomposition products produced at high temperatures during processing Particles, under the effect of polar effects, part of the erosion and carbon particles will adhere to the electrode surface to form a protective layer, which guarantees that graphite electrodes have minimal loss during rough processing, even "zero loss". The main electrode loss in EDM comes from rough machining. Although the set rate for finishing is high, the machining loss is small because the spare machining allowance is not too much, and the overall loss is small.