The copper electrode of the EDM machine, Also known as CNC machining of copper electrode mirror. It is an indispensable part in the processing of EDM machine.
Durante a usinagem EDM, o eletrodo de cobre e a peça de trabalho são conectados respectivamente aos dois pólos da fonte de alimentação de pulso. A tensão de pulso aplicada ao eletrodo de cobre e à peça de trabalho gera descarga de faísca. A temperatura instantânea da descarga pode ser tão alta quanto 10,000 graus Celsius, e a alta temperatura torna a superfície da peça parcialmente vaporizada ou derretida.
Immediately after the next pulse voltage, a spark discharge is generated between the copper electrode and the workpiece, and the above process is repeated.
Through countless repetitive pulse discharges, a shape corresponding to the shape of the electrode is finally processed. Portanto, as long as the shape of the copper electrode is changed, various complicated profiles can be processed.
In EDM machining, the role of the copper electrode is to transmit processing pulses and to remove the workpiece with the minimum loss of the copper electrode itself. Commonly used electrode materials are copper, graphite, copper-tungsten alloy, silver-tungsten alloy, aço, latão, cast iron, etc..