high metal removal rates, and loss of graphite. Therefore, more and more plants die and switch to renounce the use of copper electrode graphite electrodes. Some shapes of the electrode can not be made of copper, but graphite is easier to shape. Heavier copper electrode (graphite weight of copper 1/5), not suitable for processing of large electrodes, which is one of the reasons instead of graphite electrodes.
Mold factory to switch from the copper electrode graphite electrodes, graphite need to understand how to use the materials, as well as many other factors to consider. Graphite is divided into different levels, in particular the application using the appropriate grade graphite and machine parameters can achieve the desired results. Such as the use of graphite electrodes machine operators use the same settings with copper electrodes, the results are disappointing. Because the melting point of copper is 1083oc, and the melting point of graphite 3400oc appear. Graphite electrodes can withstand greater machine setting conditions. These settings metal removal rate of the calculated loss amount and graphite. If the need for strict control electrode material, the graphite electrode can be located in non-roughing loss state (loss of less than 1%). But copper electrode is not used.
Graphite electrode machining easier. Graphite milling metal processing speed than other 2-3 times faster. And does not require additional manual handling. However, the copper electrodes require manpower fell mill. Graphite electrode Molybdenum tube high speed machining centers, high efficiency, and no dust problems. Choose the right tools and graphite hardness can reduce tool wear and breakage of the electrode. Compare graphite electrode and copper electrode general work and found the graphite electrode milling time faster than 67% of the copper electrode, and electrical discharge machining is 58% faster. Significantly reduce the processing time, increasing productivity and reducing manufacturing costs.
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