Machining Requirements And Characteristics Of Graphite Electrodes

1. The production of graphite electrodes.

The production of professional graphite electrodes is mainly processed by high-speed machine tools. The stability of the machine tools should be good, the three-axis movement should be uniform and stable without vibration, and the rotation accuracy of the spindle should be as good as possible. The ordinary machine tool can also complete the electrode processing, but the process of programming the tool is different from the related process of the copper electrode.

2. EDM electrical discharge machining.

Graphite electrodes are carbon electrodes. Because graphite has good electrical conductivity, it can save a lot of time in electrical discharge machining, which is one of the reasons why graphite is used as an electrode.

Third, the processing characteristics of graphite electrodes.

Industrial graphite is hard and brittle, and the tool wear is more serious during CNC machining. It is generally recommended to use cemented carbide or diamond-coated tools. During rough machining of graphite, the tool can directly move up and down on the workpiece. In order to avoid chipping and chipping during finishing, the method of light knife and fast walking is often used. Generally speaking, graphite seldom collapses when the cutting depth is less than 0.2mm, and good sidewall surface quality can be obtained. The dust generated by the graphite electrode during CNC processing is relatively large. These dust may enter the guide screw and spindle of the machine tool. This requires the graphite processing machine tool to have a corresponding device for processing graphite dust. Impurities and toxic.