Of course, after a mold factory switches from copper electrode to graphite electrode, it should first be clear how to use graphite materials and consider other relevant factors. Today, some group based spark machine customers use graphite for electrode discharge machining, which eliminates the process of mold cavity polishing and chemical polishing, but still achieves the desired surface finish. Without increasing the time and polishing process, it is impossible for copper electrodes to produce such a workpiece. In addition, graphite is divided into different grades, and using appropriate grades of graphite and spark discharge parameters for specific applications can achieve ideal machining results. If the operator uses the same parameters as copper electrodes on a spark machine using graphite electrodes, the results may be disappointing. If it is necessary to strictly control the material of the electrode, the graphite electrode can be set in a non loss state (loss less than 1%) during rough machining, but the copper electrode is not used.

Graphite has the following high-quality properties that copper cannot match:

Processing speed: High speed milling rough machining is 3 times faster than copper; High speed milling finishing is 5 times faster than copper

Good processability, capable of achieving complex geometric modeling

Lightweight, less than 1/4 density of copper, easy to grip electrodes

The number of individual electrodes can be reduced because they can be bundled into composite electrodes

Good thermal stability, no deformation, no machining burr