Electric Arc Furnace Electrodes 500mm Dia

Graphite electrode product parameters

What are the advantages of Electric Arc Furnace Electrodes?

1. The increasing complexity of mold geometries and the diversification of product applications are driving the demand for higher discharge accuracy in spark machines. The advantages of Electric Arc Furnace Electrodes include ease of machining, high EDM removal rates, and minimal graphite loss. Consequently, some Qunji spark machine customers are switching from copper electrodes to graphite electrodes. Furthermore, some electrodes with specialized shapes cannot be made with copper, but graphite is easier to form. Furthermore, copper electrodes are heavier, making them unsuitable for machining large electrodes. These factors have led some Qunji spark machine customers to opt for graphite electrodes.

2. Graphite anode plates are easier to machine and significantly faster than copper electrodes. For example, machining graphite using iron cutting techniques is 2-3 times faster than machining other metals and requires no additional manual processing, whereas copper electrodes require manual filing. Similarly, using a high-speed graphite machining center to manufacture electrodes is faster and more efficient, without generating dust. Choosing tools and graphite with appropriate hardness during these processes can reduce tool wear and copper breakage. Specifically comparing the milling time of graphite electrodes with copper electrodes, graphite is 67% faster. In general, graphite electrodes are 58% faster than copper electrodes in EDM. This significantly reduces processing time and manufacturing costs.

3. Graphite anode plates differ from traditional copper electrodes in design. Many mold shops typically use different allowances for roughing and finishing copper electrodes, while Electric Arc Furnace Electrodes use nearly identical allowances. This reduces CAD/CAM and machining time, and for this reason alone, can significantly improve mold cavity accuracy. Of course, mold shops switching from copper electrodes to graphite electrodes should first understand how to use the graphite material and consider other related factors. Some Qunji EDM customers now use graphite electrodes for EDM, eliminating the need for mold cavity polishing and chemical polishing while still achieving the desired surface finish. This would be impossible with copper electrodes without increasing the time and polishing process. Furthermore, graphite comes in different grades, and optimal machining results can only be achieved using the appropriate grade and EDM parameters for specific applications. Using the same parameters on a graphite EDM machine as for copper electrodes will inevitably result in disappointing results. If strict control of electrode material is required, the graphite anode plate can be set to a non-consumable state (less than 1% loss) during roughing, while the copper electrode is not used.