EDM trade

EDM graphite (spark) is mainly used for processing all kinds of complex shapes and precision fine workpiece, such as cutting die of convex mold, concave mold, convex, concave mold, fixed plate, unloading plate, forming tool, sample, spark molding processing metal electrode, all kinds of fine hole groove, narrow joints, arbitrary curve, with small processing margin, high precision processing, short production cycle, low manufacturing cost, has been widely used in production, the current domestic and foreign electric spark cutting machine tool has accounted for more than 60% of the total number of electric processing machine tools. 

EDM is the principle of using the spark between the electrode and the workpiece to remove the material on the surface of the workpiece. EDM is suitable for the processing of high-hardness conductive workpiece.

EDM is the fourth popular processing method after car, grinding and milling. Compared with conventional copper electrodes, EDM equistatic graphite has its advantages: 

1. The price of graphite is only 25% of copper electrode.

2. The processing speed of graphite is 3-5 times that of that of copper electrode, and the processing surface is smooth.

3. High machining accuracy and easy polishing.

4. The body density of graphite is only 1 / 5 of the copper electrode, which is more suitable for making large electrodes.

5. As the electrode used for EDM, the stage consumption is only 1 / 3-1 / 5 of the copper electrode, and the carbon carbide of spark oil decomposition is covered to compensate for the electrode consumption.