How to process graphite electrode?
(a) the processing form of graphite materials There are three main forms of graphite electrode processing : pressure vibration method, numerical control automatic forming method and mechanical processing method. (1) Pressurized vibration method: the pressurized vibration method requires a special machine tool, and the electrode mother mold is opposite to the electrode shape. Graphite materials and forming tools are placed relative to each other during processing, leaving a certain gap. A processing fluid consisting of a mixture of water and abrasives is injected into it. The graphite and the forming tool are subjected to ultrasonic vibration while passing through the processing fluid. Under the action of the abrasive impact, the graphite is slightly removed to form the desired shape. The abrasive is SiC, B4C or diamond, the rougher the abrasive is the faster the processing speed. Sealing and water curtain are used to process the machine. Edm process suitable for mass production. ...