Graphite end mill for metal processing material affects the widespread use of high-speed milling technology. Now the tools suitable for high-speed milling are: coated graphite cutters, ceramic cutters, cubic boron nitride (CBN) cutters, polycrystalline diamond (PCD) cutters, etc. The choice of tool material has an important influence on the processing efficiency, processing quality, processing cost and the life of the graphite electrode tool. After a lot of experiments and applications, Graphite end mill for metal processing is currently the ideal tool material for high-speed milling of graphite electrodes. The advantages of Graphite end mill for metal processing to promote high-speed milling of graphite electrodes are as follows:

1. High hardness and wear resistance
For high-speed milling of graphite electrodes, the hardness of the Graphite end mill for metal processing tool material must be much higher than that of the graphite material. The higher the hardness of the tool material, the better its wear resistance, and diamond is the hardest superhard material found so far, such as CDW025 and CDW302 grain size diamond tools have the best wear resistance.
2. High strength and durability
Graphite end mill for metal processing material has high strength and resistance, and can accept large cutting force, vibration and impact. Polycrystalline diamond (PCD) tools and CVD diamond coated tools are all made of carbide tools as the base. Welding or coating diamond material at the cutting part combines the high hardness of diamond and the high toughness of cemented carbide to avoid brittle fracture of the tool.