Compared with high-speed steel and cemented carbide, ceramic cutting tools have better red-hardness and wear resistance. Compared with the ultrahard material of diamiond, it has better thermal stability, impact resistance and lower manufacturing cost. Therefore, it plays an important role in the development process of advanced manufacturing technology. The main materials are alumina, silicon nitride, boride, etc. Main features of advance ceramic cutting tools are as follows:
1. Good wear resistance, long life time and high hardness, hardness can be up to 93-95HRA
2. High temperature resistance, good heat resistance, can work under high temperature of 1200℃. It has good high-temperature mechanical properties. Hardness can reach 87HRA at 800℃.
3. High cutting efficiency
4. Good chemical stability, corrosion resistance, not easy to bond with metal, reduce tool-bonding wear
5. Have very low friction coefficient, can reduce the cutting force and temperature
6. Cutting cost can greatly reduce rich ceramic raw materials on the earth