Performance advantages of CBN inserts
1. High hardness and wear resistance
The microhardness of CBN single crystal is HV 8000-9000, which is the second highest hardness material was known at present. The hardness of CBN composite blank is HV3000-5000 generally.
2. High thermal stability and high temperature hardness
The heat resistance of CBN can reach to 1400-1500 °C, and the hardness of CBN at 800 °C is the normal temperature hardness of Al2O3/TiC ceramic.
3. High chemical stability
CBN has a high oxidation resistance, and does not cause oxidation at 1000 ° C, and does not chemically react with iron-based materials at 1200 to 1300 ° C.
4. Good thermal conductivity and low friction coefficient.