The cubic boron nitride particles and a binder composed of certain proportion

Single crystal cubic boron nitride having a high hardness, high wear resistance, etc., while overcoming the deficiencies of its anisotropy. Polycrystalline cubic boron nitride in accordance with the cubic boron nitride particles and a binder composed of a certain percentage of the sintered under high  cutting tools  and pressure, adding an  abrasive wheels  amount of the adhesive may be to promote the sintering, reduce the sintering temperature and pressure required and can improve the performance of the sintered body. Thus, the synthetic binder PCBN plays an important role. With a  Synthetic diamond  of titanium nitride, cobalt, aluminum as a binder, sintering at high temperature and pressure conditions, polycrystalline cubic boron nitride sintered body, the sintering pressure is 5Gpa, the sintering temperature range of 1250 ℃ -1650 ℃, the obtained sintered body samples polishing.