diamond superhard material properties and role Diamond

Superhard materials as superior performance, application constantly expanding, from the developed to the metal processing optical glass processing, stone processing, ceramics processing, processing of brittle materials is difficult for traditional processing areas.
Natural single crystal diamond, because of its anisotropy, the difference of the hardness of the crystal is very  diamond blades large, in the grinding tool when choosing the soft side of a polishing surface, and the surface of their hard as the rake face or the flank, This brings a favorable ground conditions, its anisotropy, so in use, to be considered a reasonable choice of the crystal plane, for example, hardness of the anvil, in use, the use of pressure is measured in or bouncing measured hardness of the material, but because of the hardness of different face, the results are different, of course, with a hard surface will help prolong life, and if made of natural diamond wire drawing die, because the hole face constituted by the crystal surface, so inconsistent hardness, wear will be uniform, circular cross section while the wire will cause stress differences uneven hardness, and affect the use of diamond sintered body and the thick-film diamond, the isotropic use in such products become very favorable.
PCD, PCBN, because grains are different, different concentrations, the performance is different, must be a  diamond cbn wheel reasonable choice. Diamond is a pure diamond thick, close to the hardness of natural diamond, and PCD, PCDN diamond powder is mixed with the binding agent is sintered, so by the binding agent of the hardness, the hardness as the former.
Is well known, diamond with iron affinity, can be used in ferrous and non-metallic materials, while CBN even at a high temperature of 1000 ℃ cutting ferrous metal is fully competent. Has become difficult to machine materials, the main cutting tool materials. Superhard materials generally refers to a synthetic diamond, artificial CBN. These two materials exist, played a complementary role, you can overwrite the current and future concrete ring saw  development of a variety of new materials processing, the entire cutting areas is extremely beneficial.
Precision diamond cutting tool sharpening requires great skill, in order to obtain a more accurate cutting edge radius, in particular less than 0.05um less precision, and of the grinding machine made very strict requirements, must have a high turn precision spindle shaft, the old mill were not suited, began to use more as a support air bearings, grinding disc must be able to be on the machine Shuhei to face runout control 0.5um or less. PCD and PCBN the grinding is relatively easy because the hardness is relatively low, with a diamond grinding wheel will fit, while thick diamond is different, its hardness close to the natural diamond, and is isotropic, so grinding more difficult .