Boron Ultrahard Material
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PCD / PCBN super hard standard blade

Introduction to the properties of cubic boron nitride (PCBN) standard inserts:
Cubic boron nitride (PCBN) has high hardness, reaching 3500~7000HV, second only to the hardness of diamond; its flexural strength and fracture toughness are between cemented carbide and ceramics; its thermal stability is much higher than that of synthetic diamond , It can still be cut at 1300 ° C, has high oxidation resistance, and does not produce oxidation at 1000 ° C. The chemical inertness of iron is far greater than that of synthetic diamond, and it is also compatible with iron-based materials at high temperatures of 1200 to 1300 ° C. It is not easy to play a chemical role, but it will hydrolyze with water at about 1000 ° C, causing a large amount of CBN to be worn. Therefore, when using PCBN tools for wet cutting, care should be taken to select the type of cutting fluid. Therefore, as a superhard tool material, cubic boron nitride can be used to process ferrous metals such as steel and iron, especially difficult-to-machine materials such as superalloys, fire steel and chilled cast iron. It is also very suitable for CNC machine tools.
Introduction to the properties of standard diamond (PCD) inserts:
In order to improve the toughness and weldability of PCD inserts, PCD and carbide body are often made into synthetic diamond composite inserts (PCD). That is, a layer of PCD with a thickness of 0.5~1mm is pressed on the surface of the cemented carbide substrate and sintered in a high vacuum furnace. Diamond tools have the advantages of extremely high hardness and wear resistance, low friction coefficient, high elastic modulus, high thermal conductivity, low thermal expansion coefficient, and low affinity with non-ferrous metals. It can be used for precision machining of non-metallic hard and brittle materials such as graphite, high wear-resistant materials, composite materials, high silicon aluminum alloys and other tough non-ferrous metal materials.