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Polycrystalline cubic boron nitride (PCBN) superhard material tool has high hardness, good wear resistance and chemical stability, and its application in the field of automobile manufacturing has become more and more extensive.
PCBN cutting tools are made of CBN particles, which are sintered at high temperature and high pressure with or without binder.
Hardened steel is a typical wear-resistant and difficult-to-machine material. After quenching or low-temperature tempering to relieve stress, the hardness of such materials is as high as HRC45~HRC65.
Polycrystalline Diamond (PCD for short) is a composite material composed of diamond and cemented carbide, usually by assembling diamond powder with a certain amount of binder and cemented
The hardness of cubic boron nitride (CBN) is second only to diamond. It has the characteristics of high hardness, good thermal stability and chemical stability, and is chemically inert to iron group elements at high temperature.
Resin-bonded CBN grinding wheels use organic polymer compounds as binders to consolidate CBN abrasive grains together to form a grinding tool with a certain rigidity (strength and hardness).
In recent years, the use of polycrystalline cubic boron nitride (PCBN) has made it possible to perform precise hard cutting of workpieces with a hardness of 58HRC or more, and achieve the surface quality of turning instead of grinding.
With the continuous progress of high-efficiency grinding technology, the market has higher and higher requirements for the performance of resin-bonded CBN grinding wheels, and the requirements for the types of processing materials are also increasing
Proper selection and application of tool edge treatments are considered to be one of the essential elements for the successful manufacture and proper use of hard turning tools.