Characteristics Of Cubic Boron Nitride(CBN) Tools
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Characteristics Of Cubic Boron Nitride(CBN) Tools


Cubic boron nitride tools (CBN tools) are a kind of tools which were first synthesized by American general electric (GE) company under high temperature and pressure by the artificial method in the 1950s. The notable characteristic of them is that it has a good impact resistance. Especially in rough machining field. It does not break when used. Which is the most basic guarantee for the safety of cubic boron nitride (CBN) tools. The microhardness of CBN tools single crystal with good wear resistance is HV8000 ~ 9000. Which is the second highest hardness material known at present.

Characteristics of cubic boron nitride(CBN) tools

The hardness of CBN tools composite sheet is generally HV3000 ~ 5000. CBN tools also have high oxidation resistance and do not happen the oxidation phenomenon until 1000℃. And do not have a chemical reaction with iron materials at 1200 ~ 1300℃. This allows machining efficient while replacing ceramic tools at low cost. Which is the economic guarantee for CBN tools. Moreover, with the development of technology, the temperature of oxidation of cubic boron nitride tools will be higher and higher. And the production efficiency will be continuously improved. Thereby bringing greater convenience to users and creating greater production value.  
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