Features and advantages of cubic boron nitride tools

Cubic boron nitride (CBN) is a kind of super hard tool material synthesized artificially by ultra-high pressure and ultra-high temperature technology. It can process high hardness and high wear resistance material which can not be processed by carbide blade and ceramic blade. It has the characteristics of high processing efficiency, long tool life and good processing quality.

Cubic boron nitride tool

Cubic boron nitride tool advantages

(1) Good wear resistance, can meet the requirements of cast iron workpiece for tool wear resistance, completely replace the carbide tool and ceramic blade, efficient processing at the same time prolong the service life of the tool, the comprehensive tool cost is lower.

(2) Strong impact resistance, can meet the quenched steel workpiece of the tool impact resistance requirements, avoid ceramic blade collapse, fracture and other situations, meet the workpiece strong discontinuous cutting needs, higher processing efficiency.

Zhengzhou Bote CBN tool manufacturer

Cubic boron nitride tool features

1, strong chemical stability. Cubic boron nitride is chemically inert material and will not react with iron group materials at 1200~1300℃. In addition, the bonding and diffusion effect of cubic boron nitride with various materials is much smaller than that of cemented carbide, especially suitable for processing iron and steel materials.

2, high hardness and good wear resistance. The friction coefficient between CBN and different materials is between 0.1 and 0.3, which is much smaller than that of cemented carbide, so it is beneficial to improve the surface quality of processed materials. The grain hardness of cubic boron nitride is up to HV8000~9000, which is much higher than that of cemented carbide and ceramics, so it has more advantages in processing high hardness materials.

Cubic boron nitride tool turning

3, high thermal stability. Even under the high temperature of 1200℃, cubic boron nitride can still maintain good thermal stability, the heat resistance of diamond is almost twice higher than that of diamond, so there is no fear of high temperature produced by high speed cutting, can be used than carbide tool 3~5 times higher speed to cut.

4, good thermal conductivity. The thermal conductivity of cubic boron nitride is second only to diamond, 20 times that of hard alloy, and with the increase of cutting temperature, its thermal conductivity will gradually increase, which is conducive to the temperature diffusion of the cutting tool in the cutting zone.

5, can be car instead of grinding. Cubic boron nitride (CBN) cutting tools not only have high metal cutting rate, but also have good surface quality. When cutting all kinds of hardened steel, it can effectively replace grinding, reduce machining process, improve production efficiency, and machining accuracy can reach the level of grinding.