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Super Hard CBN Insert For Turning
| type | dimension(mm) | PCBN | PCD | ||||||||
| L | ∅I.C | S | ∅d | r | YCB011 | YCD011 | |||||
| CNGA | 12.9 | 12.7 | 4.76 | 5.16 | 0.4 | ● | ● | ||||
| 12.9 | 12.7 | 4.76 | 5.16 | 0.8 | ● | ● | |||||
| 12.9 | 12.7 | 4.76 | 5.16 | 1.2 | ● | ● | |||||
| CNMA | 12.9 | 12.7 | 4.76 | 5.16 | 0.4 | ● | ● | ||||
| 12.9 | 12.7 | 4.76 | 5.16 | 0.8 | ● | ● | |||||
| 12.9 | 12.7 | 4.76 | 5.16 | 1.2 | ● | ● | |||||
Cubic Boron Nitride cubic boron nitride, abbreviated as: CBN or cBN. CBN was found in nature in 2009 by an international research team of geologists from the United States, China and Germany, and was named qingsongite. Previously, the mineral could only be synthesized in the laboratory. In 2009, scientists from the University of California, Riverside, Lawrence Livermore National Laboratory, and colleagues from Chinese and German scientific research institutions, together with their counterparts from Chinese and German scientific research institutions, discovered the chromium-rich ancient oceanic crust at a depth of about 306 kilometers underground in the southern mountainous area of the Qinghai-Tibet Plateau in China. The mineral was found in the rock, which formed crystals at high temperatures of about 1,300 degrees Celsius and high pressures of 118,430 atmospheres.
Cubic boron nitride (CBN) is a superhard material second only to diamond in hardness. It not only has many excellent properties of diamond, but also has higher thermal stability and chemical inertness to iron group metals and their alloys. As an engineering material, it has been widely used in the processing industry of ferrous metals and their alloys. At the same time, it has been applied in a series of high-tech fields due to its excellent thermal, electrical, optical and acoustic properties, and has become a promising functional material.