Research progress of PCBN superhard cutting tools

The continuous improvement of cutting speed of modern tools and the development of advanced integrated manufacturing system put forward higher requirements for the performance of modern tools. The quality, performance and reliability of cutting tool materials directly affect the production efficiency and processing quality, as well as the level of production technology and economic benefits of the whole manufacturing industry. Therefore, the development of superhard cutting tools with high stability and good wear resistance is a trend. This paper introduces the development and application of superhard material PCBN tool at home and abroad, the preparation method of PCBN tool material and the manufacturing process of PCBN tool, the chip breaking groove, polishing edge structures and new PCBN tool, the related research of turning simulation, and the prospect of PCBN tool and the whole tool industry.