Coated tool materials have great potential in high-speed cutting, continuing to research new coating technologies and coating materials to improve performance and expand use. But the main development of powder coating, that is, a new generation of coated tools coated with high-performance wear-resistant materials on cemented carbide and powder metallurgy high-speed steel powder (grain), can be reground without affecting its performance, for complex tools Especially meaningful. The preliminary development of a coated blade coated with Al2O3 on cemented carbide powder demonstrates its feasibility and superiority.
For some workpiece materials that are difficult to process and apply more (such as titanium alloy), because of the high temperature during cutting, even at medium speed, study air-cooling (such as nitrogen) method that does not pollute the environment, reduce cutting Temperature to achieve efficient cutting is a viable and promising direction.
5 Conclusion
High-speed cutting technology has become the mainstream of cutting processing, and speeding up its promotion and application will create huge economic benefits. High-speed cutting tool materials play a decisive role in the development and application of high-speed cutting technology. Four types of high-speed cutting tool materials, such as superhard tool materials (PCD and .CBN), ceramic tools, TiC (N)-based carbide tools (cermets) and coated tools, each have their own characteristics and application range. Competing with each other to promote the development and application of high-speed cutting technology. The country also has a certain foundation in this respect, and has made great progress. In particular, ceramic knives have a prominent advantage in China, but in general, there is a big gap with foreign countries. We seize the great opportunity of economic globalization and reform and opening up and bravely meet the severe challenges we face. In the different ways of using foreign mature technology to accelerate the development of China's high-speed cutting tool material industry, while focusing on the development of China's new generation of ceramic-based CBN composite tool materials and coating tool materials technology to promote China's high-speed and ultra-high speed The rapid development and popularization of cutting technology.
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