Brought from carbon tool steel cutter, high-speed steel cutting tools, carbide tools, ceramic tools to diamond and cubic boron nitride cutting tools, every innovative cutting tool materials processing industry gave almost a revolution. Especially in the last three decades, as the basic elements of cutting tool materials has been developing rapidly, using a variety of high-purity ultrafine oxide, new cutting tool material nitrides, carbides, borides and alloying elements emerging manufacturing, materials The physical and mechanical properties and cutting performance has been greatly improved, the application scope has been expanded. Development of new cutting tool materials such as nano-composite tools, nano-coated tools, Whisker ceramic knives, functionally gradient materials, such as modern cutting tool industry provides a new choice. Current international tool widely used materials are: high-speed steel cutting tools, carbide cutting tools, knives and other superhard, tool material grade up to a thousand.

    With the development of science and technology, engineering materials also raised higher and higher requirements. Application of tough lightweight materials, new aerospace materials, nuclear materials, composites, biomaterials, functional materials, nano-materials, rare earth materials, new metallic or non-metallic materials such as the increasingly widespread. Faced with such a wide variety of workpiece material, how to choose the right cutting tool materials, in order to improve machining productivity, reduce processing costs and reduce consumption of resources is a problem that needs attention.