High speed steel, cemented carbide, cermet, ceramic, polycrystalline cubic boron nitride and polycrystalline diamond.
Here mainly mentioned under the ceramic, ceramic cutting tools for carbide carbide time earlier, but because of its brittleness, the development is very slow. But since the last century, 70 years later, or have been relatively rapid development. Ceramic tool materials are two major lines, namely, alumina and silicon nitride. Ceramic as a tool, with low cost, high hardness, high temperature performance advantages, have a good prospect.
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