Classification Of Tool Materials
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Classification Of Tool Materials


Classification of tool materials

1. Classification: common cutting tool materials in the industry include high-speed steel, carbide, polycrystalline cubic boron nitride (PCBN), polycrystalline diamond (PCD)and so on. 2.Advantages and disadvantages 1) High-speed steel tool: its advantage is the bending strength is higher and more used in the occasion of greater impact. On the other hand, the price of this tool is generally lower. Its disadvantage is low hardness, so wear resistance and red hardness is poor. It is not suitable for high-speed cutting. Therefore, this tool is generally used for rough machining. There are many kinds of high-speed steels with different chemical composition and different properties. 2)Carbide tool: its hardness can reach about HRA90, wear resistance and red hardness are better, but its impact resistance is poor. 3) PCBN tool: good impact resistance, especially in the rough machining field. But the material is not suitable for processing steel below 45HRC because it is easy to produce adhesive wear and crack. 4) PCD tool: this tool has high wear resistance and low friction to do sharp edge grinding with a good machining surface reaching 0.2 smoothness. At the same time, the hardness can reach more than 10000HV to cut carbide, industrial ceramics, and other high hardness products. The disadvantage is that the price is too high. pcd tool
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