Abstract
Quality requirements for the manufacturing parts made of hard-to-machine materials with cutting tools are quite high. At the same time, modern carbide cutting tools are not always able to maintain working capacity throughout the entire mechanical operation, providing these requirements. The article considers test results of replaceable carbide plates during finish processing of a heat resistant alloy. Carbide plates were sharpened with ultra high speed grinding, and then hardened with Al-Si-N coating, which made it possible to obtain tool blade sharpness ρ = 3...5 μm and to achieve resistance several times higher compared to a similar tool.
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