Blunt Cutting Insert

Indexable inserts of a turning tool are manufactured from a cemented carbide by the process of powder metallurgy, where the mixture of carbide powders and a binder is compressed and then sintered at a temperature higher than the melting point of the binder. Wear of the cutting edge in the form of a groove was caused by abrasion and diffusion between the outgoing chip and the tool's edge.

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blunt cutting insert inventions materials physics metallurgy