Kennametal Inc.

Terry Wayne Kirk

Qingjun Zheng

Debangshu Banerjee

Xin Deng

Hongbo Tian

Brian R Nussbaum

Jon W Bitler

Carbide pellets including relatively small amounts of metallic binder are produced by steps of pressing, comminuting, shaping and sintering. The carbide pellets may be used as wear resistant hard facing materials that are applied to various types of tools. The carbide pellets provide improved mechanical properties such as hardness and abrasiveness while maintaining required levels of toughness and strength.

Carbide pellets for wear resistant applications

A hard composite cutting insert useful for cutting strata such as earth or rock that includes a body that is tough. The body contains a member that is harder than the body (i.e., has a harder region). The combination of the tough body with the harder member (or region) embedded therein provides a hard composite cutting insert with advantageous properties when used in conjunction with a bit body for impinging upon, and thereby disintegrating, the earth strata.

Hard composite cutting insert and method of making the same

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Fayetteville, AR, United States of America

Terry Wayne Kirk