CEMENTED CARBIDE AND CUTTING TOOL

Organization Name

sumitomo electric industries, ltd.

Inventor(s)

Yasuki Kido of Osaka-shi, Osaka JP

Yoshihiro Kimura of Osaka-shi, Osaka JP

Anongsack Paseuth of Osaka-shi, Osaka JP

CEMENTED CARBIDE AND CUTTING TOOL

This abstract first appeared for US patent application 20250101551 titled 'CEMENTED CARBIDE AND CUTTING TOOL

Original Abstract Submitted

provided is a cemented carbide comprising a plurality of tungsten carbide grains and a binder phase, wherein the cemented carbide comprises the tungsten carbide grains and the binder phase in a total of 89% by volume or more, the cemented carbide comprises 1.5% by volume or more and 23% by volume or less of the binder phase, the binder phase contains 40% by mass or more of cobalt, the binder phase further contains at least one first element selected from the group consisting of silicon, phosphorus, germanium, tin, rhenium, ruthenium, osmium, iridium, and platinum, the first element is not segregated in a first interface region between the tungsten carbide grains that are adjacent to each other, and the first element is not segregated in a second interface region between the tungsten carbide grain and binder phase that are adjacent to each other.