Cemented carbide and cutting tool using same

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United States of America Patent

PATENT NO 8801816
APP PUB NO 20120144753A1
SERIAL NO

13390841

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Abstract

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There are provided a cemented carbide high in thermal diffusivity and excellent in wear resistance, and a cutting tool including a base material formed of this cemented carbide. The cemented carbide is a WC based cemented carbide in which a hard phase mainly constituted of WC grains is bound by a binder phase mainly constituted of Co, and is used for a cutting tool. The binder phase is substantially constituted of Co, or Co and Ni. A total content of Co and Ni is not less than 4.5 mass % and not more than 15 mass %. In this cemented carbide, the WC grains have an average diameter of not less than 0.4 μm and not more than 4 μm.

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Patent Owner(s)

Patent OwnerAddress
SUMITOMO ELECTRIC HARDMETAL CORP1-1 KOYAKITA 1-CHOME ITAMI-SHI HYOGO 664-0016

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Inventor(s)

Inventor Name Address # of filed Patents Total Citations
Hirose, Kazuhiro Itami, JP 40 349
Ikegaya, Akihiko Itami, JP 53 1244
Moriguchi, Hideki Itami, JP 51 870
Okuno, Takuya Itami, JP 34 290
Sasaya, Kazuo Toyama, JP 6 13
Yamamoto, Yoshiharu Toyama, JP 79 794

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