SINTERED CERMET AND CUTTING TOOL - KYOCERA CORPORATION

Title:

SINTERED CERMET AND CUTTING TOOL

Document Type and Number:

WIPO Patent Application WO/2010/035824

Kind Code:

A1

Abstract:

A sintered cermet and a cutting tool are provided which have high toughness and high chipping resistance. The sintered cermet comprises: a rigid phase containing titanium as a major component and comprising one or more members selected from carbides, nitrides, and carbonitrides of one or more metals selected from the metals belonging to Groups 4, 5, and 6 of the periodic table; and bonding phases comprising nickel and cobalt as major components. The bonding phases are present in an inner part of the cermet and are of two kinds having two crystal lattice constants B1 and B2 when examined for crystal lattice constant by the Pawley method. Alternatively, an inner part of the cermet gives two peaks assigned to the (220) plane of the rigid phase, i.e., a smaller-angle-side peak and a larger-angle-side peak, and a modified part is present near the surface of the cermet, the modified part giving three peaks assigned to the (220) plane of the rigid phase, i.e., the smaller-angle-side peak, an intermediate-position peak, and the larger-angle-side peak.

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Inventors:

TOKUNAGA,Takashi (Kagoshima Sendai Plant1810, Taki-cho, Satsumasendai-sh, Kagoshima 92, 〒8950292, JP)
徳永　隆司 (〒92 鹿児島県薩摩川内市高城町１８１０番地　京セラ株式会社鹿児島川内工場内 Kagoshima, 〒8950292, JP)

Application Number:

JP2009/066739

Publication Date:

April 01, 2010

Filing Date:

September 28, 2009

Export Citation:

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Assignee:

KYOCERA CORPORATION (6 Takeda Tobadono-cho, Fushimi-ku Kyoto-sh, Kyoto 01, 〒6128501, JP)
京セラ株式会社 (〒01 京都府京都市伏見区竹田鳥羽殿町６番地 Kyoto, 〒6128501, JP)
TOKUNAGA,Takashi (Kagoshima Sendai Plant1810, Taki-cho, Satsumasendai-sh, Kagoshima 92, 〒8950292, JP)

International Classes:

B23B27/14; B23B51/00; B23C5/16; C22C29/04

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