Title:
ROTATION TOOL
Document Type and Number:
WIPO Patent Application WO/2011/065468
Kind Code:
A1
Abstract:
Provided is a rotation tool such that thermal shock resistance is high, that the amount of cermet sintered body deformation resulting from burning can be made small, and that machining dimensional accuracy is high. The aforementioned rotation tool is formed of cermet (1) which consists of a hard phase (2) and a bonded phase (3), the aforementioned hard phase (2) being composed of a first hard phase (2a) having a high Ti content ratio and of a second hard phase (2b) having high content ratios of those metals in the fourth, fifth, and sixth groups of the periodic table which are other than Ti. When X-ray diffraction measurement is made on the surface of the cermet (1), detection is made of two peaks which belong to a surface (220) of the hard phase (2). An intensity ratio Ib/Ia is equal to 0.5 - 1.5, where Ia is a peak detected on a low angle side, and Ib is a peak detected on a high angle side. Furthermore, a surface region (4) consisting mainly of the first phase exists with a thickness of 1 - 10μ on the surface of the cermet (1); or a ratio ws/wi is equal to 1.1 - 1.7, where ws is the half-value width of a peak which belongs to a surface (200) of the bonded phase (3) on the surface of the cermet (1), and wi is the half-value width of a peak of the bonded phase inside the surface of the cermet (1).
Inventors:
KINOSHITA, Hideyoshi (Kagoshima Sendai Plant1810, Taki-cho, Satsumasendai-sh, Kagoshima 92, 〒8950292, JP)
木下 秀吉 (〒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)
木下 秀吉 (〒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:
JP2010/071099
Publication Date:
June 03, 2011
Filing Date:
November 26, 2010
Export Citation:
Assignee:
KYOCERA CORPORATION (6 Takeda Tobadono-cho, Fushimi-ku Kyoto-shi, 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)
KINOSHITA, Hideyoshi (Kagoshima Sendai Plant1810, Taki-cho, Satsumasendai-sh, Kagoshima 92, 〒8950292, 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)
KINOSHITA, Hideyoshi (Kagoshima Sendai Plant1810, Taki-cho, Satsumasendai-sh, Kagoshima 92, 〒8950292, JP)
International Classes:
B23C5/16; B23B51/00
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