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Title:
POLYCRYSTALLINE ABRASIVE GRAINS, AND GRINDING WHEEL PROVIDED WITH SAME
Document Type and Number:
WIPO Patent Application WO/2019/208640
Kind Code:
A1
Abstract:
Polycrystalline abrasive grains comprising multiple cBN particles and a binder capable of binding the multiple cBN particles to each other, wherein the binder comprises at least one component selected from a nitride, a carbide and a carbonitride of a metal selected from the group consisting of a metal belonging to Group 4a, a metal belonging to Group 5a and a metal belonging to Group 6a on the periodic table, and the content of the binder in the polycrystalline abrasive grain is 5 to 50 vol% inclusive.

Inventors:
HARADA, Takashi (5-33, Kitahama 4-chome, Chuo-ku, Osaka-sh, Osaka 41, 〒5410041, JP)
OKAMURA, Katsumi (5-33, Kitahama 4-chome, Chuo-ku, Osaka-sh, Osaka 41, 〒5410041, JP)
ISHII, Akito (5-33, Kitahama 4-chome, Chuo-ku, Osaka-sh, Osaka 41, 〒5410041, JP)
KUKINO, Satoru (1-1 Koyakita 1-chome, Itami-sh, Hyogo 16, 〒6640016, JP)
NAKAMURA, Nobuhide (1816-174 Kotaka, Kato-sh, Hyogo 21, 〒6790221, JP)
NAKAMURA, Tomokazu (1816-174 Kotaka, Kato-sh, Hyogo 21, 〒6790221, JP)
Application Number:
JP2019/017451
Publication Date:
October 31, 2019
Filing Date:
April 24, 2019
Export Citation:
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Assignee:
SUMITOMO ELECTRIC INDUSTRIES, LTD. (5-33, Kitahama 4-chome Chuo-ku, Osaka-sh, Osaka 41, 〒5410041, JP)
SUMITOMO ELECTRIC HARDMETAL CORP. (1-1 Koyakita 1-chome, Itami-shi Hyogo, 16, 〒6640016, JP)
A.L.M.T. CORP. (11-11, Shiba 1-chome Minato-k, Tokyo 14, 〒1050014, JP)
International Classes:
B24D3/00
Foreign References:
JPS62176769A1987-08-03
JPS6085869A1985-05-15
JP2015030816A2015-02-16
JPH0615571A1994-01-25
Attorney, Agent or Firm:
FUKAMI PATENT OFFICE, P.C. (Nakanoshima Festival Tower West, 2-4 Nakanoshima 3-chome, Kita-ku, Osaka-sh, Osaka 05, 〒5300005, JP)
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