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Patent Searching and Data


Title:
ABRASIVE MATERIAL
Document Type and Number:
WIPO Patent Application WO/2018/008551
Kind Code:
A1
Abstract:
The purpose of the present invention is to provide an abrasive material which can has relatively high machining efficiency while inhibiting damage to a workpiece caused when the workpiece falls in a groove, etc. The present invention is an abrasive material that comprises a base material, and an abrasive layer stacked on a surface side of the base material, and that is characterized in that: the abrasive layer contains abrasive grains and a binder for the abrasive grains, and includes multiple kinds of abrasive parts which show different abrasion amounts in the Taber abrasion test; a first abrasive part which shows the smallest abrasion amount among the multiple kinds of abrasive parts is surrounded by other abrasive parts; the ratio of the abrasion amounts of the other abrasive parts to the abrasion amount of the first abrasive part is at least 3; and the ratio of the area occupied by all the abrasive parts in the abrasive layer is 15-100% inclusive. The ratio of the area occupied by the first abrasive part in the abrasive layer is preferably 3-16% inclusive. The first abrasive part may contain diamond abrasive grains, and the content of the diamond abrasive grains in the first abrasive part is preferably 1-20 vol% inclusive.

Inventors:
INOUE Hiroaki (Ltd. 2647 Hayakawa, Ayase-sh, Kanagawa 23, 〒2521123, JP)
TAKEMURA Koji (Ltd. 2647 Hayakawa, Ayase-sh, Kanagawa 23, 〒2521123, JP)
IWANAGA Tomoki (6-6, Minatojima-Minamimachi 4-chome, Chuo-ku, Kobe-sh, Hyogo 47, 〒6500047, JP)
TAKAGI Daisuke (6-6, Minatojima-Minamimachi 4-chome, Chuo-ku, Kobe-sh, Hyogo 47, 〒6500047, JP)
SASASHIMA Keisuke (6-6, Minatojima-Minamimachi 4-chome, Chuo-ku, Kobe-sh, Hyogo 47, 〒6500047, JP)
TAURA Toshikazu (6-6, Minatojima-Minamimachi 4-chome, Chuo-ku, Kobe-sh, Hyogo 47, 〒6500047, JP)
Application Number:
JP2017/024164
Publication Date:
January 11, 2018
Filing Date:
June 30, 2017
Export Citation:
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Assignee:
SPEEDFAM CO., LTD. (2647, Hayakawa Ayase-sh, Kanagawa 23, 〒2521123, JP)
BANDO CHEMICAL INDUSTRIES, LTD. (6-6 Minatojima-Minamimachi 4-chome, Chuo-ku Kobe-sh, Hyogo 47, 〒6500047, JP)
International Classes:
B24D11/00; B24D3/00; B24D11/04
Attorney, Agent or Firm:
AMANO Kazunori (6th Floor Fujikogyo-Nishimotomachi Building, 1-18, Aioi-cho 1-chome, Chuo-ku, Kobe-sh, Hyogo 25, 〒6500025, JP)
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