Title:
GRINDING METHOD FOR HARD AND BRITTLE MATERIAL
Document Type and Number:
WIPO Patent Application WO/2011/016299
Kind Code:
A1
Abstract:
Provided is a grinding method for a hard and brittle material by which, when a hole is formed in the hard and brittle material using a grinding drill, the grinding time of the hard and brittle material can be shortened.
A grinding method for a hard and brittle material (2) by which a hole (3) is formed on a planar portion (17) of the substantially planar shaped hard and brittle material (2), using a grinding drill (7) which comprises a shank (20) functioning as a rotational shaft and provided with a grinding whetstone (21), wherein the method comprises a grinding step wherein a grinding surface (23) is provided on at least an outer peripheral surface of the grinding whetstone (21) around the shaft, the shaft center of the shank (20) of the grinding drill (7) is inclined with respect to the perpendicular line (P) of the planar portion (17) of the hard and brittle material (2), and the hard and brittle material (2) is ground by abutting the outer peripheral surface of the grinding whetstone (21)to the planar portion (17) of the hard and brittle material (2) and moving the grinding drill (7)in the direction of the perpendicular line (P).
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Inventors:
HIRABAYASHI Toshihiko (C/O KYOKUEIKENMA KAKO CO, LTD. 3-6-22 Hachiman-cho, Higashikurume-sh, Tokyo 42, 〒2030042, JP)
Application Number:
JP2010/060831
Publication Date:
February 10, 2011
Filing Date:
June 25, 2010
Export Citation:
Assignee:
KYOKUEIKENMA KAKO CO., LTD. (3-6-22, Hachiman-cho Higashikurume-sh, Tokyo 42, 〒2030042, JP)
旭栄研磨加工株式会社 (〒42 東京都東久留米市八幡町３丁目６番２２号 Tokyo, 〒2030042, JP)
旭栄研磨加工株式会社 (〒42 東京都東久留米市八幡町３丁目６番２２号 Tokyo, 〒2030042, JP)
International Classes:
B28D1/14; B24B19/03; B24D7/18; B28D1/18
Attorney, Agent or Firm:
SHIGENOBU Kazuo et al. (7F Admiral Kioicho Bldg, 3-28, Kioi-cho, Chiyoda-k, Tokyo 94, 〒1020094, JP)
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