Title:
CHAMFERING DEVICE AND CHAMFERING METHOD FOR METALLIC MATERIAL
Document Type and Number:
WIPO Patent Application WO/2008/136515
Kind Code:
A1
Abstract:
Provided is a chamfering device capable of executing the corner portion of a metallic
material or a metallic structure member under economical, efficient and satisfactory
working environments. The chamfering device for the metallic material comprises
a chamfering oscillation terminal extending at the leading end portion of the
oscillating direction of an oscillating device and in the direction perpendicular
to the oscillating direction and including a bottom portion having a section
of a radius of curvature (R) normal to that extending direction and a groove opened
toward leading end side, and that oscillating device for vibrating the oscillation
terminal in the axial direction thereof in a frequency of 10 Hz to 50 KHz and in a
power of 0.1 to 4 KW.
Inventors:
NOSE, Tetsuro (6-3 Otemachi 2-chome, Chiyoda-k, Tokyo 71, 1008071, JP)
野瀬哲郎 (〒71 東京都千代田区大手町二丁目６番３号新日本製鐵株式会社内 Tokyo, 1008071, JP)
野瀬哲郎 (〒71 東京都千代田区大手町二丁目６番３号新日本製鐵株式会社内 Tokyo, 1008071, JP)
Application Number:
JP2008/058446
Publication Date:
November 13, 2008
Filing Date:
April 25, 2008
Export Citation:
Assignee:
NIPPON STEEL CORPORATION (6-3 Otemachi 2-chome, Chiyoda-ku Tokyo, 71, 1008071, JP)
新日本製鐵株式会社 (〒71 東京都千代田区大手町二丁目６番３号 Tokyo, 1008071, JP)
NOSE, Tetsuro (6-3 Otemachi 2-chome, Chiyoda-k, Tokyo 71, 1008071, JP)
新日本製鐵株式会社 (〒71 東京都千代田区大手町二丁目６番３号 Tokyo, 1008071, JP)
NOSE, Tetsuro (6-3 Otemachi 2-chome, Chiyoda-k, Tokyo 71, 1008071, JP)
International Classes:
B21D19/00; B21D22/02; B23D79/00
Attorney, Agent or Firm:
AOKI, Atsushi et al. (SEIWA PATENT & LAW, Toranomon 37Mori Bldg., 5-1, Toranomon 3-chom, Minato-ku Tokyo 23, 1058423, JP)
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