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Title:
CUTTING METHOD FOR SURFACE-TREATED STEEL SHEET
Document Type and Number:
Japanese Patent JP2020040192
Kind Code:
A
Abstract:
To provide a cutting method that makes plating metal run to a cut end surface of a surface-treated steel sheet and that can reduce the size of a burr.SOLUTION: In a cutting method of the present invention, a surface-treated steel sheet 100, the front side and back side of which are coated with plating metal, is passed between a pair of disc-shaped rotary blades 1, and the surface-treated steel sheet 100 is cut by a shearing force. In the rotary blade 1, a sloped surface 10 having a predetermined slope is provided near an outer periphery of one surface on the cut surface side of the surface-treated steel sheet 100. At the tip of the rotary blade 1, an angulate corner part 30 comprising the sloped surface 10 and an outer peripheral surface 20 of the rotary blade 1 is provided on the cut surface side.SELECTED DRAWING: Figure 3

Inventors:
YOSHIDA TAKAYUKI
Application Number:
JP2018171925A
Publication Date:
March 19, 2020
Filing Date:
September 13, 2018
Export Citation:
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Assignee:
NIPPON STEEL NISSHIN CO LTD
International Classes:
B23D19/06
Domestic Patent References:
JPS57197415U1982-12-15
JP2018075600A2018-05-17
JPS58173426U1983-11-19
JPH06134614A1994-05-17
JP2004034183A2004-02-05
JP2017192989A2017-10-26
Foreign References:
US3612367A1971-10-12
Attorney, Agent or Firm:
Hayashi Kazuyoshi
Akihiro Kitamura