Title:
METHOD FOR BENDING SHEET METAL AND PRODUCT OF SHEET METAL
Document Type and Number:
WIPO Patent Application WO/2012/118223
Kind Code:
A1
Abstract:
A method for bending a sheet metal, which comprises: a hardness adjustment step wherein a blank (10) that has a high hardness region (11) and a low hardness region (12) having a lower hardness than the high hardness region (11) is formed by changing the hardness of at least a part of a sheet metal; and a bending step wherein a product (20) is formed by bending the low hardness region (12) of the blank (10).
Inventors:
MIZUMURA MASAAKI (JP)
SATO KOICHI (JP)
SHIRAKAMI SATOSHI (JP)
SATO KOICHI (JP)
SHIRAKAMI SATOSHI (JP)
Application Number:
PCT/JP2012/055590
Publication Date:
September 07, 2012
Filing Date:
March 05, 2012
Export Citation:
Assignee:
NIPPON STEEL CORP (JP)
MIZUMURA MASAAKI (JP)
SATO KOICHI (JP)
SHIRAKAMI SATOSHI (JP)
MIZUMURA MASAAKI (JP)
SATO KOICHI (JP)
SHIRAKAMI SATOSHI (JP)
International Classes:
B21D22/20; B21D5/02; B21D5/08; B21D24/00
Foreign References:
| JP2010075935A | 2010-04-08 | |||
| JP2005169394A | 2005-06-30 | |||
| JP2003019516A | 2003-01-21 | |||
| JPH05177366A | 1993-07-20 | |||
| JPH01233019A | 1989-09-18 | |||
| JPS63502733A | 1988-10-13 | |||
| JP2010036208A | 2010-02-18 | |||
| JP2010179317A | 2010-08-19 | |||
| JP2004276078A | 2004-10-07 | |||
| JPH05215U | 1993-01-08 | |||
| JPH026019A | 1990-01-10 | |||
| JPS63188426A | 1988-08-04 |
Other References:
See also references of EP 2682199A4
Attorney, Agent or Firm:
AOKI, Atsushi et al. (JP)
Aoki 篤 (JP)
Aoki 篤 (JP)
Download PDF:
Claims:
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