Title:
ロールフォーム成形された部品を製造する方法及びその方法によって製造された部品
Document Type and Number:
Japanese Patent JP4581001
Kind Code:
B2
Abstract:
This invention pertains to a process for producing shaped components from high-strength and ultra high-strength steels with tensile strengths > 780 MPa, wherein a steel sheet-metal strip 2 is fed to a roll-forming installation and in the roll-forming installation is passed through roll stands (11, 12) and deformed by means of deformation rollers acting on the steel sheet, and wherein to avoid hydrogen embrittlement in plastically deformed regions of the deformed steel sheet-metal strip compressive stresses are introduced by stamping and/or upset-forging and/or bending and/or overbending and bending-back or by machining the strip edges.
Inventors:
Gerhard Rengauer
Robert Wurza
Christoph Bauernberger
Franz Weiz
Christoph Dockner
Kenichi Watanabe
Yasuhiro Hayashida
Okumura Masayoshi
Hiroki Nakayama
Robert Wurza
Christoph Bauernberger
Franz Weiz
Christoph Dockner
Kenichi Watanabe
Yasuhiro Hayashida
Okumura Masayoshi
Hiroki Nakayama
Application Number:
JP2008097573A
Publication Date:
November 17, 2010
Filing Date:
April 03, 2008
Export Citation:
Assignee:
Fest Alpine Krems Game Behr
KABUSHIKI KAISHA KOBE SEIKO SHO
KABUSHIKI KAISHA KOBE SEIKO SHO
International Classes:
B21D5/08; B21D5/12; B21D19/00; B23K9/025; B23K9/035; B23P13/00; B23K101/06
Domestic Patent References:
| JP9323130A | ||||
| JP2006082099A | ||||
| JP4075615U | ||||
| JP2001162324A |
Attorney, Agent or Firm:
Etsushi Kotani
Masataka Otani
Muramatsu Toshiro
Masataka Otani
Muramatsu Toshiro