Title:
HOLLOW MEMBER, AND MANUFACTURING DEVICE AND MANUFACTURING METHOD THEREFOR
Document Type and Number:
WIPO Patent Application WO/2010/082584
Kind Code:
A1
Abstract:
Disclosed are a lightweight hollow member, which is highly strong, at e.g., 780 MPa or greater, has complex shapes applicable to automotive components, is highly rigid, and has excellent impact characteristics, and a manufacturing device and manufacturing method, which can form the hollow member by a simple process and have a relatively small and inexpensive molding machine. Disclosed is a manufacturing device (10) that is equipped with a feed unit (11) for feeding a hollow steel material (20) with a closed horizontal cross-sectional shape to the lengthwise direction thereof, a support unit (12), which supports this fed material (20) at a first position (A), a heating unit (13), which heats the material (20) at a second position (B), a horizontal cross-sectional shape change unit (14), which performs work to change the horizontal cross-sectional shape of the material (20) at a third position (C), and a cooling unit (15), which cools the material (20) at a fourth position (D).
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Inventors:
TOMIZAWA ATSUSHI (JP)
KUBOTA HIROAKI (JP)
KUBOTA HIROAKI (JP)
Application Number:
PCT/JP2010/050277
Publication Date:
July 22, 2010
Filing Date:
January 13, 2010
Export Citation:
Assignee:
SUMITOMO METAL IND (JP)
TOMIZAWA ATSUSHI (JP)
KUBOTA HIROAKI (JP)
TOMIZAWA ATSUSHI (JP)
KUBOTA HIROAKI (JP)
International Classes:
B21C37/15; B21B17/14; B21D7/08
Domestic Patent References:
| WO2006093006A1 | 2006-09-08 |
Foreign References:
| JP3871416B2 | 2007-01-24 | |||
| JP2008266694A | 2008-11-06 | |||
| JP3195083B2 | 2001-08-06 |
Other References:
JIDOSHA GIJUTSU, JOURNAL OF SOCIETY OF AUTOMOTIVE ENGINEERS OF JAPAN, vol. 57, no. 6, 2003, pages 23 - 28
See also references of EP 2399685A4
See also references of EP 2399685A4
Attorney, Agent or Firm:
HIROSE SHOICHI (JP)
Hirose Shoichi (JP)
Hirose Shoichi (JP)
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