BENT MEMBER AND METHOD FOR MANUFACTURING SAME

Title:

BENT MEMBER AND METHOD FOR MANUFACTURING SAME

Document Type and Number:

WIPO Patent Application WO/2011/040623

Kind Code:

A1

Abstract:

Disclosed is a method for forming a bent member, which comprises a bending step for bending blanks (1, 2) in the bending profile shape corresponding to the bending of a bent member (30) in the length direction into the cross-section shape corresponding to a cross-section shaped split part of the bent member, and a joining step for joining two (or three or more) members (10, 20) obtained by the bending step. In conventional methods for forming bent members, when a single plate of a high-strength steel plate is used as a raw material, the forming into a desired bent member cannot be obtained in integral press forming, or when a single plate of a low-strength steel plate is used as the raw material, the forming into the bent member can be obtained, but an increase in the weight caused by an increase in reinforcement components is created because the shortage of member strength is created, resulting in insufficient component strength.

Inventors:

FUTATSUKA TAKAYUKI (JP)
HIGAI KAZUHIKO (JP)
TAMAI YOSHIKIYO (JP)
HIRA TAKAAKI (JP)
FUJITA TAKESHI (JP)
YAMASAKI YUJI (JP)

Application Number:

PCT/JP2010/067312

Publication Date:

April 07, 2011

Filing Date:

September 28, 2010

Export Citation:

Click for automatic bibliography generation Help

Assignee:

JFE STEEL CORP (JP)
FUTATSUKA TAKAYUKI (JP)
HIGAI KAZUHIKO (JP)
TAMAI YOSHIKIYO (JP)
HIRA TAKAAKI (JP)
FUJITA TAKESHI (JP)
YAMASAKI YUJI (JP)

International Classes:

B21D51/16; B21D5/01

Foreign References:

JPS4536410B1
JPH081243A	1996-01-09
JP2009202233A	2009-09-10
JPH06328988A	1994-11-29
JP2003523285A	2003-08-05

Other References: