PRODUCTION METHOD FOR CENTRE-PILLAR REINFORCEMENT - NIPPON STEEL & SUMITOMO METAL CORP

Title:

PRODUCTION METHOD FOR CENTRE-PILLAR REINFORCEMENT

Document Type and Number:

WIPO Patent Application WO/2014/050973

Kind Code:

A1

Abstract:

The purpose of the present invention is to satisfactorily produce a centre-pillar reinforcement using, as a blank, a high tensile material exhibiting low stretching properties. A centre-pillar reinforcement is produced by undergoing: a first step in which a first press working device with which draw forming is performed is used to perform press working on a blank, thereby producing a first intermediate moulded article in which a main body is partially formed; and a second step in which a second press working device with which bending is performed is used to perform press working on the first intermediate moulded article.

Inventors:

MIYAGI TAKASHI (JP)
TANAKA YASUHARU (JP)
OGAWA MISAO (JP)
ASO TOSHIMITSU (JP)
MISAWA KEI (JP)
YOSHIDA HIROSHI (JP)
HONDA KAZUHIKO (JP)

Application Number:

PCT/JP2013/076076

Publication Date:

April 03, 2014

Filing Date:

September 26, 2013

Export Citation:

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Assignee:

NIPPON STEEL & SUMITOMO METAL CORP (JP)

International Classes:

B21D22/26; B21D5/01; B21D22/20; B21D24/04; B21D53/88; B62D25/04

Domestic Patent References:

WO2011071434A1	2011-06-16
WO2012070623A1	2012-05-31

Foreign References:

JP2003103306A	2003-04-08
JP2004154859A	2004-06-03
JP2006015404A	2006-01-19
JP2008307557A	2008-12-25
JP2003103306A	2003-04-08
JP2004154859A	2004-06-03
JP2006015404A	2006-01-19
JP2008307557A	2008-12-25

Other References: