BLANK, MOLDED PLATE, METHOD OF MANUFACTURING PRESS-MOLDED PRODUCT AND PRESS-MOLDED PRODUCT

Title:

BLANK, MOLDED PLATE, METHOD OF MANUFACTURING PRESS-MOLDED PRODUCT AND PRESS-MOLDED PRODUCT

Document Type and Number:

WIPO Patent Application WO/2014/185428

Kind Code:

A1

Abstract:

This blank (30) is the material of an elongate press-molded product (20) formed from: a first component (21), which has a substantially hat-shape cross-sectional surface, comprising a top plate (20a), a ridge line (20b), vertical walls (20c), and flanges (20d), the width of the top plate being substantially constant; and a second component (22) which has a curved section (23) in which the vertical walls (20c), the ridge line (20b), and the flanges (20d) are curved and the top plate gradually widens, whereby the top plate (20a) exhibits an L-shape seen in plan view. As the expanded shape of the press-molded product (20), this blank (30) comprises a first recessed part (33), a protruding part (34) and a second recessed part (35) disposed on the edge of an excess material portion (32) added to the edge of a site formed on the flange (20d) configuring the curved portion (23).

Inventors:

MIYAGI TAKASHI (JP)
MISAWA KEI (JP)
TANAKA YASUHARU (JP)
OGAWA MISAO (JP)
ASO TOSHIMITSU (JP)

Application Number:

PCT/JP2014/062750

Publication Date:

November 20, 2014

Filing Date:

May 13, 2014

Export Citation:

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Assignee:

NIPPON STEEL & SUMITOMO METAL CORP (JP)

International Classes:

B21D22/26; B21D5/01; B21D53/88

Domestic Patent References:

WO2011145679A1	2011-11-24
WO2012070623A1	2012-05-31

Foreign References:

JPH07290159A	1995-11-07
JP5161214B2	2013-03-13
JPH08103828A	1996-04-23
JP2010036217A	2010-02-18
JP2003103306A	2003-04-08
JP2004154859A	2004-06-03
JP2006015404A	2006-01-19
JP2008307557A	2008-12-25
JP2011145679A	2011-07-28
JP5168429B2	2013-03-21

Other References: