METHOD OF MANUFACTURING COMPONENT HAVING HAT-SHAPED CROSS SECTION

Title:

METHOD OF MANUFACTURING COMPONENT HAVING HAT-SHAPED CROSS SECTION

Document Type and Number:

WIPO Patent Application WO/2015/098871

Kind Code:

A1

Abstract:

A method of manufacturing a component having a hat-shaped cross section comprises: a supporting step in which a provisionally formed product having a hat-shaped cross section is disposed between a restrike punch and a restrike die, and a top sheet of the provisionally formed product is supported by means of a supporting member which extends from the restrike punch; a positioning step in which the top sheet is accommodated in the interior of a first recessed portion of a forming recessed portion formed in the restrike die, the top sheet being sandwiched between the supporting member and the restrike die, and in which the provisionally formed product is positioned in the width direction by means of the first recessed portion and a pair of vertical walls of the provisionally formed product; and a restrike step in which the restrike punch is inserted into a second recessed portion in the forming recessed portion, and restriking of the provisionally formed product is performed by means of the restrike punch and the restrike die.

Inventors:

TANAKA YASUHARU (JP)
ASO TOSHIMITSU (JP)
OGAWA MISAO (JP)
MIYAGI TAKASHI (JP)
YAMAMOTO SHINOBU (JP)

Application Number:

PCT/JP2014/083966

Publication Date:

July 02, 2015

Filing Date:

December 22, 2014

Export Citation:

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Assignee:

NIPPON STEEL & SUMITOMO METAL CORP (JP)

International Classes:

B21D22/26; B21D5/01

Foreign References:

JP2008307557A	2008-12-25
JPS6074811U	1985-05-25
JP2011025263A	2011-02-10
JPS5966939A	1984-04-16
JPS6384730A	1988-04-15
JPS4311399B1
JP2012232329A	2012-11-29
JPH09141368A	1997-06-03
JP2003103306A	2003-04-08
JP2004154859A	2004-06-03
JP2006015404A	2006-01-19
JP2008307557A	2008-12-25

Other References: