Title:
PRESS FORMING METHOD
Document Type and Number:
WIPO Patent Application WO/2014/132545
Kind Code:
A1
Abstract:
This press forming method forms a formed component provided with a top sheet section (5) which has a protruding outer edge (3) in which a portion of the outer edge protrudes outward and a flange section (7) which is formed by bending along the protruding outer edge (3) on the top sheet section (5), and involves: a first forming step for forming, on a site on a blank material (9) where the flange section (7) is to be formed, an intermediate shape component (15) which includes a longitudinal wall section (11) serving as a portion of the flange section (7) and a valley-shaped section (13) folded outward from the longitudinal wall section (11) and concaved on the top sheet-side thereof; and a second forming step for forming the flange section by bending the site which includes the valley-shaped section (13) of the intermediate shape component (15) formed in the first forming step.
Inventors:
URABE MASAKI (JP)
Application Number:
PCT/JP2013/085227
Publication Date:
September 04, 2014
Filing Date:
December 27, 2013
Export Citation:
Assignee:
JFE STEEL CORP (JP)
International Classes:
B21D19/08; B21D22/26
Foreign References:
| JP2004188445A | 2004-07-08 | |||
| JPS62107827A | 1987-05-19 | |||
| JPS6127125A | 1986-02-06 | |||
| JP2007253173A | 2007-10-04 | |||
| JPH0739954A | 1995-02-10 | |||
| JP2010201486A | 2010-09-16 |
Other References:
See also references of EP 2962778A4
Attorney, Agent or Firm:
SAKAI, HIROAKI (JP)
Hiroaki Sakai (JP)
Hiroaki Sakai (JP)
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