Title:
HOT STAMPING MOLDED ARTICLE AND METHOD AND DEVICE FOR MANUFACTURING HOT STAMPING MOLDED ARTICLE
Document Type and Number:
WIPO Patent Application WO/2019/049322
Kind Code:
A1
Abstract:
Provided is a steel hot stamping molded article having: at least one of a tensile strength of 1200 MPa or higher and a martensitic steel structure; and a first part, a corner, and a second part which are sequentially contiguous from one end to the other end in a longitudinal direction, wherein the hot stamping molded article is characterized in that, in a cross-section view perpendicular to the longitudinal direction, each of the first part, the corner, and the second part has a top plate, and two vertical walls which are connected to the top plate, in that the second part has a first outward flange which is adjacent to the vertical walls, and in that the corner has a vertical flange which extends from the vertical walls of the first part, a second outward flange which is adjacent to one of the two vertical walls located on the outer peripheral side of the corner, and a transition part to which the vertical flange and the second outward flange are contiguous.
Inventors:
OTSUKA KENICHIRO (JP)
KASEDA YOSHIYUKI (JP)
NAKAZAWA YOSHIAKI (JP)
KASEDA YOSHIYUKI (JP)
NAKAZAWA YOSHIAKI (JP)
Application Number:
PCT/JP2017/032517
Publication Date:
March 14, 2019
Filing Date:
September 08, 2017
Export Citation:
Assignee:
NIPPON STEEL & SUMITOMO METAL CORP (JP)
International Classes:
B21D22/20; B21D24/04; B62D25/04
Foreign References:
JP2016068729A | 2016-05-09 | |||
JPH10316028A | 1998-12-02 | |||
JP2009241082A | 2009-10-22 | |||
JP2005212533A | 2005-08-11 | |||
JP2012024837A | 2012-02-09 | |||
JP2011147970A | 2011-08-04 | |||
JP2017159359A | 2017-09-14 | |||
JP2005212533A | 2005-08-11 | |||
JP2012024837A | 2012-02-09 | |||
JP2011050971A | 2011-03-17 | |||
JP2011147970A | 2011-08-04 |
Other References:
See also references of EP 3680036A4
Attorney, Agent or Firm:
TANAI Sumio et al. (JP)
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