Login| Sign Up| Help| Contact|

Patent Searching and Data


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)
Application Number:
PCT/JP2017/032517
Publication Date:
March 14, 2019
Filing Date:
September 08, 2017
Export Citation:
Click for automatic bibliography generation   Help
Assignee:
NIPPON STEEL & SUMITOMO METAL CORP (JP)
International Classes:
B21D22/20; B21D24/04; B62D25/04
Foreign References:
JP2016068729A2016-05-09
JPH10316028A1998-12-02
JP2009241082A2009-10-22
JP2005212533A2005-08-11
JP2012024837A2012-02-09
JP2011147970A2011-08-04
JP2017159359A2017-09-14
JP2005212533A2005-08-11
JP2012024837A2012-02-09
JP2011050971A2011-03-17
JP2011147970A2011-08-04
Other References:
See also references of EP 3680036A4
Attorney, Agent or Firm:
TANAI Sumio et al. (JP)
Download PDF: