Login| Sign Up| Help| Contact|

Patent Searching and Data


Title:
METHOD FOR MANUFACTURING PRESS-FORMED ARTICLE, PRESS-FORMED ARTICLE, AND PRESS-FORMING DEVICE
Document Type and Number:
WIPO Patent Application WO/2021/060274
Kind Code:
A1
Abstract:
This method for manufacturing a press-formed article (100) includes a first step for forming a baseplate portion, a first rising portion, and a first strip portion from a plate-shaped workpiece having a first edge portion and a second edge portion, and a second step for forming a second rising portion by sandwiching a strip-shaped first zone including the second edge portion from both sides using a first upper die and a first lower die, sandwiching a second zone adjacent to the first zone from both sides using a second upper die and a second lower die, and moving the first upper die and the first lower die relative to the second upper die and the second lower die, wherein, in the second step, a part of the second rising portion that is connected to a vertical ridge line (108) is shear deformed.

Inventors:
KURODA RYO (JP)
TANAKA YASUHARU (JP)
MIYAGI TAKASHI (JP)
OGAWA MISAO (JP)
Application Number:
PCT/JP2020/035792
Publication Date:
April 01, 2021
Filing Date:
September 23, 2020
Export Citation:
Click for automatic bibliography generation   Help
Assignee:
NIPPON STEEL CORP (JP)
International Classes:
B21D22/20; B21D22/26; B21D24/00; B21D37/08
Domestic Patent References:
WO2016194963A12016-12-08
Foreign References:
JP2006289453A2006-10-26
JP2002208384A2002-07-26
JPS63168231A1988-07-12
JP2013154389A2013-08-15
Attorney, Agent or Firm:
TANAI Sumio et al. (JP)
Download PDF: