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Patent Searching and Data


Title:
PRESS FORMING METHOD
Document Type and Number:
WIPO Patent Application WO/2020/195593
Kind Code:
A1
Abstract:
This press forming method includes a first drawing step for forming a first drawn step portion (40), a second drawing step for forming a second drawn step portion (60), and a finishing step for completing a stepped portion (20). In the first drawing step, a first outside curved portion (46p) is formed to the outside of a second outside curved portion (66p) with respect to an extension region (PF) of a character line (16), and a first parallel portion (44p) is formed to the same depth as the drawn depth of a second parallel portion (64p). In the second drawing step, a second inside curved portion (68p) having a greater curvature than a first inside curved portion (48p) is formed.

Inventors:
MATSUTANI KENJI (JP)
AKIBA HIROKATSU (JP)
SANO TAKESHI (JP)
OMIYA YOSHITAKE (JP)
Application Number:
PCT/JP2020/008795
Publication Date:
October 01, 2020
Filing Date:
March 03, 2020
Export Citation:
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Assignee:
HONDA MOTOR CO LTD (JP)
International Classes:
B21D22/26; B21D53/88
Foreign References:
JP2017030038A2017-02-09
JP2009056491A2009-03-19
JPS6257406B21987-12-01
JP2006015404A2006-01-19
Attorney, Agent or Firm:
CHIBA Yoshihiro et al. (JP)
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