Title:
METHOD FOR IDENTIFYING PORTION CAUSING INCREASE IN FORMING LOAD, METHOD FOR MANUFACTURING PRESS FORMED PART, DEVICE FOR IDENTIFYING PORTION CAUSING INCREASE IN FORMING LOAD, AND PROGRAM FOR IDENTIFYING PORTION CAUSING INCREASE IN FORMING LOAD
Document Type and Number:
WIPO Patent Application WO/2024/075380
Kind Code:
A1
Abstract:
The method for identifying a portion causing an increase in a forming load according to the present invention comprises: step S1 for setting an evaluation region in a press-forming die model 15; step S3 for calculating the forming load distribution of the press-forming die model 15; step S5 for calculating a load evaluation value for each evaluation region; step S7 for changing the deformation resistance of one evaluation region in the press-forming die model, and calculating the load evaluation value of the evaluation region in which the deformation resistance has been changed; and step S9 for identifying an evaluation region in which the load evaluation value varies before and after the deformation resistance change of the press-forming die model, and identifying the portion of a press formed part 1 corresponding to the identified evaluation region as a portion that causes an increase in the forming load.
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Inventors:
OGIHARA YUKI (JP)
KISHIGAMI YASUHIRO (JP)
KISHIGAMI YASUHIRO (JP)
Application Number:
PCT/JP2023/028255
Publication Date:
April 11, 2024
Filing Date:
August 02, 2023
Export Citation:
Assignee:
JFE STEEL CORP (JP)
International Classes:
B21D22/00
Foreign References:
| JP2019098390A | 2019-06-24 | |||
| JP2016020000A | 2016-02-04 |
Attorney, Agent or Firm:
SAKAI INTERNATIONAL PATENT OFFICE (JP)
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