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Patent Searching and Data


Title:
DAMAGE EVALULATION DEVICE AND DAMAGE EVALULATION METHOD FOR PRESS-FORMING DIES
Document Type and Number:
WIPO Patent Application WO/2022/196385
Kind Code:
A1
Abstract:
This damage evaluation device for press-forming dies according to the present invention comprises: an evaluation die installed in a press machine for press-forming a metal material; and an observation device for observing damage behaviors of steel for a die constituting the evaluation die, and a surface coating. The evaluation die comprises: a drilling means for forming a hole in a metal material; a first shearing means for shearing the metal material having the hole into an arbitrary metal product shape; and a second shearing means for cutting off the metal product from the metal material. The die of the drilling means, the first shearing means, and the second shearing means is formed of steel for dies, and has arbitrary material quality, and a structure that enables replacement by another die which has undergone an arbitrary surface coating treatment.

Inventors:
MIYAKE HIROTO (JP)
Application Number:
PCT/JP2022/009295
Publication Date:
September 22, 2022
Filing Date:
March 04, 2022
Export Citation:
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Assignee:
JFE STEEL CORP (JP)
International Classes:
B21D37/00; B21D22/20; B21D22/26; B21D37/01
Foreign References:
KR20210000480A2021-01-05
JP2018164936A2018-10-25
JP2015048651A2015-03-16
JPH0721216U1995-04-18
JP5135479B22013-02-06
JP2011189419A2011-09-29
JP4737606B22011-08-03
JP4677804B22011-04-27
JP2010167437A2010-08-05
JP5135479B22013-02-06
JP2011189419A2011-09-29
JP4737606B22011-08-03
JP4677804B22011-04-27
JP2010167437A2010-08-05
Attorney, Agent or Firm:
SAKAI INTERNATIONAL PATENT OFFICE (JP)
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