Title:
せん断金型およびプレス成形方法
Document Type and Number:
Japanese Patent JP7283570
Kind Code:
B2
Abstract:
Provided is a shearing die for preventing damage of a die tool in shearing of a super-high-tension steel sheet and a press-forming method using the same. The shearing die for shearing a metal sheet in a direction intersecting a first-sheared edge of the metal sheet in press-working including a plurality of shearing processes to produce a formed article from the metal sheet by press-forming, in which the shearing die comprises a fitting part that can detach a shearing blade in the vicinity of a region coming in contact with an end of the first-sheared edge.
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Inventors:
Hiroto Miyake
Toyohisa Shingu
Toyohisa Shingu
Application Number:
JP2021555514A
Publication Date:
May 30, 2023
Filing Date:
December 22, 2020
Export Citation:
Assignee:
JFE Steel Corporation
International Classes:
B21D37/02; B21D22/20; B21D22/26
Domestic Patent References:
| JP5007944A | ||||
| JP2012096241A | ||||
| JP1164745A | ||||
| JP58009227U | ||||
| JP11254054A | ||||
| JP2001015665A | ||||
| JP2000126900A | ||||
| JP2012170994A |
Attorney, Agent or Firm:
Patent Attorney Ginza Maronnier Patent Office
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