Title:
PRESS BENDING DEVICE OF METAL PLATE AND PRESS BENDING METHOD
Document Type and Number:
Japanese Patent JP2013086114
Kind Code:
A
Abstract:
To provide a press bending device for Mg alloy plate, or the like, and a press bending method using the press bending device, capable of, in a case where a metal plate of low ductility such as Mg alloy plate is locally heated for press bending, heating a bending portion locally and capable of easily exchanging a punch or a die (for example, V-shape punch or V-shape die).
A press bending device for a metal plate 1 includes a bending upper die and a bending lower die. In the press bending device for the metal plate 1, the bending upper die includes an intermediate body 3 which heats a punch 2 by a heater 10 that is incorporated, with the intermediate body 10 and the punch 2 being detachable from each other.
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Inventors:
TSUTSUMI KENJI
SHIMOKAWA YASUO
YAMAMOTO MARE
SHIMOKAWA YASUO
YAMAMOTO MARE
Application Number:
JP2011227580A
Publication Date:
May 13, 2013
Filing Date:
October 17, 2011
Export Citation:
Assignee:
TSUTSUMI IND INC
International Classes:
B21D5/02; B21D37/16
Domestic Patent References:
| JP2004050232A | 2004-02-19 | |||
| JP2001105029A | 2001-04-17 | |||
| JPS61205637U | 1986-12-25 | |||
| JP2008000795A | 2008-01-10 | |||
| JP2003048026A | 2003-02-18 | |||
| JPH04178220A | 1992-06-25 |
Foreign References:
| US5141586A | 1992-08-25 |
Attorney, Agent or Firm:
Eiichi Kobayashi
Suzuki Yoko
Suzuki Yoko
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