Title:
PRESS FORMING METHOD
Document Type and Number:
Japanese Patent JP2013220444
Kind Code:
A
Abstract:
To provide a press forming method by which an edge caused by drilling is not in contact with a formed body so as to improve reliability.
In a press forming method which forms a formed article by holding the formed article arranged in between by an upper die and a lower die, the upper die and the lower die include a plurality of oil supply members arranged on a formed article side when the formed article is held. The upper die and the lower die include internal flow channels for flowing lubricant inside. When the lubricant flowing in the internal flow channels flows out to the formed article side through the oil supply members, the formed article, the upper die, and the lower die are lubricated.
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Inventors:
FUJI SHUJI
NAKAMURA KENICHI
NAKAMURA KENICHI
Application Number:
JP2012093475A
Publication Date:
October 28, 2013
Filing Date:
April 17, 2012
Export Citation:
Assignee:
HITACHI APPLIANCES INC
International Classes:
B21D24/00; B21D22/28; B21D37/18
Attorney, Agent or Firm:
Manabu Inoue
Yuji Toda
Shigemi Iwasaki
Yuji Toda
Shigemi Iwasaki