Title:
FORGING DEVICE AND FORGING METHOD
Document Type and Number:
WIPO Patent Application WO/2014/185138
Kind Code:
A1
Abstract:
Provided are a forging device and forging method using the same, for processing a raw material into a bottomed cylindrical shape with high precision by forging the raw material by a simple operation in a short time. A forging device for molding a raw material for forging, the forging device having a top die (12) and bottom die (14) for compressing a raw material (5) therebetween, a top punch (11) provided so as to be able to penetrate through a first hole part (12d) formed in the top die (12), a bottom punch (13) provided so as to be able to penetrate through a second hole part (14d) formed in the bottom die (14), and a drive control part (control part (110), drive part (160)) for controlling driving of the top and bottom dies and controlling driving of the top punch and/or the bottom punch. In accordance with the amount of reduction of the thickness of a raw material portion compressed by the top punch (11) and the bottom punch (13), drive control is performed for moving the raw material portion compressed by the top die (12) and the bottom die (14) toward the top die (12) in a state in which the thickness of the raw material portion compressed by the top die (12) and the bottom die (14) is substantially maintained, and adding to a cylindrical part formed by causing material to flow in a gap between the top punch (11) and the second hole part (14d).
Inventors:
KANEKO SHUHEI (JP)
Application Number:
PCT/JP2014/056257
Publication Date:
November 20, 2014
Filing Date:
March 11, 2014
Export Citation:
Assignee:
KAGA INC (JP)
International Classes:
B21K21/02; B21D5/02
Foreign References:
| JPH071067A | 1995-01-06 | |||
| JP2006272458A | 2006-10-12 | |||
| JP2001137961A | 2001-05-22 | |||
| DE1452495A1 | 1969-03-27 |
Attorney, Agent or Firm:
EICHI Patent & Trademark Corp. (JP)
Patent business corporation Wisdom international patent firm (JP)
Patent business corporation Wisdom international patent firm (JP)
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