Title:
THIN PLATE PRESS MOLDING DEVICE AND THIN PLATE PRESS MOLDING METHOD
Document Type and Number:
WIPO Patent Application WO/2008/140122
Kind Code:
A1
Abstract:
Assuming at least any one of a punch and a die is a die to be measured, a press molding device has a distortion quantity measuring means, which is installed in the die to be measured and measures the quantity of distortion of the die due to press molding. When the die to be measured is located at the bottom dead center of molding, the distortion quantity measuring means is disposed closer to the press side than the die shoulder R stop on the material outflow side. Assuming the radius of curvature of a curved profile on the surface of the die to be measured is R, the distortion quantity measuring means is preferably installed in a region of 10xR from the center of curvature of the curved profile.
Inventors:
KUWAYAMA TAKUYA (JP)
SUZUKI NORIYUKI (JP)
SUZUKI NORIYUKI (JP)
Application Number:
PCT/JP2008/058982
Publication Date:
November 20, 2008
Filing Date:
May 09, 2008
Export Citation:
Assignee:
NIPPON STEEL CORP (JP)
KUWAYAMA TAKUYA (JP)
SUZUKI NORIYUKI (JP)
KUWAYAMA TAKUYA (JP)
SUZUKI NORIYUKI (JP)
International Classes:
B21D37/00; B21D24/00; B30B15/28
Foreign References:
| JP2005199336A | 2005-07-28 | |||
| JP2004249365A | 2004-09-09 | |||
| JP2005161399A | 2005-06-23 | |||
| JPH05337554A | 1993-12-21 | |||
| JP2004249365A | 2004-09-09 |
Other References:
JOURNAL OF CONFERENCE ON TECHNOLOGY OF PLASTICITY, 2006, pages 165 - 166
Attorney, Agent or Firm:
AOKI, Atsushi et al. (Toranomon 37 Mori Bldg. 5-1,Toranomon 3-chome, Minato-k, Tokyo 23, JP)
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