Title:
HYDRAULIC MOLDING METHOD OF HOLLOW STRUCTURAL PARTS AND ITS STRUCTURE
Document Type and Number:
Japanese Patent JP3646688
Kind Code:
B2
Abstract:
PROBLEM TO BE SOLVED: To provide a hydraulic molding method of suspension members for cars which has no protrusion on the edge of the flange and has a good appearance quality of relatively smooth outline.
SOLUTION: A suspension member 1 is formed by swelling a laminated plate material 2 placed between the upper and lower molds using a hydraulic pressure. A indented part 11 is formed by advancing a presser 8 while the hydraulic pressure is rising, activating the pressure work on a part of a flange 7 and its vicinity, and forming a tip of the flange 7 (including a welded part 3) without protruding over an outer profile 13 of a general shape 10.
Inventors:
Shigeyuki Nakagawa
Hiroshi Todaka
Hiroshi Todaka
Application Number:
JP2001322993A
Publication Date:
May 11, 2005
Filing Date:
October 22, 2001
Export Citation:
Assignee:
Nissan Motor Co., Ltd
International Classes:
B62D25/20; B21D1/08; B21D22/02; B21D26/021; B21D26/031; B21D26/059; B21D51/16; B21D53/88; B62D21/00; (IPC1-7): B21D26/02; B21D1/08; B21D22/02; B21D51/16; B21D53/88; B62D21/00; B62D25/20
Domestic Patent References:
| JP5042338A | ||||
| JP2001225114A |
Attorney, Agent or Firm:
Tsuyoshi Hashimoto
Hiromichi Kobayashi
Tomioka Kiyoshi
Hiromichi Kobayashi
Tomioka Kiyoshi
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