Title:
A METHOD OF FABRICATION OF AUTOMOBILE PARTS
Document Type and Number:
WIPO Patent Application WO/2008/001120
Kind Code:
A3
Abstract:
The present invention relates to a method of fabricating a structural panel of an automobile by shaping a metal sheet using a die tool wherein: the structural panel is formed with one or more lines of curvature (100, 101, 102) running therealong; the panel is provided with a plurality of form-holding features (21, 25) in each of which plastic strain applied to the metal sheet during shaping is greater than in adjoining areas of the panel; and the form-holding features (21, 25) are provided at spaced apart intervals along at least one of the lines of curvature (100, 102) and extend transversely across the line of curvature (100, 102).
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Inventors:
SELLORS JOHN (GB)
Application Number:
PCT/GB2007/002453
Publication Date:
January 31, 2019
Filing Date:
June 29, 2007
Export Citation:
Assignee:
LOTUS CAR (GB)
SELLORS JOHN EDWARD (GB)
SELLORS JOHN EDWARD (GB)
International Classes:
B21D22/02; B62D27/02; B62D29/00
Foreign References:
| JPH02121727A | 1990-05-09 | |||
| US3158527A | 1964-11-24 | |||
| US3834962A | 1974-09-10 | |||
| US20030051527A1 | 2003-03-20 | |||
| US20040200256A1 | 2004-10-14 | |||
| DE102004044056A1 | 2006-03-16 | |||
| EP0811454A1 | 1997-12-10 |
Attorney, Agent or Firm:
PLUCKROSE, Anthony, William et al. (GB)
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