Metal deforming – By application of fluent medium – or energy field – With actuated tool engaging work
Reexamination Certificate
2005-03-15
2005-03-15
Jones, David (Department: 3725)
Metal deforming
By application of fluent medium, or energy field
With actuated tool engaging work
C072S465100, C072S466800
Reexamination Certificate
active
06865917
ABSTRACT:
A method and tool for forming a hem flange pre-hem and a final hem on a sheet metal panel wherein elastomeric tooling elements are used to apply radial compression during a forming operation. The elastomeric tooling elements are compressed and apply pressure to a side of the sheet metal panel, for example an aluminum panel, that is stretched during a forming process step. A foil layer may be placed between the sheet metal blank and the elastomeric tooling element to reduce friction and further improve forming performance.
REFERENCES:
patent: 3276239 (1966-10-01), Achler et al.
patent: 3353397 (1967-11-01), Hoffmann
patent: 3702558 (1972-11-01), Swenson et al.
patent: 3760622 (1973-09-01), Mansell
patent: 3978706 (1976-09-01), Nakagawa et al.
patent: 3986379 (1976-10-01), Mansell
patent: 4282735 (1981-08-01), Break
patent: 4446711 (1984-05-01), Valente
patent: 4494393 (1985-01-01), Bruce
patent: 4509358 (1985-04-01), Krowl
patent: 4643016 (1987-02-01), Barberine et al.
patent: 5205146 (1993-04-01), Wilkins et al.
patent: 5214951 (1993-06-01), Waddell
patent: 5454261 (1995-10-01), Campian
patent: 5490407 (1996-02-01), Doose
patent: 5603236 (1997-02-01), Hongo
patent: 5948185 (1999-09-01), Krajewski et al.
patent: 5953951 (1999-09-01), Fujimoto et al.
patent: 5970769 (1999-10-01), Lipari
patent: 6029334 (2000-02-01), Hartley
patent: 6029486 (2000-02-01), Haraga et al.
patent: 6052887 (2000-04-01), Dziadosz
David A. Smith, Die Design Handbook, Third Edition, pp. 14-1-14-22.
M. Yajima et al., The Effects of Hydrostatic Pressure on the Ductility of Metals and Alloys. Int. Journ. of Fracture Mech., 6 (1970) pp. 139-150.
P. W. Bridgman, Studies in Large Plastic Flow and Fracture, Harvard University Press, Cambridge, MA 1964, pp. 48-73.
Chappuis Laurent Bernard
Golovashchenko Sergey Fedorovich
Kolesov Sergey Sergeyevich
Vlassov Andrei Viktorovich
Coppiellie Raymond L.
Ford Motor Company
Jones David
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