Draw stamping die for stamping body panels for motor vehicles

Details Draw stamping die for stamping body panels for motor vehicles Draw stamping die for stamping body panels for motor vehicles

1998-10-15

2000-03-07

Crane, Daniel C.

Metal deforming

By use of non-deforming work-gripping clamp and relatively...

By individually non-deforming clamps

72309, 72350, B21D 1102, B21D 2222

Patent

active

060325046

ABSTRACT:
A method and apparatus for forming an exterior body panel for a motor vehicle. The method comprises mounting a sheet of metal material in a die assembly, clamping first peripheral portion of the sheet of metal material between clamping surfaces of the die assembly, moving the clamping surfaces relative to a central die structure so as to deform the sheet metal over the central die structure, clamping second peripheral portion of the sheet of metal material between a die pad of the die assembly and the central die structure after the sheet metal is deformed over the central die structure, moving the clamping surfaces relative to the central die structure to stretch the sheet metal over the central die structure after the second peripheral portion of the sheet of metal material are clamped, and stamping the sheet of metal material between the central structure and an opposing die surface after the sheet metal has been stretched over the die structure so as to provide the sheet metal with a desired configuration.

REFERENCES:
patent: 2002097 (1935-05-01), Peterson
patent: 2064160 (1936-12-01), Hochreiter
patent: 2294451 (1942-09-01), Ernst
patent: 3124340 (1964-03-01), Williamson
patent: 3147722 (1964-09-01), Williamson
patent: 3202411 (1965-08-01), Heiser
patent: 3279780 (1966-10-01), Williamson
patent: 3425257 (1969-02-01), Heiser
patent: 4358263 (1982-11-01), Shiraishi et al.
patent: 4977774 (1990-12-01), Asari et al.
patent: 5600991 (1997-02-01), Munzen

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