| 摘要 |
<p>A method and apparatus for forming an exterior body panel for a motor vehicle. The method comprises mounting a sheet of metal material (16) in a die assembly, clamping first peripheral portion of the sheet of metal material between clamping surfaces of the die assembly (18), 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.</p> |
