Method and apparatus for fabricating a hollow body

Details Method and apparatus for fabricating a hollow body Method and apparatus for fabricating a hollow body

B - Operations, Transporting

21

D

B21D 51/00 (2006.01) B21D 53/00 (2006.01) B21D 53/88 (2006.01) B21D 26/02 (2006.01)

Patent

CA 2237350

In a method and apparatus for fabricating a hollow body, preferably of sheet metal, such as for example automobile hoods and doors, at least two blanks are held sealingly together and the hollow body is then shaped by internal hydroforming.

Cette invention concerne une méthode de fabrication de corps creux, de préférence en tôle métallique, destinés par exemple à des capots et portières d'automobile, selon laquelle au moins deux ébauches sont maintenues l'une contre l'autre de façon à former une enceinte étanche dont le façonnage en corps creux est fait par hydroformage intérieur. L'invention concerne également la machine utilisée pour réaliser le procédé.

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