Method and apparatus for forming a structural member

Details Method and apparatus for forming a structural member Method and apparatus for forming a structural member

B - Operations, Transporting

21

D

B21D 26/14 (2006.01) B21D 28/28 (2006.01) B23D 23/00 (2006.01) B23D 31/00 (2006.01) B23D 33/00 (2006.01) B26F 1/26 (2006.01) B21D 26/02 (2006.01)

Patent

CA 2491434

A method of forming a structural member includes hydroforming the blank (15) to form a hydroformed member (12) and finishing the hydroformed member by positioning the wall of the hydroformed member between a die surface (32) and an electromagnetic discharging element (16) having a non-circular cross- section, and actuating the electromagnetic discharging element so that the metallic wall of the hydroformed member presses against the die surface.

Procédé pour former un élément structural qui comporte les étapes consistant à hydroformer l'ébauche (15) pour former un élément hydroformé (12) ; à finir l'élément hydroformé en positionnant la paroi de l'élément hydroformé entre une surface de matrice (32) et un élément (16) produisant une décharge électromagnétique et qui présente une section transversale non circulaire ; et à actionner ledit élément afin que la paroi métallique de l'élément hydroformé appuie contre la surface de matrice.

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