Method of manufacturing structural components from tube...

Details Method of manufacturing structural components from tube... Method of manufacturing structural components from tube...

B - Operations, Transporting

21

D

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

Patent

CA 2442430

A method for forming a tubular structural member includes the steps of cold forming a tube blank (10) to have a longitudinally variable but circumferentially constant wall thickness (t1, t2, t3) and forming the blank into the desired structural member (90). Preferably, the forming step involves hydroforming.

L'invention porte sur un procédé de fabrication d'un élément structural tubulaire consistant à façonner une ébauche de tube (10) afin d'obtenir une épaisseur (t1, t2, t3) de paroi constante sur le pourtour mais variable sur la longueur et à former l'ébauche (10) afin d'obtenir l'élément structural souhaité (90). L'opération de formage fait intervenir de préférence l'hydroformage.

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