Multiple component structural member

Details Multiple component structural member Multiple component structural member

B - Operations, Transporting

21

D

B21D 5/00 (2006.01) B21D 5/06 (2006.01) B21D 5/08 (2006.01) B21D 47/04 (2006.01) B23K 11/00 (2006.01) B23K 37/053 (2006.01) E04C 3/07 (2006.01) F16B 11/00 (2006.01) E04C 3/04 (2006.01)

Patent

CA 2092809

A novel method is provided for the continuous formation of a structural member having at least one web element and at least one hollow flange element extending longitudinally of an edge of the web element. The method includes the steps of cold roll forming a first continuous strip of metal to form the at least one hollow flange element, the free edges of the hollow flange element being spaced to form a continuous aperture therein. A second continuous strip of metal is then guided between the free edges and at least partially into the aperture. The free edges are then continuously fused to opposed faces of the web element by high frequency electrical induction welding, or by electrical resistance welding.

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