Welding assembly with nestable conductive ends

B - Operations – Transporting – 23 – K

Patent

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Details

B23K 11/30 (2006.01) B23K 11/00 (2006.01) B23K 11/093 (2006.01) B23K 11/11 (2006.01) B23K 11/14 (2006.01) B23K 11/34 (2006.01) B23K 35/02 (2006.01) B62D 23/00 (2006.01)

Patent

CA 2433052

A welding material in positioned in electrically conductive relation between exterior surface portions of first and second weldable members (18, 22), such as hydroformed tubes, at a location where the first and second weldable members are to be joined. A welding device comprises first and second electrodes or conductive ends (46, 48) that extend along substantially the entire extent of first sides of the first and second weldable members, respectively. The first and second conductive ends include first and second concave recesses (158), which nest with the first and second weldable members (18, 22), respectively. Axial pressure and electrical current are applied across the first and second weldable members by the nesting first and second conductive ends. The applied current melts the welding material and thereby welds the exterior surface portions to one another. The welding device can be mounted on a robotic mechanism, which can move the welding device between first and second welding positions.

Selon la présente invention, un matériau de soudage est disposé, en conduction électrique, entre des parties de surface extérieures d'un premier et d'un second élément soudable (18, 22), tels que des tubes hydroformés, à un endroit où le premier et le second élément soudable doivent être assemblés. Le dispositif de soudage comprend une première et une seconde électrode ou extrémité conductrice (46, 48) s'étendant sur la quasi-totalité de la longueur des premiers côtés du premier et du second élément soudable, respectivement. La première et la seconde extrémité conductrice comprennent une première et une seconde partie concave (158), qui sont emboîtées avec le premier et le second élément soudable (18, 22), respectivement. Une pression axiale et un courant électrique sont appliqués à travers le premier et le second élément soudable au moyen de l'emboîtage de la première et de la seconde extrémité conductrice. Le courant appliqué fait fondre le matériau de soudage et, de ce fait, soude les parties de surface extérieures les unes aux autres. Le dispositif de soudage peut être monté sur un mécanisme robotisé, qui peut déplacer le dispositif de soudage entre la première et la seconde position de soudage.

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