B - Operations – Transporting – 23 – K
Patent
B - Operations, Transporting
23
K
B23K 26/14 (2006.01) B23K 9/028 (2006.01) B23K 26/04 (2006.01) B23K 26/28 (2006.01)
Patent
CA 2610486
The invention concerns a welding device and a welding method, in particular of tubular parts (c1, c2) such as abutting metal conduits to form pipeline metal pipes, which consists in effecting the penetrating pass from outside. The invention is characterized in that it consists in creating a single liquid weld metal under the simultaneous action of at least one laser beam (1) transmitted by optical fiber and at least one electric arc protected by gas generated from a consumable electrode (2a) constituting the filler material. The invention is mainly applicable to the construction of pipelines.
L'invention concerne un dispositif de soudage et un procédé de soudage, en particulier de pièces tubulaires (c1, c2) telles que des conduits métalliques mis bout à bout pour former des canalisations métalliques du type pipeline, dans lequel on réalise la passe de pénétration par l'extérieur. L'invention consiste en ce qu'on crée un bain de fusion unique sous l'action simultanée d'au moins un faisceau laser (1) transmis par fibre optique et d'au moins un arc électrique sous protection gazeuse généré à partir d'une électrode fusible (2a) constituant le matériau d'apport. L'application principale concerne 1a fabrication de pipelines.
Chehaibou Abdelkrim
Richard Gilles
Goudreau Gage Dubuc
Institut de Soudure
Serimax
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