Laser welding method, laser-welded joint, outside sheathing...

Details Laser welding method, laser-welded joint, outside sheathing... Laser welding method, laser-welded joint, outside sheathing...

B - Operations, Transporting

23

K

B23K 26/20 (2006.01) B61D 17/04 (2006.01)

Patent

CA 2563618

A side construction has an outside sheathing and outside sheathing reinforcement members joined to the outside sheathing interiorly of the outside sheathing. The reinforcement member is shaped like a hat in section. The reinforcement members provided in the vicinity of a window opening portion have a laser welding spacing of 80 mm and each have a hat width of 50 mm, while the reinforcement members provided on other part have a laser welding spacing of 100 mm and each have a hat width of 70 mm. The reinforcement members each have a height of 25 mm.

Il est prévu un procédé de soudage au laser, un joint soudé au laser, un panneau externe et une structure pour produit de laminage. Dans le procédé de soudage au laser, une pluralité d'éléments en forme de plaques (1) et (2) se chevauchent et l'on irradie en continu un faisceau laser sur ceux-ci depuis la direction externe superficielle des éléments tout en déplaçant le faisceau laser. On applique un traitement de polissage à la surface externe de l'élément en forme de plaque (2) sur le côté opposé (1) de la surface externe sur laquelle le faisceau laser est irradié dans une direction à peu près parallèle à la direction de lignes de soudure par le faisceau laser au préalable de sorte que les traces de soudure sont visuellement indécelables.

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