Method and device for laser welding metal sheets

Details Method and device for laser welding metal sheets Method and device for laser welding metal sheets

B - Operations, Transporting

23

K

B23K 26/00 (2006.01) B23K 26/24 (2006.01) B23K 33/00 (2006.01)

Patent

CA 2347427

The invention relates to a method for laser welding metal sheets (1, 2) with a butt joint. The inventive method is characterized in that before or in the welding area at least one of the sheets (1, 2) is plastically deformed by means of a squeezer (6) in order to reduce the width of a gap that may exist between the sheets (1, 2). According to the invention, the profile produced by the squeezer (6) in the sheets (1, 2) is independent of the junction area (5) of the sheets (1, 2). The invention also relates to a device for carrying out the inventive method.

L'invention concerne un procédé de soudage de tôles (1, 2) bout-à-bout au moyen d'un laser, selon lequel, avant la zone de soudage et dans celle-ci, au moins une des tôles (1, 2) est plastiquement déformée à l'aide d'un corps d'écrasement (6) de façon que la largeur d'un espace existant éventuellement entre les tôles (1, 2) soit réduit. Un profil produit par le corps d'écrasement (6) dans la tôle (1, 2) est, selon l'invention, indépendant de la forme de la zone de jonction (5) des tôles (1, 2). L'invention concerne en outre un dispositif permettant la mise en oeuvre de ce procédé.

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