Control method for arc welding process and arc welding...

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B23K 9/095 (2006.01) B23K 9/073 (2006.01) B23K 9/12 (2006.01) B23K 9/127 (2006.01)

Patent

CA 2395912

A control method for arc welding wherein position control of an electrode or a torch is performed while adjusting welding conditions on the basis of optical information obtained from arc light generated during an arc welding process. Illuminance, which forms the optical information obtained from the arc light, has a certain mutual relationship with the arc length or the torch height, so that the weld control is accomplished based on the illuminance. The control method includes a step of comparing illuminance with reference information based on the mutual relationship, and a step of adjusting the welding conditions on the basis of a result of comparison.

L'invention concerne un procédé de commande de soudage à l'arc dans lequel une commande de mise en position d'une électrode ou d'un chalumeau est exécutée tout en régulant les conditions de soudage fondées sur des informations optiques obtenues à partir d'une lumière d'arc émise lors du soudage à l'arc. Les informations optiques obtenues à partir de la lumière d'arc, notamment l'éclairement, présentent une corrélation spécifique avec la longueur de l'arc ou la hauteur du chalumeau et la commande de soudage est exécutée en fonction de l'éclairement. Le procédé de commande comprend une étape destinée à comparer l'éclairement aux informations de référence fondées sur la corrélation et une étape destinée à réguler les conditions de soudage fondées sur les résultats de la comparaison.

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