FIELD: process engineering.
SUBSTANCE: invention relates to laser welding head for welding metal parts with at least one laser beam path of welding beam and appliances for optical registration of welding seam position on the first measurement position. Said welded seam optical registration means allows the position of the first measurement position with advance in direction of welding and at least depending on lateral deviation of welding seam from preset position laser welding beam position correction signal is generated. Invention relates also to laser welding procedure. Welding seam position is determined in using optical means of registration on the first measurement position along with advanced laser beam welding position. Depending upon welded seam position deviation from preset position, correction signal is generated. Distance of the first measurement position 9, given the advanced welding position 8 of welding beam 2, is selected so that correction signal can be used without advance calculation to control aforesaid correction means 7.
EFFECT: higher accuracy and efficiency.
20 cl, 2 dwg
