RIBBED PANELS LASER WELDING METHOD Russian patent published in 2016 - IPC B23K31/02 B23K26/26 B23K101/18 F28F3/02 

FIELD: technological processes.

SUBSTANCE: invention relates to tee and angular joints laser welding and can be used for ribbed integrated structures production from aluminium alloys. Performing prepared panel web installation and securing on support surface, stringer arrangement on it and fixation using retainer. Using retainer, made in form of rigid massive longitudinal beam with lower surface, repeating inner skin contour, with side surface for contact with stringer surface and set of cramps. Performing stringer rib tack weld attached by retainer. Then welding stringer rib to skin on same side. With removed retainer performing welding on rib other side. Welding is performed by welding head with shielding gas supply tubular nozzle arranged at angle to welding beam, made covering welding zone along length, with slices at end enabling abutment to joint angular structure, and equipped with hole for filler wire and focused laser beam supply into welding zone.

EFFECT: laser welding with filler wire result is production of thin-walled ribbed panels from aluminium alloys without buckling, thus excluding rib straightening operation relative to panel.

1 cl, 5 dwg, 1 ex