METHOD OF ARC WELDING OF THICK-SHEET MATERIAL IN "TRANSVERSE HILL" WELDING, WELDING APPARATUS AND VIDEO SENSOR UNIT TO EMBODY PROPOSED METHOD Russian patent published in 2009 - IPC B23K9/16 B23K33/00 B23K37/02 B25J19/04 B25J13/08 

FIELD: process engineering.

SUBSTANCE: invention relates to ar welding and can be used in various industrial branches for welding butt joints of thick metal sheets by melting electrode in atmosphere of protective gases in vertical and horizontal positions. Welding is performed by "transverse hill" method in atmosphere of protective gas and with layer-by-layer filling of cutting along base plane located at 45° to welded seam formation direction. Note that electrode pendulum crosswise oscillations are made in between cutting walls along arc-like trajectory with discrete decrease in its radius after each oscillation. Each layer completed, electrode returns to cutting edge and, simultaneously travels in steps along seam for preset value. Welding apparatus incorporates control system with controller to control power source, computer with appropriate software and video sensor unit (VSU) to gather and process data on actual position and geometry of welded seam and to generate control signals.

EFFECT: higher quality of welded joints.

5 cl, 3 dwg