| 摘要 |
PURPOSE:To make a titled welding method very advantageous in respect of man- hour, by positioning a web plate and a flange plate in the beginning, and continuously executing the continuous welding in the lengthwise direction through roll-molding of a bead part. CONSTITUTION:One web plate W and two flange plates F1, F2 being each independent member to be welded are collected on a roll jig 10, and they are constituted so as to obtain, for instance, an I-shaped section by roll group, by giving constant feed to the web plate W and the flange plates F1, F2 by a driving means. Subsequently, to said each combined corner part R guided by roll groups 11, 12 and 13, padding welding is performed by plural welding torches 14. On the front stage of the welding torch 14, a rolling roll 15 corresponding to each corner part R is provided, a bead part E immediately after welding is rolled and molded, also foams and fine holes are removed, and the whole bead part E is equalized. |
