Fig. 1. Schematics of welding sequence of thin-walled components with intensive welds. (a) Thin-walled flat plate;(b) cylindrical thin-walled structure

Fig. 2. Experimental setup of fiber laser welding of thin-walled structure with in-site peening

Fig. 3. Weld surface morphology and three-dimensional shape. (a)(d) No peening; (b)(e) peening after welding; (c)(f) in-site peening in welding

Fig. 4. Longitudinal residual stress of the weld center after welding

Fig. 5. Measurement of warpage deformation

Fig. 6. Warpage deformation and dimensional shrinkage of thin-walled flat plate in three states

Fig. 7. Dimensional shrinkage of cylindrical thin-walled structures in three states