Weld joint shaping and modifying method through friction rolling along with welding

• Main Authors: HE WENXIONG, ZHOU LI, HE ZHAOQING, SUN SHULEI, YANG ZHAOXU, LI YU, ZHAO HONGYUN, ZHANG HAOYU, LIANG TAO, YANG HAIFENG, YU JINGPO
• Format: Patent
• Language: Chinese; English
• Published: 12.04.2024
• Subjects: CLADDING OR PLATING BY SOLDERING OR WELDING; CUTTING BY APPLYING HEAT LOCALLY, e.g. FLAME CUTTING; MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR; PERFORMING OPERATIONS; SOLDERING OR UNSOLDERING; TRANSPORTING; WELDING; WORKING BY LASER BEAM

The invention discloses a weld joint shaping and modifying method through friction rolling along with welding, and belongs to the field of metal welding and additive manufacturing. When the welding gun performs welding in the front, a friction rod is arranged behind the welding gun, the lower end face of the friction rod makes contact with and compresses the surface of the weld joint, and the upper end of the friction rod is driven by a motor to rotate, so that friction force is generated between the lower end face of the friction rod and the surface of the weld joint to conduct friction rolling on the weld joint which is just solidified and still in a high-temperature plastic state behind a welding pool. Deformation flow is generated on the surface layer of the welding seam, so that the welding seam is shaped and modified; and the friction rod and the welding gun move synchronously so as to perform friction rolling on the whole welding seam. Plastic deformation generated by friction rolling not only can flat