公开(公告)号：US20210316385A1

公开(公告)日：2021-10-14

申请号：US17272927

申请日：2018-11-13

Applicant: DALIAN UNIVERSITY OF TECHNOLOGY

Inventor： Liming LIU ,  Gang SONG ,  Zhaodong ZHANG ,  Chenghui HU

IPC: B23K9/16 ,  B23K9/04

Abstract: A gas shielded triple-wire indirect arc welding device has three welding wires and the two arc power supplies. In a gas shielded triple-wire indirect arc welding method, before welding, one of three welding wires is first connected to positive electrodes of a first arc power supply and a second arc power supply, the other two welding wires are respectively connected to negative electrodes of the first arc power supply and the second arc power supply, and a welding workpiece is not connected to the arc power supplies. The welding wire connected to the positive electrodes of the two arc power supplies are arranged in the middle, and the other two welding wires are respectively arranged on both sides. The welding method is used for implementing build-up welding.

公开(公告)号：US20220212280A1

公开(公告)日：2022-07-07

申请号：US17594743

申请日：2020-03-10

Applicant: DALIAN UNIVERSITY OF TECHNOLOGY

Inventor： Gang SONG ,  Liming LIU ,  Zhaodong ZHANG ,  Hongyang WANG ,  Daxin REN

IPC: B23K11/06

Abstract: A welding-rolling integrated composite forming method uses the low heat input wire filling welding method to cooperate with the optimization of the welding process, and at the same time the rolling device is used to roll the weld reinforcement area of the welded joint, realizing the precise control of the structure and properties of each area of the welded joint by using the plastic flow and deformation strengthening effect of the weld reinforcement of the welded joint during rolling process. The integrated composite forming device adjusts the distances between the welding mechanism, the rolling mechanism and the metal sheet to-be-welded and rolled by the coordination of each mechanism, and carries out synchronous rolling on the weld reinforcement of the welded joint.