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.