标题：Influence of arc interactions on heat and mass transfer during a two-arc hybrid welding
作者：Chen, Ji; Han, Zhikun; Wang, Lin; Wu, Chuansong
作者机构：[Chen, Ji; Han, Zhikun; Wang, Lin; Wu, Chuansong] Shandong Univ, Inst Mat Joining, MOE Key Lab Liquid Solid Struct Evolut & Proc Mat, Minist Educ, 179 更多
通讯作者：Chen, Ji;Chen, J
通讯作者地址：[Chen, J]Shandong Univ, Inst Mat Joining, MOE Key Lab Liquid Solid Struct Evolut & Proc Mat, Minist Educ, 17923 Jingshi Rd, Jinan 250061, Peoples R Ch 更多
来源：INTERNATIONAL JOURNAL OF HEAT AND MASS TRANSFER
关键词：Hybrid heat model; Arc interactions; Heat transfer; Fluid flow; Weld; pool behavior
摘要：The quantitative analysis of the heat and mass transfer in weld pool is of great significance for the optimization of welding parameters in manufacturing process with a high-quality weld bead. In this study, the arc deflections caused by the electromagnetic force of two-arc hybrid welding was calculated. The heat source and arc force models of the hybrid welding were proposed considering the influence of the arc deflection and surface deformation of weld pool. Compared with single heat welding, the distributions of the arc heat energy, arc pressure, and arc shear stress in two-arc hybrid welding were studied based on three-dimensional transient computational models. The temperature field and the fluid flow on the upper surface and the longitudinal and cross -sections of the weld pool were analyzed to reveal the heat and mass transfer in workpiece. Experiments were carried out and the results showed that the simulated cross-section weld bead, thermal cycle, temperature field, and flow field agreed well with the experimental values. (C) 2019 Elsevier Ltd. All rights reserved.