The Change of Residual Stress with Two-wire Spacing of Twin-wire Submerged Arc Welding
Finite element software MSC.MARC was used to analyze the residual stress of high-strength low-alloy steel suffered twin-wire SAW.The numerical simulation of the residual stress field with different twin-wire spacing was conducted.The residual stress test results under twin-wire SAW at twin-wire of 50 mm welding were compared to the simulation results,which verified the numerical simulation.The results showed that in the single-channel and twin-wire welding,the largest welding residual stress of the joints is located near the weld toe.At certain wire distances (20-100 mm) in the twin-wire welding process,increasing distance only minimally reduces welding residual stress.Thus,the effects of residual stress on two-wire spacing have been neglected in studies on the twin-wire welding process,More studies should focus on the impact of the performance and forming of the weld joint.
SAW Two-Kire spacing Residual stress Numerical simulation
Yang Xiuzhi Ding Wanjing Jiang Jinyu Xiao Xinhua
School of Mechanical and electronic of Huangshi Institute of technology Huangshi,China
国际会议
太原
英文
92-96
2011-02-26（万方平台首次上网日期，不代表论文的发表时间）