The Change of Residual Stress with Two-Wire Spacing of Twin-Wire Submerged Arc Welding

Abstract:

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.

• Periodical: Advanced Materials Research (Volume 462)
• Pages: 154-159
• DOI: https://doi.org/10.4028/www.scientific.net/AMR.462.154
• Online since: February 2012
• Authors: Xiu Zhi Yang, Wan Jing Ding, Jin Yu Jiang, Xin Hua Xiao
• Keywords: Numerical Simulation, Residual Stress, SAW, Two-Wire Spacing

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