Modeling of the Weld Shape Development During the Autogenous Welding Process by Coupling Welding Arc with Weld Pool

IMR OpenIR

	Modeling of the Weld Shape Development During the Autogenous Welding Process by Coupling Welding Arc with Weld Pool
	W. C. Dong; S. P. Lu; D. Z. Li; Y. Y. Li
	2010
发表期刊	Journal of Materials Engineering and Performance
ISSN	1059-9495
卷号	19 期号:7 页码:942-950
摘要	A numerical model of the welding arc is coupled to a model for the heat transfer and fluid flow in the weld pool of a SUS304 stainless steel during a moving GTA welding process. The described model avoids the use of the assumption of the empirical Gaussian boundary conditions, and at the same time, provides reliable boundary conditions to analyze the weld pool. Based on the two-dimensional axisymmetric numerical modeling of the argon arc, the heat flux to workpiece, the input current density, and the plasma drag stress are obtained. The arc temperature contours, the distributions of heat flux, and current density at the anode are in fair agreement with the reported experimental results. Numerical simulation and experimental studies to the weld pool development are carried out for a moving GTA welding on SUS304 stainless steel with different oxygen content from 30 to 220 ppm. The calculated result show that the oxygen can change the Marangoni convection from outward to inward direction on the liquid pool surface and make the wide shallow weld shape become narrow deep one. The calculated result for the weld shape and weld D/W ratio agrees well with the experimental one.
部门归属	[dong, wenchao; lu, shanping; li, dianzhong; li, yiyi] chinese acad sci, inst met res, shenyang natl lab mat sci, shenyang 110016, peoples r china.;dong, wc (reprint author), chinese acad sci, inst met res, shenyang natl lab mat sci, 72 wenhua rd, shenyang 110016, peoples r china;wcdong@imr.ac.cn shplu@imr.ac.cn
关键词	Marangoni Convection Numerical Simulation Weld Shape Welding Arc And Weld Pool Type-304 Stainless-steel Numerical-simulation Marangoni Convection Flow Patterns Heat-transfer Electric-arc Fluid-flow Argon Arc Gas Gta
URL	查看原文
WOS记录号	WOS:000282504600004
引用统计	被引频次：15[WOS] [WOS记录] [WOS相关记录]
文献类型	期刊论文
条目标识符	http://ir.imr.ac.cn/handle/321006/31077
专题	中国科学院金属研究所
推荐引用方式 GB/T 7714	W. C. Dong,S. P. Lu,D. Z. Li,et al. Modeling of the Weld Shape Development During the Autogenous Welding Process by Coupling Welding Arc with Weld Pool[J]. Journal of Materials Engineering and Performance,2010,19(7):942-950.
APA	W. C. Dong,S. P. Lu,D. Z. Li,&Y. Y. Li.(2010).Modeling of the Weld Shape Development During the Autogenous Welding Process by Coupling Welding Arc with Weld Pool.Journal of Materials Engineering and Performance,19(7),942-950.
MLA	W. C. Dong,et al."Modeling of the Weld Shape Development During the Autogenous Welding Process by Coupling Welding Arc with Weld Pool".Journal of Materials Engineering and Performance 19.7(2010):942-950.