Modeling of the Weld Shape Development During the Autogenous Welding Process by Coupling Welding Arc with Weld Pool
文献类型：期刊论文
| 作者 | W. C. Dong ; S. P. Lu ; D. Z. Li ; Y. Y. Li |
| 刊名 | Journal of Materials Engineering and Performance
 |
| 出版日期 | 2010 |
| 卷号 | 19期号:7页码:942-950 |
| 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 |
| ISSN号 | 1059-9495 |
| 中文摘要 | 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. |
| 原文出处 | |
| 公开日期 | 2012-04-13 |
| 源URL | [http://210.72.142.130/handle/321006/31077]  |
| 专题 | 金属研究所_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. |
入库方式： OAI收割
来源：金属研究所
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