Numerical simulation for welding pool and welding arc with variable active element and welding parameters
文献类型：期刊论文
| 作者 | S. P. Lu ; W. C. Dong ; D. Z. Li ; Y. Y. Li |
| 刊名 | Science and Technology of Welding and Joining
 |
| 出版日期 | 2009 |
| 卷号 | 14期号:6页码:509-516 |
| 关键词 | Numerical simulation Oxygen Welding parameter Marangoni convection Weld shape type-304 stainless-steel marangoni convection activating flux flow patterns oxide fluxes gta penetration metal shape oxygen |
| ISSN号 | 1362-1718 |
| 中文摘要 | A numerical modelling of the welding arc and weld pool is established for moving argon shielded gas tungsten arc welding to systematically investigate the effect of the active element oxygen and the welding parameters on the Marangoni convection and the weld shape using FLUENT software. The different welding parameters will change the temperature distribution and gradient on the pool surface, and affect the strength of Marangoni convection and the weld shape. Under high oxygen content, the weld depth/width (D/W) ratio substantially depends on the welding parameters. A high welding speed or large electrode gap (arc length) will make the weld D/W ratio decrease. The weld D/W ratio initially increases and then remains constant around 0.5 with the increasing welding current. When the oxygen content is lower, the weld D/W ratio decreases with the increasing welding current. However, the weld D/W ratio is not sensitive to the welding speed or electrode gap. The predicted weld D/W ratio agrees well with the experimental results. |
| 原文出处 | |
| 公开日期 | 2012-04-13 |
| 源URL | [http://210.72.142.130/handle/321006/32157]  |
| 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 | S. P. Lu,W. C. Dong,D. Z. Li,et al. Numerical simulation for welding pool and welding arc with variable active element and welding parameters[J]. Science and Technology of Welding and Joining,2009,14(6):509-516. |
| APA | S. P. Lu,W. C. Dong,D. Z. Li,&Y. Y. Li.(2009).Numerical simulation for welding pool and welding arc with variable active element and welding parameters.Science and Technology of Welding and Joining,14(6),509-516. |
| MLA | S. P. Lu,et al."Numerical simulation for welding pool and welding arc with variable active element and welding parameters".Science and Technology of Welding and Joining 14.6(2009):509-516. |
入库方式： OAI收割
来源：金属研究所
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