Mechanisms increasing welding efficiency during new development of double shielded TIG process
文献类型：期刊论文
| 作者 | D. J. Li ; S. P. Lu ; D. Z. Li ; Y. Y. Li |
| 刊名 | Science and Technology of Welding and Joining
 |
| 出版日期 | 2010 |
| 卷号 | 15期号:6页码:528-533 |
| 关键词 | Double shielded Marangoni convection Welding parameters Oxygen content marangoni convection numerical-simulation deep penetration shape variations activating flux oxide fluxes gas gta oxygen geometry |
| ISSN号 | 1362-1718 |
| 中文摘要 | A new welding method has been developed for the tungsten inert gas process which can both improve the weld depth/width (D/W) ratio and protect the electrode from oxidation during the welding process. The effects of the welding parameters and the Marangoni convection patterns on the weld pool shapes are discussed. Results showed that the change of welding parameters directly change the temperature distribution on the pool surface and the concentration addition of the surface active element, hence, eventually affect the pattern and strength of the Marangoni convection. For the liquid pool on stainless steel, the weld shapes depends to a large extent on the pattern and strength of the Marangoni convection. It is possible to generate a heavy oxide layer on pool surface under a relatively high oxygen content to affect the surface tension stress. The heavy oxide layer may inhibit the heat flow on the weld pool surface, and reduce the D/W ratio. |
| 原文出处 | |
| 公开日期 | 2012-04-13 |
| 源URL | [http://210.72.142.130/handle/321006/31206]  |
| 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 | D. J. Li,S. P. Lu,D. Z. Li,et al. Mechanisms increasing welding efficiency during new development of double shielded TIG process[J]. Science and Technology of Welding and Joining,2010,15(6):528-533. |
| APA | D. J. Li,S. P. Lu,D. Z. Li,&Y. Y. Li.(2010).Mechanisms increasing welding efficiency during new development of double shielded TIG process.Science and Technology of Welding and Joining,15(6),528-533. |
| MLA | D. J. Li,et al."Mechanisms increasing welding efficiency during new development of double shielded TIG process".Science and Technology of Welding and Joining 15.6(2010):528-533. |
入库方式： OAI收割
来源：金属研究所
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