文章基本信息

标题：Influence of AA-GTA Welding on the Weld Metal Penetration
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作者：Mohd Majid ; Abhishek Shrivastava
期刊名称：Lecture Notes in Engineering and Computer Science
印刷版ISSN：2078-0958
电子版ISSN：2078-0966
出版年度：2019
卷号：2240
页码：422-425
出版社：Newswood and International Association of Engineers
摘要：Gas tungsten arc welding (GTAW) is suitable for welding up to 6 mm thick materials. Thus, with a view to enhance the process capabilities of GTAW process advance activated gas tungsten arc welding (AAGTAW) was used to fabricate V-groove joints on 10 mm thick plate of 304L stainless steel. Joint was fabricated using AA-GTAW process in which a mixture of 4% oxygen and 96% pure argon was used as shielding gas. It was observed that, addition of oxygen to the molten pool control the Marangoni convection from the outward to inward direction due to which depth to width ratio (d/w) of the weld significantly increases.
关键词：AA-GTAW; d/w ratio; GTAW; Marangoni; convection