Stirring effect of the rotating arc on the molten pool during non- axisymmetric tungsten NG-GTAW

doi:10.1016/j.jmatprotec.2020.116769

	Stirring effect of the rotating arc on the molten pool during non- axisymmetric tungsten NG-GTAW
	Wei, Bin 2; Jia, Chuanbao 2; Wu, Wei 2; Fang, Chao 1; Wu, Chuansong 2
刊名	JOURNAL OF MATERIALS PROCESSING TECHNOLOGY
	2020-11-01
卷号	285
关键词	Non-axisymmetric rotating tungsten Narrow-gap GTAW Tracer particle Molten pool Liquid flow
ISSN号	0924-0136
DOI	10.1016/j.jmatprotec.2020.116769
通讯作者	Jia, Chuanbao(jiachuanbao@sdu.edu.cn)
英文摘要	The stirring effect of the rotating arc during non-axisymmetric tungsten narrow-gap GTAW (NT-NG-GTAW) on the molten pool is investigated. Tracer particles are embedded in the groove and plate metal surface, respectively. During welding, the floating tracer particles are captured with a high-speed camera to reflect the flow characteristics of the liquid metal. Compared with conventional GTAW processes, mechanical force (Fc) and inertial centrifugal force (Fl) in NT-NG-GTAW have more significant effect on the molten pool. They are the main driving forces to change the flow pattern of the molten pool under the rotating arc. As the arc rotate to the boundary of the molten pool, liquid metal layer on molten pool surface forms a vortex at the other edge to impact on the sidewall. When the arc rotates clockwise, the molten pool in bead-on-plate rotates counter-clockwise, whereas the molten pool in the narrow gap rotates clockwise with the same rotation frequency as the arc.
资助项目	Key Technologies R&D Program of Shandong Province[2017GGX30130] ; Aeronautical Science Foundation of China[201742Q3001] ; Major Scientific and Technological Innovation Project of Shandong Province[2019JZZY010358] ; open project of Beijing Engineering Researching Center of Laser Technology[BG0046-2018-12]
WOS关键词	WELD POOL ; METAL ; BEHAVIOR ; GEOMETRY ; BEAD
WOS研究方向	Engineering ; Materials Science
语种	英语
出版者	ELSEVIER SCIENCE SA
WOS记录号	WOS:000546624100003
资助机构	Key Technologies R&D Program of Shandong Province ; Aeronautical Science Foundation of China ; Major Scientific and Technological Innovation Project of Shandong Province ; open project of Beijing Engineering Researching Center of Laser Technology
内容类型	期刊论文
源URL	[http://ir.hfcas.ac.cn:8080/handle/334002/71022]
专题	中国科学院合肥物质科学研究院
通讯作者	Jia, Chuanbao
作者单位	1.Chinese Acad Sci ASIPP, Inst Plasma Phys, Hefei 230031, Peoples R China 2.Shandong Univ, Inst Mat Joining, MOE Key Lab Liquid Solid Struct Evolut & Mat Proc, Jinan 250061, Peoples R China
推荐引用方式 GB/T 7714	Wei, Bin,Jia, Chuanbao,Wu, Wei,et al. Stirring effect of the rotating arc on the molten pool during non- axisymmetric tungsten NG-GTAW[J]. JOURNAL OF MATERIALS PROCESSING TECHNOLOGY,2020,285.
APA	Wei, Bin,Jia, Chuanbao,Wu, Wei,Fang, Chao,&Wu, Chuansong.(2020).Stirring effect of the rotating arc on the molten pool during non- axisymmetric tungsten NG-GTAW.JOURNAL OF MATERIALS PROCESSING TECHNOLOGY,285.
MLA	Wei, Bin,et al."Stirring effect of the rotating arc on the molten pool during non- axisymmetric tungsten NG-GTAW".JOURNAL OF MATERIALS PROCESSING TECHNOLOGY 285(2020).