The oscillation of stationary weld pool surface in the GTA welding

doi:10.1016/j.jmatprotec.2018.01.018

	The oscillation of stationary weld pool surface in the GTA welding
	Huang, J.K.1,2; Yang, M.H.1; Chen, J.S.2; Yang, F.Q.3; Zhang, Y.M.2; Fan, D.1
刊名	Journal of Materials Processing Technology
	2018-06-01
卷号	256 页码:57-68
关键词	Gas metal arc welding Numerical methods Welds Full penetration Oscillation frequency Partial penetration Pulsed GTA welding Pulsed GTAW Volume of fluid method Weld pool Weld pool surfaces
ISSN号	09240136
DOI	10.1016/j.jmatprotec.2018.01.018
英文摘要	A three-dimensional transient numerical model of a pulsed GTA welding is established based on the volume of fluid (VOF) method to study the oscillation of stationary weld pool surface. The detecting and sensing method based laser vision is used to measure the oscillation frequency in the weld pool. In conjunction with the theory, the oscillation frequency during welding process is analyzed. The free surface oscillation was investigated when the current changes from peak to base and when the weld pool was fully penetrated. Before full penetration, the weld pool oscillation frequency decreases as the welding time increases. The penetration depth increases with the welding time. When the molten pool reaches full penetration, the oscillation frequency stays the same. With the state of weld pool changes from partial penetration to full penetration, the oscillation frequency decreases rapidly. When the current changes from peak to base or from base to peak, the damping vibration takes place in a higher frequency. When the pool diameter is greater than 8.4 mm, the base metal fully penetrated. © 2018 Elsevier B.V.
WOS研究方向	Engineering ; Materials Science
语种	英语
出版者	Elsevier Ltd
WOS记录号	WOS:000431156800006
内容类型	期刊论文
源URL	[http://ir.lut.edu.cn/handle/2XXMBERH/114439]
专题	材料科学与工程学院
作者单位	1.State Key Laboratory of Advanced Processing and Recycling of Non-ferrous Metals, Lanzhou University of Technology, Lanzhou; 730050, China; 2.Department of Electrical and Computer Engineering and Institute of Sustainable Manufacturing, University of Kentucky, Lexington; KY; 40506, United States; 3.Department of Materials and Chemical Engineering, University of Kentucky, Lexington; KY; 40506, United States
推荐引用方式 GB/T 7714	Huang, J.K.,Yang, M.H.,Chen, J.S.,et al. The oscillation of stationary weld pool surface in the GTA welding[J]. Journal of Materials Processing Technology,2018,256:57-68.
APA	Huang, J.K.,Yang, M.H.,Chen, J.S.,Yang, F.Q.,Zhang, Y.M.,&Fan, D..(2018).The oscillation of stationary weld pool surface in the GTA welding.Journal of Materials Processing Technology,256,57-68.
MLA	Huang, J.K.,et al."The oscillation of stationary weld pool surface in the GTA welding".Journal of Materials Processing Technology 256(2018):57-68.