Analysis of metal transfer and correlated influences in dual-bypass GMAW of aluminum

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	Analysis of metal transfer and correlated influences in dual-bypass GMAW of aluminum
	Shi, Y.3; Liu, X.2; Zhang, Y.2; Johnson, M.1
刊名	Welding Journal (Miami, Fla)
	2008-09-01
卷号	87 期号:9 页码:229s-236s
关键词	Aluminum Drops Electric currents Electrodes Gas welding High speed cameras Metal analysis Base metal heat input Bypass arcs Dual-bypass gas metal arc , welding Gmaw process Melting current Metal transfers Spray transfer Tungsten electrodes
ISSN号	00432296
英文摘要	Dual-bypass gas metal arc welding (DB-GMAW) is a modified GMAW process. In this novel process, the base metal current is decreased from the melting current by adding two tungsten electrodes to a conventional GMAW system. The resultant bypass arcs change the forces affecting on the droplet, and the resultant metal transfer becomes more desirable. To understand the desirable changes in the metal transfer, this paper applies established theories to analyze the changes in the forces acting on the droplet and the effects of these changes on the metal transfer behaviors. Analysis shows that the bypass arcs and currents lower the critical current needed to achieve the desired spray transfer. Experimental results obtained by a high-speed camera show that the analysis agrees with experimental data.
WOS研究方向	Metallurgy & Metallurgical Engineering
语种	英语
出版者	American Welding Society
WOS记录号	WOS:000269803400010
内容类型	期刊论文
源URL	[http://ir.lut.edu.cn/handle/2XXMBERH/112206]
专题	兰州理工大学省部共建有色金属先进加工与再利用国家重点实验室
作者单位	1.Los Alamos National Lab., Los Alamos, NM, United States 2.Center for Manufacturing, University of Kentucky, Lexington, KY, United States; 3.State Key Laboratory of Gansu Advanced Nonferrous Metal Materials, Lanzhou University of Technology, Lanzhou, China;
推荐引用方式 GB/T 7714	Shi, Y.,Liu, X.,Zhang, Y.,et al. Analysis of metal transfer and correlated influences in dual-bypass GMAW of aluminum[J]. Welding Journal (Miami, Fla),2008,87(9):229s-236s.
APA	Shi, Y.,Liu, X.,Zhang, Y.,&Johnson, M..(2008).Analysis of metal transfer and correlated influences in dual-bypass GMAW of aluminum.Welding Journal (Miami, Fla),87(9),229s-236s.
MLA	Shi, Y.,et al."Analysis of metal transfer and correlated influences in dual-bypass GMAW of aluminum".Welding Journal (Miami, Fla) 87.9(2008):229s-236s.