Gas transfer flux activating TIG welding process for aluminum alloy

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	Gas transfer flux activating TIG welding process for aluminum alloy
	Huang, Yong 1,2; Li, Tao 1; Wang, Yanlei 1
刊名	Hanjie Xuebao/Transactions of the China Welding Institution
	2014
卷号	35 期号:1 页码:101-104
关键词	Aluminum alloys Aluminum compounds Chemical activation Chlorine compounds Defects Flow patterns Gas welding Inert gas welding Laser beam welding Manganese compounds Shielding Tellurium Tensile strength Vanadium pentoxide Welds Activating flux Activating TIG welding Active elements Powder feeder Single components TIG-welding Welding process X-ray detections
ISSN号	0253360X
英文摘要	A new activating TIG welding process, gas transfer flux activating TIG (GTFA-TIG) welding, is proposed for welding aluminum alloy by changing the introduction method of active elements. In this process, a flux is transferred to shielding gas through an automatic powder feeder, and the shielding gas carries the active elements into the welding arc and weld pool. In this way, the welding arc is contracted, and the flow pattern in the weld pool is changed, finally, the weld depth increases. Without coating the flux, the automation of welding process is realized. Compared to the conventional AC TIG welding, the effects of fluxes on the weld shape, tensile property and defects of GTFA-TIG welding with eight kinds of single-component fluxes were investigated. It proves that most of halide and oxide fluxes can improve the weld depth up to 2.5-3.0 times of that of traditional TIG welding, while the effect of Te flux is less effective. The tensile strength of the joint with V2O5 flux is close to that of base metal, but it is lower than that of base metal when using MnCl2 and AlF3 fluxes. The X-ray detection of defects shows that the welds with V2O5, MnCl2 and AlF3 fluxes are assessed as grade I, while that with Te flux is grade III.
语种	中文
出版者	Harbin Research Institute of Welding
内容类型	期刊论文
源URL	[http://ir.lut.edu.cn/handle/2XXMBERH/112683]
专题	省部共建有色金属先进加工与再利用国家重点实验室材料科学与工程学院机电工程学院
作者单位	1.Key Laboratory of Non-ferrous Metal Alloys, Ministry of Education, Lanzhou University of Technology, Lanzhou 730050, China 2.State Key Laboratory of Gansu Advanced Non-ferrous Metal Materials, Lanzhou University of Technology, Lanzhou 730050, China;
推荐引用方式 GB/T 7714	Huang, Yong,Li, Tao,Wang, Yanlei. Gas transfer flux activating TIG welding process for aluminum alloy[J]. Hanjie Xuebao/Transactions of the China Welding Institution,2014,35(1):101-104.
APA	Huang, Yong,Li, Tao,&Wang, Yanlei.(2014).Gas transfer flux activating TIG welding process for aluminum alloy.Hanjie Xuebao/Transactions of the China Welding Institution,35(1),101-104.
MLA	Huang, Yong,et al."Gas transfer flux activating TIG welding process for aluminum alloy".Hanjie Xuebao/Transactions of the China Welding Institution 35.1(2014):101-104.