Gas transfer flux activating TIG welding process for aluminum alloy

	Gas transfer flux activating TIG welding process for aluminum alloy
	Huang, Yong1,2 ; Li, Tao2 ; Wang, Yanlei 2
	2014
发表期刊	Hanjie Xuebao/Transactions of the China Welding Institution
ISSN	0253360X
卷号	35 期号:1 页码:101-104
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.
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
收录类别	EI
语种	中文
出版者	Harbin Research Institute of Welding
EI入藏号	20141017431007
EI主题词	Fluxes
EI分类号	538.2 Welding - 538.2.1 Welding Processes - 541.2 Aluminum Alloys - 549.3 Nonferrous Metals and Alloys excluding Alkali and Alkaline Earth Metals - 631.1 Fluid Flow, General - 804 Chemical Products Generally - 951 Materials Science
来源库	Compendex
分类代码	538.2 Welding - 538.2.1 Welding Processes - 541.2 Aluminum Alloys - 549.3 Nonferrous Metals and Alloys excluding Alkali and Alkaline Earth Metals - 631.1 Fluid Flow, General - 804 Chemical Products Generally - 951 Materials Science
文献类型	期刊论文
条目标识符	https://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.State Key Laboratory of Gansu Advanced Non-ferrous Metal Materials, Lanzhou University of Technology, Lanzhou 730050, China; 2.Key Laboratory of Non-ferrous Metal Alloys, Ministry of Education, Lanzhou University of Technology, Lanzhou 730050, China
第一作者单位	省部共建有色金属先进加工与再利用国家重点实验室; 兰州理工大学
第一作者的第一单位	省部共建有色金属先进加工与再利用国家重点实验室
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.