Weldability and distortion of Mg AZ31-to-galvanized steel SPOT plug welding joint by cold metal transfer method

doi:10.1115/1.4034009

	Weldability and distortion of Mg AZ31-to-galvanized steel SPOT plug welding joint by cold metal transfer method
	Cao, R.1; Xu, Q.W.1; Zhu, H.X.1; Mao, G.J.1; Lin, Q.1; Chen, J.H.1; Wang, Pei-Chung 2
刊名	Journal of Manufacturing Science and Engineering, Transactions of the ASME
	2017-02-01
卷号	139 期号:2
关键词	Aluminum alloys Binary alloys Brazing Galvanized metal Galvanizing Hardness Intermetallics Low carbon steel Magnesium compounds Metals Microstructure Phase interfaces Silicon compounds Soldered joints Steel Weldability Welding Welds Wire Zinc alloys Brazing interface Cold metal transfers Galvanized steels Hot-dipped galvanized Intermetallic reaction Pre-drilled holes Process Variables tensile
ISSN号	10871357
DOI	10.1115/1.4034009
英文摘要	In this study, cold metal transfer (CMT) plug welding of 1 mm thick Mg AZ31 to 1 mm thick hot-dipped galvanized mild steel (i.e., Q235) was studied. Welding tests were performed and the process variables optimized with Mg AZ61 wire and 100% argon shielding gas for a plug weld located in the center of the 25 mm overlap region. It was found that it is feasible to join 1 mm thick Mg AZ31 workpiece to 1 mm thick galvanized mild steel using CMT plug welding. The optimized process variables for CMT plug welding Mg AZ31-to-galvanized mild steel were a wire feed speed of 10.5 m/min, a predrilled hole with a diameter of 8 mm in Mg AZ31 workpiece and a welding time of 0.8 s. CMT plug welded Mg AZ31-to-galvanized mild steel joints were composed of the fusion zone between Mg AZ31 base metal and Mg weld metal, Mg weld metal (i.e., combined base metal, filler wire and Zn coating), and the brazing interface between magnesium weld metal and galvanized mild steel. The brazing interface mainly consisted of Al, Zn, Mg, Si intermetallic compounds and oxides (i.e., Fe3Al, Mg2Si, MgZn, and MgZn2), and magnesium solid solution. The static strength of CMT welded-brazed Mg AZ31-galvanized steel was determined primarily by the strength and area of the brazed interface and thickness of the intermetallic reaction layer. © 2017 by ASME.
WOS研究方向	Engineering
语种	英语
出版者	American Society of Mechanical Engineers (ASME)
WOS记录号	WOS:000393881400001
内容类型	期刊论文
源URL	[http://ir.lut.edu.cn/handle/2XXMBERH/114612]
专题	材料科学与工程学院学报编辑部
作者单位	1.State Key Laboratory of Advanced Processing and Recycling of Non-ferrous Metals, Lanzhou University of Technology, Langongping 287 Road Qilihe District, 730050, China; 2.Manufacturing Systems Research Lab, General Motors Global Research and Development Center, MC 480-106-RA2, 30500 Mound Road, Warren; MI; 48090, United States
推荐引用方式 GB/T 7714	Cao, R.,Xu, Q.W.,Zhu, H.X.,et al. Weldability and distortion of Mg AZ31-to-galvanized steel SPOT plug welding joint by cold metal transfer method[J]. Journal of Manufacturing Science and Engineering, Transactions of the ASME,2017,139(2).
APA	Cao, R..,Xu, Q.W..,Zhu, H.X..,Mao, G.J..,Lin, Q..,...&Wang, Pei-Chung.(2017).Weldability and distortion of Mg AZ31-to-galvanized steel SPOT plug welding joint by cold metal transfer method.Journal of Manufacturing Science and Engineering, Transactions of the ASME,139(2).
MLA	Cao, R.,et al."Weldability and distortion of Mg AZ31-to-galvanized steel SPOT plug welding joint by cold metal transfer method".Journal of Manufacturing Science and Engineering, Transactions of the ASME 139.2(2017).