Method of arc-assisted laser wire welding-brazing between aluminum and galvanized steel with filler powder

doi:10.3788/CJL201643.0702007

CORC > 兰州理工大学 > 兰州理工大学 > 机电工程学院

	Method of arc-assisted laser wire welding-brazing between aluminum and galvanized steel with filler powder
	Li, Chunling 1,2; Fan, Ding 1; Yu, Xiaoquan 1; Yu, Shurong 2
刊名	Zhongguo Jiguang/Chinese Journal of Lasers
	2016-07-10
卷号	43 期号:7
关键词	Binary alloys Brazing Dissimilar metals Filler metals Fillers Fracture testing Galvanizing Grain boundaries Intermetallics Iron alloys Mechanical properties Morphology Powder metals Scanning electron microscopy Seam welding Surface morphology Tensile strength Welds Wire Filler wire Fracture morphology Galvanized steel sheets Galvanized steels Laser technique Process condition Welding parameters X ray diffractometers
ISSN号	02587025
DOI	10.3788/CJL201643.0702007
英文摘要	By means of arc-assisted laser welding and with the addition of Al-12%Si welding wire, the butt welding-brazing experiment of dissimilar metals joining aluminum alloy to galvanized steel sheet with filler powder is conducted. The influence of wire feeding speed on weld appearance is discussed. The microstructure, fracture morphology, phase composition, and mechanical property of welded joints are investigated by means of optical microscope, scanning electron microscope, X-ray diffractometer, and material testing machine. The results show that under suitable welding parameters and process conditions, a welding-brazing joint with high quality appearances at both front and back sides can be obtained. When the welding speed is fixed, with the increment of wire feeding speed, the spreading width of welds at the front side decreases, while that of the back side increases. Si element enriches mainly in the upper part of joints, and the welded seams consist of α(Al) substrate and Al-Si eutectic phases along grain boundaries. A kind of non-uniform intermetallic compounds is formed in the Al/steel interface layer which consists of Al8Fe2Si, Fe4Al13, and Fe2Al5. The maximum tensile strength of joints is up to 130 MPa, and the surface morphology of fractures possesses a ductile and brittle hybrid characteristic. © 2016, Chinese Lasers Press. All right reserved.
语种	中文
出版者	Science Press
内容类型	期刊论文
源URL	[http://ir.lut.edu.cn/handle/2XXMBERH/112508]
专题	机电工程学院材料科学与工程学院
作者单位	1.State Key Laboratory of Advanced Processing and Recycling of Nonferrous Metals, Lanzhou University of Technology, Lanzhou; Gansu; 730050, China 2.School of Mechanical and Electrical Engineering, Lanzhou University of Technology, Lanzhou; Gansu; 730050, China;
推荐引用方式 GB/T 7714	Li, Chunling,Fan, Ding,Yu, Xiaoquan,et al. Method of arc-assisted laser wire welding-brazing between aluminum and galvanized steel with filler powder[J]. Zhongguo Jiguang/Chinese Journal of Lasers,2016,43(7).
APA	Li, Chunling,Fan, Ding,Yu, Xiaoquan,&Yu, Shurong.(2016).Method of arc-assisted laser wire welding-brazing between aluminum and galvanized steel with filler powder.Zhongguo Jiguang/Chinese Journal of Lasers,43(7).
MLA	Li, Chunling,et al."Method of arc-assisted laser wire welding-brazing between aluminum and galvanized steel with filler powder".Zhongguo Jiguang/Chinese Journal of Lasers 43.7(2016).