Dissimilar friction stir spot welding without key hole between AZ31B magnesium alloy and 5052 aluminum alloy

doi:10.4028/www.scientific.net/AMR.652-654.2320

	Dissimilar friction stir spot welding without key hole between AZ31B magnesium alloy and 5052 aluminum alloy
	Wang, Xijing 1; Guo, Tingkai 1; Zhang, Zhongke 1; Wang, Pei-chung 2; Shi, Jipeng 1; Wu, Yulian 1; Lu, Yongxin 1
	2013
关键词	AZ31B magnesium 5052 aluminum FSSW Orthogonal experiment Microstructure
卷号	652-654
DOI	10.4028/www.scientific.net/AMR.652-654.2320
页码	2320-+
英文摘要	To study the impact of the welding process parameters on the spot weld surface molding, mechanical performance and the stir zone microstructure, we use friction stir spot welding without keyhole method which designed and developed by ourselves to carry on the lap welding between 1mm sheet of AZ31B magnesium alloy and 3mm sheet of 5052 aluminum alloy with magnesium on top and aluminum bottom. The result of the orthogonal test shows that the shoulder friction time have a greater impact on the forming of the surface of the welding joint; When the rotating speed of 1000 r/min, shoulder friction time of 4s, pin length of 3.5mm, the tensile shearing force of the welded joint achieves its maximum value of 2.46 KN. Through observating the microstructure of the welding joint's section stirring zone, we found the typical joint microstructure of Dissimilar metal. Through analyzing the microstructure of the tensile fracture, we found that fracture was cleavage fracture. We also found the fracture mechanism of the welding joint was cleavage fracture in microcosm but brittle fracture macrocosm.
会议录	ADVANCES IN MATERIALS AND MATERIALS PROCESSING, PTS 1-3
会议录出版者	TRANS TECH PUBLICATIONS LTD
会议录出版地	KREUZSTRASSE 10, 8635 DURNTEN-ZURICH, SWITZERLAND
语种	英语
WOS研究方向	Engineering ; Materials Science
WOS记录号	WOS:000320475901117
内容类型	会议论文
源URL	[http://119.78.100.223/handle/2XXMBERH/37016]
专题	材料科学与工程学院
作者单位	1.Lanzhou Univ Technol, State Key Lab Adv Nonferrous Mat, Lanzhou 730050, Peoples R China; 2.Mfg Syst Res Lab Gen Motors, Warren, MI USA
推荐引用方式 GB/T 7714	Wang, Xijing,Guo, Tingkai,Zhang, Zhongke,et al. Dissimilar friction stir spot welding without key hole between AZ31B magnesium alloy and 5052 aluminum alloy[C]. 见:.