A Finite Element Model to Simulate Defect Formation during Friction Stir Welding

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	A Finite Element Model to Simulate Defect Formation during Friction Stir Welding
	Wu ZQ(吴振强); Wang M(王敏); Yu T(于涛); Zhang X(张骁); Zhang HJ(张会杰); Zhu Z(朱智)
刊名	METALS
	2017
卷号	7 期号:7 页码:1-15
关键词	friction stir welding Al6061-T6 material flow welding detect finite element simulation coupled Eulerian Lagrangian
ISSN号	2075-4701
通讯作者	Zhu Z(朱智)
产权排序	1
中文摘要	In this study, a 3D coupled thermo-mechanical finite element model is developed to predict and analyze the defect formation during friction stir welding based on coupled Eulerian Lagrangian method. The model is validated by comparing the estimated welding temperature, processed zone shape and void size with those obtained experimentally. The results compared indicate that the simulated temperature and the data measured are in good agreement with each other. In addition, the model can predict the plasticized zone shape and the presence of a void in the weld quite accurately. However, the void size is overestimated. The effects of welding parameters and tool pin profile are also analyzed. The results reveal that welding at low welding speed or high tool rotational speed could produce a smaller void. Moreover, compared to a smooth tool pin, a featured tool pin can enhance plastic flow in the weld and achieve defect-free weldment. The results are helpful for the optimization of the welding process and the design of welding tools.
WOS标题词	Science & Technology ; Technology
类目[WOS]	Materials Science, Multidisciplinary ; Metallurgy & Metallurgical Engineering
研究领域[WOS]	Materials Science ; Metallurgy & Metallurgical Engineering
关键词[WOS]	MATERIAL FLOW ; PROCESS PARAMETERS ; ALUMINUM-ALLOYS ; CONTACT
收录类别	SCI
语种	英语
WOS记录号	WOS:000407365900027
内容类型	期刊论文
源URL	[http://ir.sia.cn/handle/173321/20845]
专题	沈阳自动化研究所_空间自动化技术研究室
作者单位	State Key Laboratory of Robotics, Shenyang Institute of Automation, Chinese Academy of Sciences, Shenyang 110016, China
推荐引用方式 GB/T 7714	Wu ZQ,Wang M,Yu T,et al. A Finite Element Model to Simulate Defect Formation during Friction Stir Welding[J]. METALS,2017,7(7):1-15.
APA	Wu ZQ,Wang M,Yu T,Zhang X,Zhang HJ,&Zhu Z.(2017).A Finite Element Model to Simulate Defect Formation during Friction Stir Welding.METALS,7(7),1-15.
MLA	Wu ZQ,et al."A Finite Element Model to Simulate Defect Formation during Friction Stir Welding".METALS 7.7(2017):1-15.