Numerical Simulation of Material Flow and Analysis of Welding Characteristics in Friction Stir Welding Process

CORC > 沈阳自动化研究所 > 中国科学院沈阳自动化研究所 > 空间自动化技术研究室

	Numerical Simulation of Material Flow and Analysis of Welding Characteristics in Friction Stir Welding Process
	Wu TK(武廷课)2,4 ; Wang, Peng1,4 ; Zhao, Fengqun 2,4; Wang, Haonan 1,4; Li, Yuxin 1,4; Luo HT(骆海涛)3,4
刊名	METALS
	2019
卷号	9 期号:6 页码:1-20
关键词	material flow finite element model temperature field microstructure welding defects
ISSN号	2075-4701
产权排序	1
英文摘要	Friction stir welding (FSW) material flow has an important influence on weld formation. The finite element model of the FSW process was established. The axial force and the spindle torque of the welding process were collected through experiments. The feasibility of the finite element model was verified by a data comparison. The temperature field of the welding process was analyzed hierarchically. It was found that the temperature on the advancing side is about 20 degrees C higher than that on the retreating side near the welding seam, but that the temperature difference between the two sides of the middle and lower layers was decreased. The particle tracking technique was used to study the material flow law in different areas of the weld seam. The results showed that part of the material inside the tool pin was squeezed to the bottom of the workpiece. The material on the upper surface tends to move downward under the influence of the shoulder extrusion, while the material on the lower part moves spirally upward under the influence of the tool pin. The material flow amount of the advancing side is higher than that of the retreating side. The law of material flow reveals the possible causes of the welding defects. It was found that the abnormal flow of materials at a low rotation speed and high welding speed is prone to holes and crack defects. The forming reasons and material flow differences in different regions are studied through the microstructure of the joint cross section. The feasibility of a finite element modeling and simulation analysis is further verified.
资助项目	National Natural Science Foundation of China[51505470] ; Youth Innovation Promotion Association, CAS ; 'JXS' innovation fund, SIA
WOS关键词	MECHANICAL-PROPERTIES ; TOOL ; MICROSTRUCTURE ; PROFILES ; BEHAVIOR ; MODEL
WOS研究方向	Materials Science ; Metallurgy & Metallurgical Engineering
语种	英语
WOS记录号	WOS:000475356500005
资助机构	National Natural Science Foundation of China ; Youth Innovation Promotion Association, CAS ; 'JXS' innovation fund, SIA
内容类型	期刊论文
源URL	[http://ir.sia.cn/handle/173321/25332]
专题	沈阳自动化研究所_空间自动化技术研究室
通讯作者	Luo HT(骆海涛)
作者单位	1.Institute of Mechanical Engineering and Automation, Northeastern University, Shenyang 110819, China 2.School of Mechanical Engineering, Shenyang Ligong University, Shenyang 110159, China 3.Institutes for Robotics and Intelligent Manufacturing, Chinese Academy of Sciences, Shenyang 110016, China 4.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 TK,Wang, Peng,Zhao, Fengqun,et al. Numerical Simulation of Material Flow and Analysis of Welding Characteristics in Friction Stir Welding Process[J]. METALS,2019,9(6):1-20.
APA	Wu TK,Wang, Peng,Zhao, Fengqun,Wang, Haonan,Li, Yuxin,&Luo HT.(2019).Numerical Simulation of Material Flow and Analysis of Welding Characteristics in Friction Stir Welding Process.METALS,9(6),1-20.
MLA	Wu TK,et al."Numerical Simulation of Material Flow and Analysis of Welding Characteristics in Friction Stir Welding Process".METALS 9.6(2019):1-20.