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Numerical Simulation of Material Flow and Analysis of Welding Characteristics in Friction Stir Welding Process
Luo HT(骆海涛)1,2; Wu TK(武廷课)1,3; Wang, Peng1,4; Zhao, Fengqun1,3; Wang, Haonan1,4; Li, Yuxin1,4
Department空间自动化技术研究室
Source PublicationMETALS
ISSN2075-4701
2019
Volume9Issue:6Pages:1-20
Indexed BySCI
WOS IDWOS:000475356500005
Contribution Rank1
Funding OrganizationNational Natural Science Foundation of China ; Youth Innovation Promotion Association, CAS ; 'JXS' innovation fund, SIA
Keywordmaterial flow finite element model temperature field microstructure welding defects
AbstractFriction 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.
Language英语
WOS SubjectMaterials Science, Multidisciplinary ; Metallurgy & Metallurgical Engineering
WOS KeywordMECHANICAL-PROPERTIES ; TOOL ; MICROSTRUCTURE ; PROFILES ; BEHAVIOR ; MODEL
WOS Research AreaMaterials Science ; Metallurgy & Metallurgical Engineering
Funding ProjectNational Natural Science Foundation of China[51505470] ; Youth Innovation Promotion Association, CAS ; 'JXS' innovation fund, SIA ; National Natural Science Foundation of China[51505470] ; Youth Innovation Promotion Association, CAS ; 'JXS' innovation fund, SIA
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Cited Times:1[WOS]   [WOS Record]     [Related Records in WOS]
Document Type期刊论文
Identifierhttp://ir.sia.cn/handle/173321/25332
Collection空间自动化技术研究室
Corresponding AuthorLuo HT(骆海涛)
Affiliation1.State Key Laboratory of Robotics, Shenyang Institute of Automation, Chinese Academy of Sciences, Shenyang 110016, China
2.Institutes for Robotics and Intelligent Manufacturing, Chinese Academy of Sciences, Shenyang 110016, China
3.School of Mechanical Engineering, Shenyang Ligong University, Shenyang 110159, China
4.Institute of Mechanical Engineering and Automation, Northeastern University, Shenyang 110819, China
Recommended Citation
GB/T 7714
Luo HT,Wu TK,Wang, Peng,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 Luo HT,Wu TK,Wang, Peng,Zhao, Fengqun,Wang, Haonan,&Li, Yuxin.(2019).Numerical Simulation of Material Flow and Analysis of Welding Characteristics in Friction Stir Welding Process.METALS,9(6),1-20.
MLA Luo HT,et al."Numerical Simulation of Material Flow and Analysis of Welding Characteristics in Friction Stir Welding Process".METALS 9.6(2019):1-20.
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