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Investigation of thermal dynamics for different leading configuration in hybrid laser-MIG welding
Chen, Xuyang1,3; Yu, Gang1,2; He, Xiuli1,2; Li, Shaoxia1,2
Corresponding AuthorYu, Gang(gyu@imech.ac.cn) ; He, Xiuli(xlhe@imech.ac.cn)
Source PublicationOPTICS AND LASER TECHNOLOGY
2021-02-01
Volume134Pages:14
ISSN0030-3992
AbstractFor hybrid laser-MIG welding of aluminum alloy, the weld bead quality is decided by the thermal dynamics in the molten pool. In order to analyze the influence of leading configuration on thermal behavior and mass transfer, a three-dimensional numerical model is established. In the model, a combined model is utilized to simulate the multiple reflections and Fresnel absorption of laser beam. The laser-arc interaction is considered and the plasma is shrinked for arc-leading configuration. Surface tension, electromagnetic force, buoyancy are considered to investigate the fluid flow pattern, and droplet impact and arc pressure are taken into account to track the free surface. For different configurations, the temperature and velocity field, together with concentration distribution of magnesium and zinc are compared and analyzed. The results show that transport phenomena of the molten pool is strongly affected by the configuration. For arc-leading (AL) configuration, it is easier to get a larger penetration. Meanwhile, the concentration distribution of magnesium and zinc is more homogeneous for laser-leading (LL) configuration. Furthermore, the developed model can provide theoretical basis for processing experiments.
KeywordConfiguration Hybrid welding Aluminum alloy Dynamics Model
DOI10.1016/j.optlastec.2020.106567
Indexed BySCI
Language英语
WOS IDWOS:000591864700006
WOS KeywordHEAT-TRANSFER ; FLUID-FLOW ; NUMERICAL-SIMULATION ; MICROSTRUCTURE ; SOLIDIFICATION ; PARAMETERS ; BEHAVIOR ; POROSITY ; PLASMA ; JOINTS
WOS Research AreaOptics ; Physics
WOS SubjectOptics ; Physics, Applied
Funding ProjectNational Natural Science Foundation of China[11672304] ; National Natural Science Foundation of China[11502269] ; National Natural Science Foundation of China[11272316] ; National Natural Science Foundation of China[11272317] ; Chinese Academy of Sciences[yz201636]
Funding OrganizationNational Natural Science Foundation of China ; Chinese Academy of Sciences
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Document Type期刊论文
Identifierhttp://dspace.imech.ac.cn/handle/311007/85566
Collection先进制造工艺力学实验室
Corresponding AuthorYu, Gang; He, Xiuli
Affiliation1.Chinese Acad Sci, Inst Mech, Key Lab Mech Adv Mfg, Beijing 100190, Peoples R China
2.Univ Chinese Acad Sci, Sch Engn Sci, Beijing 100049, Peoples R China
3.Tsinghua Univ, Dept Mech Engn, Beijing 100084, Peoples R China
Recommended Citation
GB/T 7714
Chen, Xuyang,Yu, Gang,He, Xiuli,et al. Investigation of thermal dynamics for different leading configuration in hybrid laser-MIG welding[J]. OPTICS AND LASER TECHNOLOGY,2021,134:14.
APA Chen, Xuyang,Yu, Gang,He, Xiuli,&Li, Shaoxia.(2021).Investigation of thermal dynamics for different leading configuration in hybrid laser-MIG welding.OPTICS AND LASER TECHNOLOGY,134,14.
MLA Chen, Xuyang,et al."Investigation of thermal dynamics for different leading configuration in hybrid laser-MIG welding".OPTICS AND LASER TECHNOLOGY 134(2021):14.
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