Investigation of thermal dynamics for different leading configuration in hybrid laser-MIG welding

doi:10.1016/j.optlastec.2020.106567

IMECH-IR > 先进制造工艺力学实验室

	Investigation of thermal dynamics for different leading configuration in hybrid laser-MIG welding
	Chen, Xuyang 1,3; Yu, Gang1,2 ; He, Xiuli1,2 ; Li, Shaoxia1,2
通讯作者	Yu, Gang(gyu@imech.ac.cn) ; He, Xiuli(xlhe@imech.ac.cn)
发表期刊	OPTICS AND LASER TECHNOLOGY
	2021-02-01
卷号	134 页码:14
ISSN	0030-3992
摘要	For 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.
关键词	Configuration Hybrid welding Aluminum alloy Dynamics Model
DOI	10.1016/j.optlastec.2020.106567
收录类别	SCI
语种	英语
WOS记录号	WOS:000591864700006
关键词[WOS]	HEAT-TRANSFER ; FLUID-FLOW ; NUMERICAL-SIMULATION ; MICROSTRUCTURE ; SOLIDIFICATION ; PARAMETERS ; BEHAVIOR ; POROSITY ; PLASMA ; JOINTS
WOS研究方向	Optics ; Physics
WOS类目	Optics ; Physics, Applied
资助项目	National 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]
项目资助者	National Natural Science Foundation of China ; Chinese Academy of Sciences
引用统计	被引频次：4[WOS] [WOS记录] [WOS相关记录]
文献类型	期刊论文
条目标识符	http://dspace.imech.ac.cn/handle/311007/85566
专题	先进制造工艺力学实验室
通讯作者	Yu, Gang; He, Xiuli
作者单位	1.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
推荐引用方式 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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