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

doi:10.1016/j.optlastec.2020.106567

CORC > 力学研究所 > 中国科学院力学研究所 > 先进制造工艺力学重点实验室

	Investigation of thermal dynamics for different leading configuration in hybrid laser-MIG welding
	Chen, Xuyang 1,3; Yu, Gang 2,3; He, Xiuli 2,3; Li, Shaoxia 2,3
刊名	OPTICS AND LASER TECHNOLOGY
	2021-02-01
卷号	134 页码:14
关键词	Configuration Hybrid welding Aluminum alloy Dynamics Model
ISSN号	0030-3992
DOI	10.1016/j.optlastec.2020.106567
通讯作者	Yu, Gang(gyu@imech.ac.cn) ; He, Xiuli(xlhe@imech.ac.cn)
英文摘要	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.
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]
WOS关键词	HEAT-TRANSFER ; FLUID-FLOW ; NUMERICAL-SIMULATION ; MICROSTRUCTURE ; SOLIDIFICATION ; PARAMETERS ; BEHAVIOR ; POROSITY ; PLASMA ; JOINTS
WOS研究方向	Optics ; Physics
语种	英语
WOS记录号	WOS:000591864700006
资助机构	National Natural Science Foundation of China ; Chinese Academy of Sciences
内容类型	期刊论文
源URL	[http://dspace.imech.ac.cn/handle/311007/85565]
专题	力学研究所_先进制造工艺力学重点实验室
通讯作者	Yu, Gang; He, Xiuli
作者单位	1.Tsinghua Univ, Dept Mech Engn, Beijing 100084, Peoples R China 2.Univ Chinese Acad Sci, Sch Engn Sci, Beijing 100049, Peoples R China 3.Chinese Acad Sci, Inst Mech, Key Lab Mech Adv Mfg, Beijing 100190, 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.