The transient behaviours of free surface in a fully penetrated weld pool in gas tungsten arc welding

doi:10.1016/j.jmapro.2018.10.024

	The transient behaviours of free surface in a fully penetrated weld pool in gas tungsten arc welding
	Huang, Jiankang 1,2; Pan, Wei 1; Chen, Jinsong 2; Shao, Yan 2; Yang, Maohong 1; Zhang, Yuming 2
刊名	JOURNAL OF MANUFACTURING PROCESSES
	2018-12
卷号	36 页码:405-416
关键词	Stationary gas tungsten arc welding Free surface Partial penetration Full penetration
ISSN号	1526-6125
DOI	10.1016/j.jmapro.2018.10.024
英文摘要	In order to study the phenomenon of the weld pool free surface evolution from partial to full penetration in gas tungsten arc welding (GTAW), the measurement method based on the lattice laser reflection on the weld pool surface was designed. Lattice lasers information and the concavity-convexity in the weld pool free surface were analyzed. Based on the volume of fluid method and the basic principle of fluid mechanics, temperature field and the flow field model which considered the free surface in a fully penetrated weld pool in GTAW were established. Fluid flow including the factor of buoyancy force, electromagnetic force and surface tension gradient was numerically analyzed for a fully penetrated weld pool in stationary GTAW. The result shows that: thermal expansion of metals is the main reason for the convex surface of weld pool at partial penetration. When fully penetrated, the concave surface of the lower surface is greater than that of the upper surface.
资助项目	National Science Foundation of China (NSFC)[51205179]
WOS研究方向	Engineering
语种	英语
出版者	ELSEVIER SCI LTD
WOS记录号	WOS:000454468100042
状态	已发表
内容类型	期刊论文
源URL	[http://119.78.100.223/handle/2XXMBERH/32304]
专题	材料科学与工程学院省部共建有色金属先进加工与再利用国家重点实验室
通讯作者	Huang, Jiankang; Zhang, Yuming
作者单位	1.Lanzhou Univ Technol, State Key Lab Adv Proc & Recycling Nonferrous Met, Lanzhou 730050, Gansu, Peoples R China 2.Univ Kentucky, Inst Sustainable Mfg, Dept Elect & Comp Engn, Lexington, KY 40506 USA
推荐引用方式 GB/T 7714	Huang, Jiankang,Pan, Wei,Chen, Jinsong,et al. The transient behaviours of free surface in a fully penetrated weld pool in gas tungsten arc welding[J]. JOURNAL OF MANUFACTURING PROCESSES,2018,36:405-416.
APA	Huang, Jiankang,Pan, Wei,Chen, Jinsong,Shao, Yan,Yang, Maohong,&Zhang, Yuming.(2018).The transient behaviours of free surface in a fully penetrated weld pool in gas tungsten arc welding.JOURNAL OF MANUFACTURING PROCESSES,36,405-416.
MLA	Huang, Jiankang,et al."The transient behaviours of free surface in a fully penetrated weld pool in gas tungsten arc welding".JOURNAL OF MANUFACTURING PROCESSES 36(2018):405-416.