Arc characteristics and metal transfer behavior in narrow gap gas metal arc welding process
Zhang, Gang; Shi, Yu; Zhu, Ming; Fan, Ding
2017-07
发表期刊JOURNAL OF MATERIALS PROCESSING TECHNOLOGY
ISSN0924-0136
卷号245页码:15-23
摘要During the constant-voltage welding machine employed welding process, a common phenomenon of arc attachment point moving from the bottom of the narrow gap to the sidewalls occurs, and metal transfer behavior appears greatly different. A mechanism that the arc inherent-self regulation combines the minimum arc voltage principle was proposed to elaborate the arc climbing up process along the sidewalls. The arc shape was approximately classified into three patterns by the change of arc conductive path, and the amount of the arc conductive path and its distributive symmetry determine the action of the electromagnetic force on the droplet as well as the metal transfer mode. As the number of the arc conductive paths increases, and the conductive paths distribute symmetrically, the necking process of the droplet detachment occurs more easily, and the metal transfer from globular mode to spray mode becomes more smoothly. Simulation results match the experiments and verify the mechanism proposed. In a constant-current welding power source adopted condition, the arc climbing up phenomenon cannot be observed, and a stable welding process is obtained. (C) 2017 Elsevier B.V. All rights reserved.
关键词GMAW Metal transfer Minimum arc voltage principle Arc inherent self-regulation Arc appearance Narrow gap
DOI10.1016/j.jmatprotec.2017.02.006
收录类别SCI ; SCIE
语种英语
资助项目National Natural Science Foundation of China[61365011] ; Natural Science Foundation of Gansu Province of China[1508RJZA070] ; State Key Laboratory of Advanced Processing and Recycling of Nonferrous Metals of China[SKLAB02015008]
WOS研究方向Engineering ; Materials Science
WOS类目Engineering, Industrial ; Engineering, Manufacturing ; Materials Science, Multidisciplinary
WOS记录号WOS:000399518700003
出版者ELSEVIER SCIENCE SA
EI入藏号20170903392592
EI主题词Gas welding
EI分类号538.2.1 Welding Processes - 971 Social Sciences
引用统计
被引频次:36[WOS]   [WOS记录]     [WOS相关记录]
文献类型期刊论文
条目标识符https://ir.lut.edu.cn/handle/2XXMBERH/33208
专题省部共建有色金属先进加工与再利用国家重点实验室
材料科学与工程学院
通讯作者Shi, Yu
作者单位Lanzhou Univ Technol, State Key Lab Adv Proc & Recycling Nonferrous Met, Lanzhou 730050, Peoples R China
第一作者单位省部共建有色金属先进加工与再利用国家重点实验室
通讯作者单位省部共建有色金属先进加工与再利用国家重点实验室
第一作者的第一单位省部共建有色金属先进加工与再利用国家重点实验室
推荐引用方式
GB/T 7714
Zhang, Gang,Shi, Yu,Zhu, Ming,et al. Arc characteristics and metal transfer behavior in narrow gap gas metal arc welding process[J]. JOURNAL OF MATERIALS PROCESSING TECHNOLOGY,2017,245:15-23.
APA Zhang, Gang,Shi, Yu,Zhu, Ming,&Fan, Ding.(2017).Arc characteristics and metal transfer behavior in narrow gap gas metal arc welding process.JOURNAL OF MATERIALS PROCESSING TECHNOLOGY,245,15-23.
MLA Zhang, Gang,et al."Arc characteristics and metal transfer behavior in narrow gap gas metal arc welding process".JOURNAL OF MATERIALS PROCESSING TECHNOLOGY 245(2017):15-23.
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