Lanzhou University of Technology Institutional Repository (LUT_IR)
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 |
ISSN | 0924-0136 |
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 |
DOI | 10.1016/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 | |
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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