Effects of different protective gas on bypass metal transfer in consumable double-electrode gas metal arc welding process

	Effects of different protective gas on bypass metal transfer in consumable double-electrode gas metal arc welding process
	Shi, Yu1,2 ; Wang, Guilong 1,2; Zhu, Ming1,2 ; Fan, Ding1,2
	2014-03-01
发表期刊	Hanjie Xuebao/Transactions of the China Welding Institution
ISSN	0253360X
卷号	35 期号:3 页码:15-18
摘要	In consumable double-electrode gas metal arc welding process, since the bypass welding wire is connected to the negative electrode of the welding power supply, only gravity promotes the bypass droplet transfer to the weld pool by using pure argon as protective gas. So the size of the bypass droplet is large and the metal transfer process is unstable. A high-speed camera acquisition system and a welding control system of the consumable double-electrode gas metal arc welding have been built to collect and analyze the bypass metal transfer process. On this basis, a welding test was carried out by using the 80%Ar+20%CO2 mixture gas as protective gas. The results showed that the bypass arc burned stably on the oxide film of bypass droplet formed by CO2 in protective gas, so the electromagnetic force and the gravity promoted the bypass metal transfer together and the size of the bypass droplet was significantly reduced.
关键词	Carbon dioxide Drops Gas metal arc welding Gas welding Gases High speed cameras Metals Oxide films Acquisition systems Double electrodes Droplet transfer Electromagnetic forces Metal transfers Negative electrode Protective gas Welding control
收录类别	EI
语种	中文
出版者	Harbin Research Institute of Welding
EI入藏号	20141717618831
EI主题词	Welding electrodes
EI分类号	538.2.1 Welding Processes - 538.2.2 Welding Equipment - 742.2 Photographic Equipment - 804.2 Inorganic Compounds
来源库	Compendex
分类代码	538.2.1 Welding Processes - 538.2.2 Welding Equipment - 742.2 Photographic Equipment - 804.2 Inorganic Compounds
文献类型	期刊论文
条目标识符	https://ir.lut.edu.cn/handle/2XXMBERH/113073
专题	材料科学与工程学院
作者单位	1.Key Lab. of Non-Ferrous Metal Alloys, The Ministry of Education, Lanzhou University of Technology, Lanzhou 730050, China; 2.State Key Lab. of Gansu Advanced Non-Ferrous Metal Materials, Lanzhou University of Technology, Lanzhou 730050, China
第一作者单位	兰州理工大学
第一作者的第一单位	兰州理工大学
推荐引用方式 GB/T 7714	Shi, Yu,Wang, Guilong,Zhu, Ming,et al. Effects of different protective gas on bypass metal transfer in consumable double-electrode gas metal arc welding process[J]. Hanjie Xuebao/Transactions of the China Welding Institution,2014,35(3):15-18.
APA	Shi, Yu,Wang, Guilong,Zhu, Ming,&Fan, Ding.(2014).Effects of different protective gas on bypass metal transfer in consumable double-electrode gas metal arc welding process.Hanjie Xuebao/Transactions of the China Welding Institution,35(3),15-18.
MLA	Shi, Yu,et al."Effects of different protective gas on bypass metal transfer in consumable double-electrode gas metal arc welding process".Hanjie Xuebao/Transactions of the China Welding Institution 35.3(2014):15-18.