Article ID | Journal | Published Year | Pages | File Type |
---|---|---|---|---|
7177018 | Journal of Materials Processing Technology | 2015 | 9 Pages |
Abstract
Experiments were carried out on 2Â mm thick 304 stainless steel to verify the feasibility of Bypass Current Double Sided Arc Welding (BC-DSAW) for high-speed welding of thin plates. A high-speed camera was utilized to monitor the metal transfer process and the arc behaviour. The current density distribution of the MIG-TIG coupling arc was measured with the probe method. The bypass current increased the melting efficiency of the filler wire and reduced the heat input of the base metal; the current density at the arc centre was decreased by 30% with bypass current added. Owing to the preheating effect of the bypass arc on the filler wire, the metal transfer mode was altered from short circuiting transfer to globular transfer and the droplet growing time was shortened to increase the transfer frequency by 50%.
Related Topics
Physical Sciences and Engineering
Engineering
Industrial and Manufacturing Engineering
Authors
Yugang Miao, Xiangfang Xu, Bintao Wu, Duanfeng Han, Yang Zeng, Teng Wang,