Y. Zhang, K. Li, University of Kentucky, Lexington, KY; C. Wu, Shandong University, Ji’nan, Shandong, China; G. X. Xu, Shandong University, Jinan, China

Summary: Double¨Celectrode GMAW decouples the base metal current from the torch current so that the melting rate can be increased independently. To understand this novel process and establish foundations to support it, this paper has modeled and simulated its wire melting rate, droplet formation and transfer, and weld pool behaviors.