An investigation of dynamical metal transfer in GMAW : effects of argon shielding gas
Ling, Shih Fu
Date of Issue2014
School of Mechanical and Aerospace Engineering
The unbalance radial electromagnetic force was firstly obtained by measuring the real-time input electrical impedance of GMAW. This force acts as an attaching force because it pushes the droplet aside of the welding wire and sticks on the tip of welding wire as result of surface tension force. In spray transfer mode, lower unbalance radial electromagnetic force was observed when argon shielding gas was used. The finding presented in this paper is contrary to the literature which reported that higher electromagnetic force is desirable for faster transfer rate of droplets in spray transfer mode.
DRNTU::Engineering::Materials::Mechanical strength of materials
Journal of materials processing technology
© 2013 Elsevier B.V. This is the author created version of a work that has been peer reviewed and accepted for publication by Journal of Materials Processing Technology, Elsevier B.V. It incorporates referee’s comments but changes resulting from the publishing process, such as copyediting, structural formatting, may not be reflected in this document. The published version is available at: [DOI:http://dx.doi.org/10.1016/j.jmatprotec.2013.08.003].