%0 Journal Article
%T Numerical Simulation of Molten Metal Droplet Behavior in Gas Metal Arc Welding by Three-Dimensional Incompressible Smoothed Particle Hydrodynamics Method
%A Hisaya Komen
%A Masaya Shigeta
%A Manabu Tanaka
%J Journal of Flow Control, Measurement & Visualization
%P 66-81
%@ 2329-3330
%D 2018
%I Scientific Research Publishing
%R 10.4236/jfcmv.2018.62007
%X The numerical model was developed using a SPH (Smoothed Particle Hydrodynamics) method and the projected transfer phenomena during a GMA (Gas Metal Arc) welding were simulated by the model to clarify mechanisms of the phenomena. As a result, the droplet transfer mode obtained from this calculation was regarded as a projected transfer mode in which the liquid column grew about 1 mm and a droplet grew up until its diameter became large the same as a wire diameter</span><span style=\"font-family:Verdana;\">,&nbsp;</span><span style=\"font-family:Verdana;\">after that it was detached from the tip of the column. In addition, 10 droplets were formed for 0.1 s through these growth and detachment processes at the tip of a wire. To compare with the numerical results, actual GMA welding was carried out and molten metal droplet transfers were taken by high speed camera. The diameter of a wire, the length of a liquid column, the velocity of a droplet right before it reached a weld pool obtained by simulation showed good agreement with experiment.
%K SPH Method
%K Gas Metal Arc Welding
%K Molten Metal Droplet Transfer
%K Simulation
%U http://www.scirp.org/journal/PaperInformation.aspx?PaperID=83718