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A study on an Interface Tracking Algorithm in Friction Stir Welding based on Computational Fluid Dynamics Analysis
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  • Journal title : Journal of Welding and Joining
  • Volume 34, Issue 3,  2016, pp.12-16
  • Publisher : The Korean Welding and Joining Society
  • DOI : 10.5781/JWJ.2016.34.3.12
 Title & Authors
A study on an Interface Tracking Algorithm in Friction Stir Welding based on Computational Fluid Dynamics Analysis
Kim, Su-Deok; Na, Suck-Joo;
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Friction stir welding(FSW) was studied using commercial tool, FLOW-3D. The purpose of this study is to suggest a method to apply frictional heat in Computational fluid dynamics(CFD) analysis. Cylindrical tool shape was used, and the interface cells between tool surface and workpiece were tracked by its geometrical relations in order to consider the frictional heat in FSW. After tracking the interface cells, average area concept was used to calculate the frictional heat, which is related to interface area. Also three-dimensional heat source and visco-plastic flow were modeled. The frictional heat generation rate calculated numerically from the suggested algorithm was validated with the analytical solution. The numerical solution was well matched with the analytical solution, and the maximum percentage of error was around 3%.
Friction stir welding;Computational fluid dynamics;Frictional heat;Interface tracking;
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