Title: Experimental and numerical investigations of temperature measurement of St12 friction stir welded butt joints
Authors: Afshin Emamikhah
Addresses: Department of Mechanical Engineering, Islamic Azad University Najafabad Branch, Technical Building No. 1, Najafabad, P.O. Box 517, Isfahan, Iran
Abstract: The effect of processing parameters on mechanical properties of ST12 friction stir welded (FSW) joints were investigated in the present study. Different welded specimens were produced by employing variable rotational and travel speeds. During experiments and previous literature were determined that temperature has a large effect on the quality of welds. By controlling main parameters, optimal values throughout the experiment were defined and then an accurate 3D finite element simulation of FSW process was conducted with property of ST12 plates on the basis of optimal values. The numerical simulations are based on an Arbitrary Lagrangian Eulerian (ALE) formulation that has been implemented in Abaqus software. The experimental and simulation results indicated that rotational and travel speeds have a main role on heat input and overall temperature which influence on the properties of welds.
Keywords: friction stir welding; St12 plate; finite element method; FEM; welding parameters; butt joints; simulation; temperature; weld quality.
International Journal of Surface Science and Engineering, 2012 Vol.6 No.1/2, pp.122 - 135
Received: 08 May 2021
Accepted: 12 May 2021
Published online: 11 May 2012 *