Finite Elements Modelling of Friction Stir Welding

Abstract

Friction stir welding method includes translating a rotating non-consumable cylindrical device along the two-platform interface. The friction between the shoulder of the instrument and the surface of the workpiece produces heat. The shoulder compresses the plasticized material and contains the weld area. Friction heats the material that is then extruded around the instrument before it is forged by high down pressure. The heat generated at the interface between tool and workpiece is the key element to a successful FSW. In this work, FSW process was modeled using ABAQUS finite elements software under different welding conditions. The modeling results were verified by comparing them with experimental results. This model can be used to facilitate determining the optimum welding parameters to be used to achieve the best welding quality using friction stir welding process.