Abstract Using a transient thermal finite element analysis, the thermal behavior during friction stir welding (FSW) of aluminum sheets for aerospace applications was calculated. The thermal behavior during the FSW process is of interest for all aspects of distortion engineering or microstructural interpretations for material design. In the presented approach to determine the amount of deformation caused by the thermal residual stresses only, the measured temperature history of the welding tool, the thermomechanical material properties and the thermal contact properties have to be known. Since the calculated time-dependent temperature distribution agrees very well with experimentally measured temperatures at seven different locations during a FSW experiment, it is concluded that the model accurately predicts the thermal history during welding. In addition, a first attempt to calculate the distortion, due to thermal residual stresses, is presented and compared to experimentally measured distortion. Although the calculated values of the distortion are too low compared to experimental results, the approach gives a first impression on the origin of the distortion and will be pursued in further investigations.
Simulation of thermal behavior during friction stir welding process for predicting residual stresses
CEAS Aeronautical Journal ; 6 , 2 ; 271-278
27.12.2014
8 pages
Aufsatz (Zeitschrift)
Elektronische Ressource
Englisch
Simulation of thermal behavior during friction stir welding process for predicting residual stresses
Online Contents | 2014
|Taylor & Francis Verlag | 2022
|Numerical Simulation of the Friction Stir Spot Welding Process
SAE Technical Papers | 2005
|Friction stir welding process goes commercial
Tema Archiv | 1997
|A novel joining process - friction stir welding
Tema Archiv | 1997
|