COMPARATIVE EVALUATION OF TEMPERATURE DISTRIBUTION IN GTAW AND FSW JOINTS OF AA 5059 ALUMINIUM ALLOY
Keywords:
Friction stir welding, Gas tungsten arc welding, Temperature distribution, Finite element analysisAbstract
AA 5059 alloy is best suited for military applications because of high strength to weight ratio and high toughness. Also this high magnesium content aluminium alloy is used to make ship hull structure because of good corrosion resistance and good strength. Hence this study aimed to experimentally explore the thermal history of a work piece involving gas tungsten arc welding and friction stir welding. K-type thermocouples are used to record the temperature history at six different locations on work piece. The results of these analyses indicate that low temperature values were recorded in FSW process compared to GTAW process. The results of the simulation are in good agreement with that of experimental results.
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