Experimental and Numerical Study of Friction Stir Spot Welding for 2024 Aluminum Plates

Abstract

Friction stir spot welding (FSSW) is a relatively new welding process that may have significantadvantages compared to the fusion processes as follows joining of conventionally non-fusion weldablealloys, reduced distortion and improved mechanical properties of weldable alloys joints due to the pure solidstatejoining of metals. In this paper, a three-dimensional model based on finite element analysis is used tostudy the thermal history in the spot-welding of aluminum alloy 2024. The model take place thethermomechanical property on the process of the welded metals.The thermal history and the evolution results with numerical model at the measured point in the frictionstirred spot weld have a good matching, then the prediction of the temperature history from the numericalmodel in the welded plates is acceptable.The experimental results of measuring the shear force of the welded plates show that there is a goodagreement with the increase of the rotational speed of the tool with shear force.