Optimizations of Friction Stir Welding Process Parameters for the Welding of Al-B4C Composite Plates using Generalized Reduced Gradient Method

Now a days Friction stir Welding (FSW) has become very popular for joining of aluminium alloys and aluminium based composites. FSW produced the effective joints on the Metal matrix composites (MMCs) without defects like porosity, interfacial chemical reactions, reinforcement segregation etc., The desired mechanical properties of the weld can be achieved, depends on the FSW parameters such as rotational speed (N), welding speed (S), axial force (F) and the reinforcement content (%R) in the MMCs. In this study, a mathematical model was developed to predict the tensile strength friction stir welded Al/B4C joints using SYSTAT software. The central composite design of four factors and five levels has been used to conduct the experiments. The optimal process parameters were estimated from the developed regression equation using Generalized Reduced Gradient (GRG) method.