EFFECT OF PROCESS PARAMETERS ON HARDNESS &TENSILE STRENGTH IN FSW OF AL7050 ALLOY

Friction stir welding technique is a solid state joining method, It is non-conventionally used for welding the aluminium and aluminium alloys. These type of material are very light in weight but having very high strength. In the present study, tensile strength &brinell hardness of the FSW weld on various parameters have been investigated. Two plates of AL7050 were joined by using vertical milling machine. The main aim of experiment is to get the optimum tensile strength and hardness. Here Taguchi L9 orthogonal array methodology was used, in which we consider 3 levels and 3factors. MINITAB-17 was used for graphical presentation and mathematical solution. ANOVA approach was used for feasibility of experimental model. Rotational speed, traverse speed and tilt angle were used design approach parameters in this experiment.