Parametric Analysis and Effect of Tool on FSW Joint of 6082 Al Alloy by Taguchi Method

The Friction-stir processing is an emerging technology of plastic deformation that is based on friction stir welding (FSW). In friction stir welding, in order to get a defect free processed zone, the tool is considered to be very significant. The shoulder of the tool, which is considered as the main source of heat generation, is of two different shapes flat or tapered. Friction stir Welding is the type of welding used as a solid state joining process (below melting point), for materials that is different alloys of aluminum, magnesium etc. and also, for hard materials like steels. The effects of various parameters of the FSW welding process like rotational speed, depth of cut, feed rate, probe diameter, shoulder diameter, welding speed have been investigated to reveal their Impact on welding joint, using Taguchi Methodology. Experimental plan is performed by a Standard Orthogonal Array. The results of analysis of variance (ANOVA) indicate that, the proposed mathematical model can be adequately describing the performance, within the limit of factors being studied. This paper deals with wear characteristics during FSW, at different tool materials at different process parameter of Aluminum alloy 6082. Different Welded samples are prepared with different rotational speed, welding speed and shoulder diameter. Taguchi is applied to optimization.