International Journal of Mechatronics and Manufacturing Technology ISSN: 3139-5058 (Online)

Authors: Anil Kumar Deepati, Arun K. Kadian, Arpan K. Mondal, Pankaj Biswas

Abstract: The parametric analysis on friction stir welding of dissimilar aluminium alloys i.e. AA5083- AA1100 using different tool geometries were performed with experimentation. A multi response optimization problem was developed to perceive optimal process parameters to achieve better mechanical properties. Taguchi’s L16 orthogonal array design and the signal to-noise ratio (S/N ratio) concept were selected to optimize the objective functions with the experimental results. The objective functions were chosen with respect to process parameters i.e. tool rotational speed, welding speed, tool shoulder diameter, and tool pin type. The Taguchi’s approach followed by the Grey relational analysis was successfully applied to solve this multiresponse optimization problem. The ANOVA method was used to evaluate the overall output of various factors considered and optimal results were confirmed with additional experiments. The current study obtained the application viability of the Grey Taguchi method for the continuous enhancement of the weld quality in the manufacturing sector.

Keywords: FSW, AA5083, AA1100, Orthogonal array, Signal-to-noise ratio, Taguchi approach.