Optimization of stirrer parameters by Taguchi method for a better ceramic particle stirring performance in the production of Aluminum Alloy Matrix Composite

Abstract

Aluminum alloy ceramic matrix composites have become widely used in a variety of sectors and will grow in the future with the growth of measures to reduce environmental pollution and the necessity to reduce the use of fossil fuels. Stir casting is the most cost-effective method for mass-producing Aluminum Alloy Matrix Composite; however, it still has certain challenges that need to optimize for its performance. The current gap is to anticipate, recognize, and strive to minimize casting flaws during the liquid phase. Taguchi method for the design of the experiment was used to optimize the stirrer parameters. The signal-to-noise (S/N) ratio (larger is better), hardness, and ultimate tensile strength were employed as response output variables. In this work, it was confirmed that the mechanical properties of aluminum alloys can be enhanced better if the method of adding SiC and SiO2 particles as ceramic reinforcements is improved. The contribution of three parameters in enhancing mechanical properties has been identified. The research proved that there is a significant relationship between the Stirrer Design and the mechanical properties. The optimal stirrer design (D5) for mixing ceramic reinforcements with melted aluminum alloy has been chosen from different designs. Mechanical properties under the effect of the most important stirring parameters have been explained. Finally, adding silicon carbide instead of silica sand enhances the mechanical properties even further.