Optimization of squeeze casting parameters on hybrid aluminium composites using Taguchi method

Abstract

The squeeze casting of aluminum composites is a rapidly developing process that offers the potential for
widespread utilization in automobile and aerospace industries, in squeeze casting process metal is solidified under
mechanically applied pressure. The near net shaped components can be produced by squeeze casting. It has been shown
that squeeze casting enhances the mechanical properties of cast metals. In the present work, the elemental SiC and Al2O3
powders are mixed with aluminum molten metal to produce the Al-SiC- Al2O3 hybrid composites. Optimization is one
of the techniques used in manufacturing sectors to get best manufacturing conditions. Experiments were conducted based
on L9 orthogonal array by varying the input parameters. Mechanical properties such as ultimate tensile strength, hardness
and wear rate were taken as output responses. Experiment results reveal that squeeze pressure is the most influencing
factor on mechanical properties .Good agreement between confirmatory and experimental results has been found from
confirmatory tests.