A Study in Superplastic Forming in Aluminium Metal Matrix Composites

This paper presents a review of Superplastic forming process in
Aluminium Metal Matrix Composites. The advantage of superplastic
forming is to develop the complex shapes which is mainly used in
Aerospace applications. The metal matrix composites are brittle in
nature because of the reinforcements present in the matrix. The
normal metal forming process cannot be adopted for metal matrix composites due to the brittle property. Superplstic forming the metals were heated one half of the melting temperature of the metal, due to that the composites have advantage in superplatic forming over other forming methods. Superplastic forming was formed through grain boundary siding mechanism. For the grain boundary sliding need optimum temperature and method to be followed. This paper broadly discus about the methods followed in the superplastic forming for composite.