Role of interfaces in superplastic flow

Abstract

The forming route ensures minimal wastage of material and considerable energy saving, but forming machines have poor efficiency when the operating conditions are not optimised and then significant losses could be present in the deformation processes. Based on many experimental investigations on the forming machines, interconnected with forming process, the approaches to minimise the losses have been identified. The major trends in the concept of conservation of energy in forming are systematically analysed in terms of the efficiency of processes, the temperature of working and the force needed in a process.