Optimisation of cast pistons made of Al–Si piston alloy

Abstract

In this paper, the advantages of applying software packages for the optimisation of the relevant technological parameters of casting and their implementation and control in production processes using the example of a cast piston are presented. The micro- and macrostructural characteristics of two different modes of solidification are given. In previous studies, possible phases in the microstructure of an aluminium alloy piston were identified, and their influences on the physical, chemical and mechanical properties are well known. The aim of this study is to obtain piston alloys with the desired mechanical and physical properties in the appropriate sections by combination of specific phases (share and distribution stages, the optimal size of primary silicon crystals, grain size, etc.) based on modern techniques.