Investigation of the pressure and heat treatment effect on the ICE piston blanks mechanical and structural properties from high-strength aluminum alloy B95

Abstract

The features of the production of internal combustion engine pistons are analysed. On the basis of the analysis, the expediency of developing a new, more improved technology for the production of piston blanks was revealed. The choice was made in favour of the injection molding process. It is shown that the high quality of workpieces with minimal material and energy costs can be ensured by imposing high pressure on the metal prior to crystallization. The scientific and technical literature is analysed, where attention is drawn to the relevance of the processes of processing crystallizing metal by pressure using hydraulic press equipment. However, it can be seen from the available sources that the possibility of pressure treatment of liquid metal prior to the onset of crystallization remains unexplored. Investigations of the mechanical properties of the resulting blanks of internal combustion engine pistons have been carried out, and the microstructures of the alloy obtained under different crimping modes have been studied. As a result of the research, the most optimal technological modes of pressure application were determined. The process of applying pressure to the crystallizing metal has been developed.