USING THE SPH METHOD FOR MODELING THE CRYSTALLIZATION PROCESS OF ALUMINUM ALLOYS

Tatiana Lysenko; Yuriy Morozov; Kyryll Kreitser; Evgeny Kozishkurt

doi:10.31435/rsglobal_ws/31032020/6981

Tatiana Lysenko Professor, Head of Department of Foundry Process Technologies and Management, Ukraine, Odessa, Odessa National Polytechnic University
Yuriy Morozov Associate Professor, Department of Higher Mathematics and Systems Modeling, Ukraine, Odessa, Odessa National Polytechnic University
Kyryll Kreitser Head of the research laboratory of special casting methods, Ukraine, Odessa, Odessa National Polytechnic University
Evgeny Kozishkurt Graduate student of Department of Foundry Process Technologies and Management, Ukraine, Odessa, Odessa National Polytechnic University

DOI: https://doi.org/10.31435/rsglobal_ws/31032020/6981

Keywords: Crystallization, SPH method, aluminum alloys, low-pressure casting

Abstract

The purpose of the study was to obtain castings with increased mechanical properties by low-pressure casting using excess pressure on the crystallized casting. The simulation of the process of filling and crystallization of prototypes using the SPH method was carried out. The studies were carried out on a modernized low-pressure injection molding machine model U8261. Prototypes were obtained from AK7ch alloy, special attention is paid to interfacial interaction and intensification of the heat transfer process due to the application of excess pressure. Based on the data obtained, it was found that during crystallization under excessive pressure there is a supercooling effect that reduces the casting solidification time. The use of the SPH method for modeling foundry processes has shown a high level of reliability and requires further development.

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