Manufacturing Technology 2018, 18(3):439-443 | DOI: 10.21062/ujep/118.2018/a/1213-2489/MT/18/3/439

Changes in Eutectic Silumin Structure Depending on Gate Geometry and Its Effect on Mechanical Properties of Casting

Jan Majernik1, Stefan Gaspar2, Karel Gryc1, Ladislav Socha1
1 Institute of Technology and Business in České Budějovice, Okružní 517/10, 370 014 České Budějovice, Czech Republic
2 The Technical University of Košice, Faculty of Manufacturing Technologies with a seat in Prešov, Bayerova 1, 080 01 Prešov, Slovak Republic

The gate geometry has a direct influence on casting properties. It was proven that changes in gate dimension (height) influence the permanent deformation values and die cast porosity. The present paper discusses the issue whether changes in gate dimension may affect the structural composition of eutectic silumin. It presents results of the microsection analysis of samples taken from castings made with different gate dimensions to compare the phase α and phase β proportion forming eutecticum. Consequently, conclusions are drawn to examine the influence of gate dimensions on the cast eutectic structure as well as the structure correlation and the selected mechanical properties.

Keywords: high pressure die casting, mechanical properties, eutectic structure, gate

Published: June 1, 2018  Show citation

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Majernik J, Gaspar S, Gryc K, Socha L. Changes in Eutectic Silumin Structure Depending on Gate Geometry and Its Effect on Mechanical Properties of Casting. Manufacturing Technology. 2018;18(3):439-443. doi: 10.21062/ujep/118.2018/a/1213-2489/MT/18/3/439.
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