|About this Abstract
||Liquid Metal Processing & Casting Conference (LMPC 2019)
||Liquid Metal Processing & Casting
||Identification of Relevant Parameters for a Gap and Pressure Dependent Heat Transfer Model for Different Cooling Conditions in Gravity Die Casting
||Nino Wolff, Mahmoud Ahmadein, Björn Pustal, Andreas Bührig-Polaczek
|On-Site Speaker (Planned)
Local heat transfer in gravity die casting is of great importance for precision in terms of distortion, properties and quality of the castings due to localized variance in gap thickness or contact pressure. Experiments were carried out casting an A356 aluminum alloy in a steel mold at different initial temperatures, while the remaining process parameters were kept constant. During solidification, the temperature gradients at the interfaces between casting, mold and core are experimentally determined. The size of the air gap forming and the contact pressure acting on the core are measured as well. The experimental results are used to derive correlations related to the heat transfer coefficient at the interface, the thickness of the air gap and the contact pressure.
||Definite: At-meeting proceedings