|About this Abstract
||2018 TMS Annual Meeting & Exhibition
||CFD Modeling and Simulation in Materials Processing
||Numerical Modelling of Shrinkage and Hot Tears in High Pressure Die Casting of Al-Si-Cu Alloys
||Mikko Karkkainen, Tao Liu, Laurentiu Nastac, Luke Brewer, Vishweshwar Arvikar, Ilya Levin
|On-Site Speaker (Planned)
The effects of fluid flow and solidification characteristics on the formation of shrinkage and hot tears in HPDC of modified A383 alloy engine blocks was studied using a Computational Fluid Dynamics-Stress analysis approach. This modelling approach can predict cooling rates, temperature gradients, microstructure evolution, as well as shrinkage and thermal stresses during solidification. The applicability of the Niyama porosity criterion, originally applied to gravity castings, was evaluated for the HPDC process. The critical solidification and stress conditions required for the formation of hot tears in a modified A383 alloy were calculated and validated using experimental data provided by Nemak Alabama.
||Planned: None Selected