18-10-2014, 01:59 PM
Abstracts: Beyond simply identifying shrinkage, a porosity and filling problem, a numerical tool have been further developed to predict stresses, microstructures, defects and to model specific processes that can be used effectively by the foundry engineer early in the manufacturing process to save significant time and cost. More specifically this paper will address the following topics: ? ?Stress and deformation - what is the final shape of the cast component? What about fatigue life of the die? Can heat transfer variation due to gap formation between the casting and the die be taken into account? Can hot tears defects be predicted? ? ?Micro and gas porosity - what about the integrity of the part? What about the initial gas content in the liquid? ? ?As-cast mechanical properties - can local mechanical properties be predicted such as yield strength and hardness? ? Core blowing - can core defects be simulated? ? The author will discuss the above subjects and will show how international research projects and industrially leaded projects are essential to improve casting simulation capacities.