Abstract
A two-dimensional finite-difference model has been developed to simulate the heat flow in the ingot, die and ram during squeeze casting. The effects of processing conditions on the solidification time and maximum die temperature during squeeze casting of A356 (Al-7 wt% Si-0.3 wt% Mg) has been investigated using this model. Solidification and cooling rates during squeeze casting are increased by decreasing the die preheat and melt pouring temperatures, and by increasing the ingot/die heat transfer coefficient with a high pressure. The solidification and cooling behaviour of A356/10 vol.% SiCp composite (A356 reinforced with silicon carbide particles) is very similar to that of monolithic A356 under similar squeeze casting conditions.
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