Numerical Simulation of Cast-rolling Process for Strip of Fiber Reinforced Aluminum Matrix Composites
Based on the preparation methods of fiber reinforced aluminum matrix composites(FRAMC), a cast-rolling controlled forming method for continuous FRAMC strip was put forward. And an analysis model of composite forming continuous fiber with liquid aluminum was established, the effect of the flow velocity of liquid aluminum and the heat transfer coefficient between liquid aluminum and cast-rolling roll on flow field,temperature field and solidification field of liquid aluminum in the cast-rolling process were obtained. The results show that the temperature of the liquid aluminum decreases rapidly below the solid phase temperature in the cast-rolling zone, and the flow velocity becomes small; with the increase of casting speed, the speed changes more violently, the solidification rate of molten aluminum becomes small, and both the temperature and the liquid phase ratio values increase gradually at the same point; with the increase of heat transfer coefficient, the temperature is lower, the solidification rate of molten aluminum becomes faster, while the temperature value and the liquid phase ratio decrease at the same point.