Numerical Simulation of Rheo-Diecasting Mould Filling Process of Semisolid Magnesium Alloys

Hong Yan; Tao Wang; Ming Fu Fu

doi:10.4028/www.scientific.net/MSF.575-578.32

Paper Titles

Experimental Research of Elevated Temperature Creep and Stress Relaxation during Continuous Straightening
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Derivation and Application for Time Step Model in Simulation of Solidification Process
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The Computer Solidification Simulation of Oceangoing Freighter Rudder Horn
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Microstructures of Rapidly Solidified Hypereutectic Al-Si Alloy with Low-Titanium Content
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Numerical Simulation of Rheo-Diecasting Mould Filling Process of Semisolid Magnesium Alloys
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Numerical Simulation of Induction Heating Process of Continuous Casting Slab
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Application of Level Set Method to the Simulation of Liquid-Gas Two-Phase Flow during Mold Filling
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Simulation of Gas-Solid Two-Phase Flow to Process of Filling the Foam Mould
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Gate Location Optimization in Injection Molding Based on Empirical Search Method
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Numerical Simulation of Rheo-Diecasting Mould Filling Process of Semisolid Magnesium Alloys

Abstract:

Base on the coupled three-dimensional model of flow temperature and apparent viscosity on semisolid materials, the mould filling processes of liquid and semisolid magnesium alloys have been analyzed. The simulation results showed that the semisolid mould filling with the characteristic of pseudo-plasticity and Bingham type is steady and the air entrapment is much smaller than that of liquid die casting. Therefore, the semisolid die casting can prevent from those defects produced by the traditional die casting, which offer a new technology for lower interior defects and better quality.