Flow Characteristics of Thin Plate for Rheo-Diecasting Process in Commercial A356 Alloys

J.G. Sim; J.Y. Moon; J.M. Kim; Chun Pyo Hong

doi:10.4028/www.scientific.net/SSP.116-117.509

Paper Titles

Evolution of Primary Particles Morphology during Secondary Cooling in SSR^® Process.
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Semi-Solid Casting of Al-7wt%Si Alloy in Expendable Molds
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Application of CSIR Rheocasting Technology for the Production of an Automotive Component
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Optimization of Heat Treatment Cycles for Automotive Parts Produced by Rheocasting Process
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Flow Characteristics of Thin Plate for Rheo-Diecasting Process in Commercial A356 Alloys
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Development of Aluminum-Lithium Alloys Processed by the Rheo Container Process
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Development of In-Ladle Direct Thermal Control (DTC) Rheocasting Process
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Analysis of the Age-Hardening T5 Treatment in a Al-7%Si-0.6%Mg-0.5%Cu Rheo-Cast Alloy
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The Effect of Stirring Current and Stirring Time on Microstructure and Mechanical Properties in Rheo Die Casting Process
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Flow Characteristics of Thin Plate for Rheo-Diecasting Process in Commercial A356 Alloys

Abstract:

Effects of ingate velocities and the morphology of α-particles on feeding behavior of thin plate were investigated in rheo-diecasting with H-NCM semisolid. In order to acquire various morphological characteristics, three kinds of semisolid, which had different casting parameters, were prepared. In this study, we found that the range of ingate velocity which could achieve laminar flow in thin plate was from 3.88m/s to 6.47m/s. In this range, however, the laminar flow length and the total flow length showed different results according to the characteristics of semisolid. Although the semisolid had high globularity the semisolid which had larger α-particles than 100 showed unstable feeding behavior in the range of stable ingate velocity.