Abstract
Sheets of light-weight alloys, such as aluminum alloys and magnesium alloys, are expected to be used more for interior or exterior panels of passenger cars. Among various manufacturing technologies for the sheets, twin-roll casting has been known to be efficient and economical since it can produce sheets from melt directly. However, the phenomenon occurring in the process is so complicated that various numerical techniques have been explored to analyze it. In the present investigation, the rigid-viscoplastic finite-element method was applied to the analysis of a vertical type of twin-roll casting for production of AA3003 and Mg-AZ31 sheets. As a result, details of melt flow, temperature distribution, solidification, plastic deformation, roll torque and roll-separating force were obtained from the analysis.
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