2002 FEMに基づくマグネシウム合金の成形における流動解析(OS2 CAD/CAM/CAE技術)

概要

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Recently, magnesium alloy is widely used for the cases of electric appliances because of it's light weight, mechanical property, and recyclability. The thin cases of magnesium alloy are produced by thixomolding. However, since the processes have not been analyzed sufficiently, the thixomolding is practically applied in trial and error. In this study, injection flow of magnesium alloy on thixomolding is analyzed by FEM. In the analysis, properties of magnesium alloy: viscosity, heat conductivity, specific heat, and density are given. The viscosity is derived from the approximated equations by giving semi-solid rate, temperature and share rate. The case of the portable telephone is selected as the analyzing model. The flow analysis results of magnesium alloy injection were obtained under changing the conditions injection temperature, injection speed, temperature of the die and mold, and location of injection gates. Instructions to design the optimum die and mold are given.
一般社団法人日本機械学会の論文
2001-03-22