| 摘要 |
PROBLEM TO BE SOLVED: To provide a method for simulating a die-casting with which rippled surface defect developed caused by solidification of molten material on the way of filling-up, can further surely be presumed. SOLUTION: This method is performed through the following processes, that is; a pre-treating process S100 containing a factor-making step S101 for dividing the shape of a mold into fine factors by positioning on the coordinate axes, and a factor-defining step S102 for defining the mold factors and cavity factors; a filling-up heat conduction analyzing process S200 containing a filling-up heat conduction analyzing step S201 for performing a filling-up range analysis to respective cavity factors and also, calculating the temperature in the molten material filling-up factors and a solid-phase ratio calculating step S202 for calculating the solid-phase ratio of the molten metal material; and an evaluating process S300 containing a solid-phase thickness calculating step S301 for calculating the solid-phase thickness as the thickness in the cavity factors which continuously becomes the solid-phase 1 from the inner wall surface in the mold factors at the completing time of the filling-up, and a surface-defect developing evaluating step S302 for presuming the development of the surface defect from the solid-phase thickness. COPYRIGHT: (C)2006,JPO&NCIPI
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