| 摘要 |
PROBLEM TO BE SOLVED: To improve the precision in the heat transfer solidification of a casting, further to reduce a calculation load in a heat transfer solidification analysis, and to remarkably reduce analysis processing time. SOLUTION: The heat transfer solidification analysis method for the casting using an analysis model formed from a plurality of elements comprises: a stage (S210) where, using the thermal physical property value before the solidification of the molten metal of the casting, heat-conduction calculation between the mutually adjoining elements is practiced; stages (S220 to S230) where the cooling rate of the elements is calculated based on heat transfer calculation; a stage (S240) where the thermophysical value upon the solidification when the eutectic solidification of the casting is started and the thermophysical value after the solidification after the eutectic solidification of the casting is completed are calculated based on the calculated cooling rate; and stages (S260 to S280) where heat-transfer solidification analysis is practiced using the thermophysical value upon the solidification and the thermophysical value after the solidification calculated from the cooling rate. COPYRIGHT: (C)2008,JPO&INPIT
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