| 摘要 |
PROBLEM TO BE SOLVED: To provide an evaporative pattern casting method so that a cast product goes in a targeted size or permissible error range, and a method for manufacturing a metallic mold for forming the foamed pattern. SOLUTION: A method for casting the cast product by the evaporative pattern casting method is contained of: (a) a casting simulation process for cast product, performing the simulation of the casting for cast product with the evaporative pattern casting method by inputting data related to three-dimensional size of the foamed product pattern corresponding to the targeted size, material data for foamed product and data of a gating system and a molten metal pouring method, into a computer, containing the simulations for molten metal flowing, the solidification of the molten metal and the deformation of the cast product with the solidification; (b) a process for deciding a last three-dimensional size of the foamed product pattern while considering the deformation of the cast product in the above casting simulation process for cast product and a contraction rule of the relation between the cast product and the foamed product pattern; (c) a process for manufacturing the foamed product pattern having the final three-dimensional size; and (d) a process for casting the cast product with the evaporative pattern casting method by using the foamed product pattern manufactured with the above method. COPYRIGHT: (C)2007,JPO&INPIT
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