| 摘要 |
PROBLEM TO BE SOLVED: To provide a method and an apparatus for manufacturing an aluminum die-cast product with which the aluminum die-cast product having no cast defect and being sound and high quality can be manufactured by eliminating the development of shrinkage cavity or reducing it to the extremely small volume. SOLUTION: In the method for manufacturing the aluminum die-cast product, with which the molten metal 12 filled in a die 11 under pressure is subjected to the die-casting by pressurizing a portion easily developing the cast defect through the solidification and the shrinkage in the solidifying process with a locally pressurizing pin 16, the locally pressurizing pin 16 is made to follow based on the shifting of the interface of the solidification obtained with a precalculated solidified interface shifting speed of the molten metal and continued to push in till the time point of the completing of solidification. COPYRIGHT: (C)2008,JPO&INPIT
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