SEMISOLIDIFIED METAL PRODUCT MOLDING DIE STRUCTURE, METHOD OF MOLDING SEMISOLIDIFIED METAL PRODUCT, AND SEMISOLIDIFIED METAL PRODUCT

摘要

A semisolidified metal product molding die structure that attains assured molding of a product of complex configuration, such as a thin one with flange part, from a high-quality semisolidified metal at low cost; and a relevant molding method and semisolidified metal product. The semisolidified metal product molding die structure includes a fixed lower die designed to mount a semisolidified metal on its upper surface side and a movable upper die capable of pressurization descending behavior toward the fixed lower die. Further, the structure includes a side die disposed on the side portion of the fixed lower die and adapted to cooperate with the fixed lower die and the movable upper die so as to define a product cavity. The side die is provided on the fixed lower die in a vertically slidable fashion and is capable of pressurization ascending behavior with a force smaller than the descending pressurization force of the movable upper die. The compression by the upper die is started at the position of ascent of the side die, and the compression is maintained as-is while defining the peripheral side portion of the product. At the extreme descent site, final molding is performed.