To suppress impregnation of a molten metal in the main body portion of a porous member, and to avoid exposure of a supporting part provided so as to locate the main body portion at the center of a cast member on the surface of the cast member as being porous in the cast member with the porous member cast-in.
The manufacturing method of the cast member includes an installation step of installing a porous member having a main body portion 21 and a supporting part 22 extending outwardly from the main body part 21 in a mold so that the supporting part 22 is abutted on the cavity surface of the mold and the main body portion 21 is not abutted on the cavity surface of the mold, and a molten metal pouring step of pouring the molten metal into the mold, and a pressurizing step of pressurizing the surface of the main body portion 21 of the porous member to reduce the volume ratio of pores on the surface is provided before the installation step.
| JPS5841664 | PRODUCTION OF PISTON |
| JP2024039255 | Manufacturing method of die casting products |
| JP2001293551 | METHOD FOR PRODUCING AMORPHOUS ALLOY-MADE MEMBER |
ODA NOBUYUKI
NANBA SATOSHI
TSUNETOMO ATSUSHI
KIMURA TAKAHIRO
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