US 12,325,065 B2
Method for manufacturing metal matrix composite material
Yoshio Takagi, Fuji (JP); Hitoshi Kitamura, Fuji (JP); and Shogo Ochiai, Fuji (JP)
Assigned to ADVANCED COMPOSITE CORPORATION, Fuji (JP)
Appl. No. 18/557,983
Filed by ADVANCED COMPOSITE CORPORATION, Fuji (JP)
PCT Filed Dec. 23, 2022, PCT No. PCT/JP2022/047659
§ 371(c)(1), (2) Date Oct. 30, 2023,
PCT Pub. No. WO2023/136101, PCT Pub. Date Jul. 20, 2023.
Claims priority of application No. 2022-004377 (JP), filed on Jan. 14, 2022.
Prior Publication US 2024/0216987 A1, Jul. 4, 2024
Int. Cl. B22D 19/02 (2006.01); B22D 18/02 (2006.01); B22D 19/00 (2006.01); B22D 21/04 (2006.01)
CPC B22D 19/02 (2013.01) [B22D 18/02 (2013.01); B22D 19/0081 (2013.01); B22D 21/04 (2013.01)] 6 Claims
OG exemplary drawing
 
1. A method for producing a metal matrix composite having a near-net shape, the method comprising:
molding a reinforcing material-molded or filled body having a near-net shape of the metal matrix composite and pores, in a metal mold having a cavity therein that corresponds to the near-net shape of the metal matrix composite, with a reinforcing material, the reinforcing material comprising at least one material selected from the group consisting of ceramic particles, graphite particles, and metal particles, thereby forming a combined-use metal mold including the reinforcing material-molded or filled body;
pre-heating the combined-use metal mold including the reinforcing material-molded or filled body;
placing the pre-heated combined-use metal mold including the reinforcing material-molded or filled body in an outer shell metal mold; and
casting a matrix material and the reinforcing material by filling a molten matrix material into the pores of the reinforcing material-molded or filled body that is placed in the combined-use metal mold having a near-net shape and being placed in the outer shell metal mold, thereby obtaining the metal matrix composite as a resulting casted product, wherein the cavity of the mold having the near-net shape has a substantially same shape as a shape of the casted product, the molten matrix material being a pure metal or an alloy and being different from the reinforcing material, wherein the pure metal is aluminum and the alloy is an aluminum alloy,
wherein the metal mold having a near-net shape used in the molding of the reinforcing material-molded or filled body is further used as the combined-use metal mold, in the pre-heating, the placing, and the casting in the method.