| 摘要 |
PURPOSE:To easily and economically manufacture a metal-base composite material having high wear resistance, by infiltrating a molten matrix metal into a preformed body consisting of a fibrous or granular principal component and a whisker-shaped subordinate component in a molding die so as to apply pressure casting. CONSTITUTION:In a method for manufacturing a metal-base composite material in which fine reinforcement is distributed into a matrix-metal material, a preformed body, as the above-mentioned reinforcement, is manufactured of a fibrous or granular principal component such as Al2O3, etc., and a whisker- shaped subordinate component such as SiC, etc. This preformed body is inserted into a molding die, into which a molten matrix metal such as Al, Al alloy, etc., is poured. Subsequently, by using the above-mentioned molding die as a mold, the matrix metal is infiltrated into the above preformed body to undergo pressure casting. By this method, the metal-base composite material excellent in mechanical properties, particularly in wear resistance, can be obtained inexpensively with superior workability.
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