| 摘要 |
A composite mold includes a porous mold base and a lubricant filled in the porous mold base. The porous mold base includes at least a first portion, which includes a sintered material formed by sintering noble metal particles and tungsten carbide particles. A molding surface of the porous mold base is defined on the first portion. Preferably, the porous mold base further includes a second portion. The second portion of the mold base is integrally formed with the first portion, and is located distal from the molding surface. The second portion of the mold base is made of a sintered material formed by sintering tungsten carbide particles. Alternatively, the second portion, like the first portion, is made of a sintered material formed by sintering noble metal particles and tungsten carbide particles. A method for making a composite mold is also provided.
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