Composite molds, which are made of two or more different materials (such as sand, graphite, and…

Composite
molds, which are made of two or more different materials (such as sand,
graphite, and metal) combining the advantages of each material. These molds
have a permanent and an expendable portion and are used in various casting
processes to improve mold strength, control the cooling rates, and optimize the
overall economics of the casting process.

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