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Casting is basically the manufacturing process through which a liquid material is emptied into a mold that includes a hollow opening of the desired art or shape and is then allowed to harden. This hardened casting is then removed and broken out in order to complete the process. Apart from using sand as the main mold material there is a metal that is used as the mold.
The casting molds are actually pre heated to nearly 392 degree Fahrenheit before the metal is pored in the cavity. The design of cavity for these casting molds does not chase the same principle for shrinkage like in the sand casting molds. This is because of the fact that the metal casting molds heat up and enlarge during the pouring process and so the cavity does not need to be expanded like in the sand castings.
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