![]() ![]() Both in which increases costs for the parts. It carries additional material to be machined and as a result, also weighs more.It yields a lower degree of accuracy and, thus, is not good for precision parts with predetermined size and weight.However, sand casting also has some disadvantages: Works for both ferrous and non-ferrous materials.The ability to fabricate very large components.The primary advantage of sand casting is lower production costs. It is commonly used for some automotive parts. Sand casting can be used for cast iron, copper alloy, and aluminum alloy, and steel. Sand can be shaped by hand or by machine. The sand used is a blend of silica grains with five to 20% clay or bentonite and two to eight percent water. This forms a cavity in the form of the component to be cast. A pattern is used, around which the sand is compacted. Sand casting is characterized by using sand as the mold material. However, the nature of the mold is very different. Both of these methods work by pouring the molten metal into a three-dimensional mold. Two common methods of casting are sand casting and permanent mold or “chill” casting. Deciding on a metal casting process can be complicated, and is impacted by a number of things such as budget, volume, and the type of object being cast. ![]()
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