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Sand Casting Process

June 22, 2017

In sand casting, the molten metal is poured into the cavity, which has a pattern made of wood or metal. The patterns is a exact replica of the shape that the metal is to casted in. Molten metal in introduced into the cavity in the shape of the casting to be made. When the cast solidifies the mold is broken to remove the castings. Since, the initial method of wet and baked sand mold were expensive, new method of sand mixing have been invented where the use of chemical and adhesives are used to bind the aggregate.

 

The basic material which is the sand or the clay is usually taken from the banks or the lakes. Now a days sand molds are made that can be used for automated casting processes. A variety of patterns are used like the match plate and cope and drag pattern for enabling in giving the required shape to the molten metals. The cuts and cavities are made by making use of the cores.

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