It is also known as gravity die casting because of the fact that the molten metal enters the mould cavity under the action of gravity.
It uses metallic mould called die.
Because of stable nature of mould, it can be used to produce large number of castings with the same mould.
It can be used to produce dimensionally accurate castings with close dimensional tolerances.
The surface finish of the casting produced is very good.
It is useful for small size castings.
It is commonly employed for aluminium castings.
The rate of production is high.
The cast part is free from casting defects such as porosity, dirt and shrinkage.
SHELL-MOULD CASTING
It is a variation of sand-mould casting. ...
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