Centrifugal Casting Process Review

Centrifugal Casting Process Review

Centrifugal casting is both gravity- and pressure-independent since it creates its own force feed using a temporary sand mold held in a spinning chamber at up to 90 g.

The Centrifugal Casting process consists of a metal or graphite mold that is rotated in the horizonal or vertical plane during solidification of the casting. Centrifugal force shapes and feeds the molten metal into the designed crevices and details of the mold. The centrifugal force improves both homogeneity and accuracy of the casting.

This method is ideally suited to the casting of cylindrical shapes, but the outer shape may be modified with the use of special techniques.

Lead time varies with the application. Semi- and true-centrifugal processing permit 30-50 pieces/hr-mold to be produced, with a practical limit for batch processing of approximately 9000 kg total mass with a typical per-item limit of 2.3-4.5 kg.

Advantages

Rapid production rate.
Suitable for Ferrous / Non-ferrous parts.
Good soundness and cleanliness of castings.
Ability to produce extremely large cylindrical parts.

Disadvantages

Limitations on shape of castings. Normally restricted to the production of cylindrical geometric shapes.