Manufacture of forged components

摘要

A method and apparatus for centrifugal casting a blank 8 separable into a plurality of preforms 10 having a required configuration for forging to a finished component. In one arrangement (Figure 2), individual moulds 7 are symmetrically located around the axis of rotation of a casting table 3 and have mould cavities that are filled by molten alloy under the centrifugal force created by rapidly rotating the table 3. In an alternative arrangement (Figure 5), a cylindrical mould 11 is centred on the axis of rotation and the centrifugal force created by rapidly rotating the table 3 causes the molten alloy to fill cavities in the wall of the mould 11. Centrifugal forces of at least 20g may be employed.