Method for production of precision castings by centrifugal casting

A method for production of precision castings by centrifugal casting, comprising the following steps:

• a) providing a centrifugal casting device having a rotor being rotatable around an axis, and at least one crucible being accommodated in the rotor and at least one mold being associated with said crucible and being accommodated in a first radial distance from the axis,
• b) pouring a metal melt into the crucible, the metal melt being a titanium alloy containing Ti and Al as main constituents,
• c) rotating the rotor and thereby forcing the melt by means of centrifugal forces from the crucible into the mold,
• d) exerting a pressure on the melt being forced into the mold until the temperature of the solidifying melt has reached a predetermined cooling-temperature in a range of 1300° to 800° C., wherein the amount of the pressure corresponds to the centrifugal force acting on the melt as soon as the mold is completely filled times a factor of 1.0 to 5.0, wherein the pressure is increased for a predetermined period after the mold has been completely filled, and
• e) relieving the pressure when the temperature of the solidifying melt is smaller than said predetermined cooling-temperature.