Manufacturing process for blades of a turbo machine and blades for a turbo machine
AssigneeROLLS-ROYCE plc
InventorGraham J. BING
Life of this patent
Estimating the term…
Abstract
A manufacturing process for blades of a turbomachine, e.g. a gas turbine engine for an aircraft. In the process: a) a ceramic core piece that comprises at least two ceramic core elements and a clamping part that connects the ceramic core elements, is positioned in a wax forming device, subsequently; b) a molten wax material is applied to the outside of the ceramic core piece in the wax forming device and the wax is allowed to solidify, and subsequently; c) at least two turbomachine blades are cast using a crystallographically-oriented metal casting process and the wax and the ceramic core piece are removed.
Claims16
A process for manufacturing turbomachine blades (5), wherein:
- a) a ceramic core piece that comprises at least two ceramic core elements and a clamping part that connects the ceramic core elements, is positioned in a wax forming device, subsequently;
- b) a molten wax material is applied to the outside of the ceramic core piece in the wax forming device and the wax is allowed to solidify, and subsequently;
- c) at least two turbomachine blades are cast using a crystallographically-oriented metal casting process and the wax and the ceramic core piece are removed.
Dependencies are inferred from the claim text.