Patent ID: 11938575
Assignee: ROLLS-ROYCE PLC
Field: Materials, metallurgy (Chemistry)
Classification: CPC B | IPC B

Claim 0:
1. A process for manufacturing turbomachine blades, the process comprising:
a) positioning in a wax forming device a ceramic core piece that comprises at least two ceramic core elements and a clamping part that connects the ceramic core elements, subsequently;
b) applying a molten wax material to an outside of the ceramic core piece in the wax forming device and allowing the wax to solidify, subsequently;
c) casting at least two turbomachine blades using a crystallographically-oriented metal casting process and removing the wax and the ceramic core piece to form a blade cast piece, and subsequently;
d) cutting the blade cast piece to separate the at least two turbomachine blades from each other.