Casting core, useful for fabricating blade of high and low pressure turbomachine, comprises first elongated core member for forming internal cavity, and second core member for forming cavity of bath tub in extension of first member

摘要

The elongated casting core comprises a first elongated core member (101) for forming an internal cavity, and a second core member (104) for forming a cavity of bath tub in the extension of the first core member. The first and second members form a monoblock assembly. A longitudinal wall of the second core member has a recess, with respect to a longitudinal wall of the first core member, placed on a portion of a periphery of the core. The recess is formed by a portion with a transverse wall between the longitudinal walls of the first and second core members. The elongated casting core comprises a first elongated core member (101) for forming an internal cavity, and a second core member (104) for forming a cavity of bath tub in the extension of the first core member. The first and second members form a monoblock assembly. A longitudinal wall of the second core member has a recess, with respect to a longitudinal wall of the first core member, placed on a portion of a periphery of the core. The recess is formed by a portion with a transverse wall between the longitudinal walls of the first and second core members. The first core member comprises an elongated portion of a leading edge, and an elongated portion of a trailing edge. The elongated portion of the leading edge and the elongated portion of the trailing edge are separated by a longitudinal recess (126, 127, 128, 129). A first recess (105) is transversely arranged between the first and second core members, and is arranged between the elongated portion of the leading edge and the elongated portion of the trailing edge. An independent claim is included for a process for manufacturing a turbomachine blade.