Ceramic core for the fabrication of a hollow turbine blade by the lost wax casting process, including the provision of the bath at the top of the blade during casting

摘要

A ceramic core for the fabrication of a turbine blade by the lost wax process, with cooling and bath cavities, includes a main core (10). The main core comprises an element (10B) constituting the bath and an element (10SB) constituting at least one cavity beneath the bath. The two elements form between each other a space (13) constituting at least a part of the wall of the bottom of the bath. An independent claim is also included for the fabrication of this ceramic core.