Tool for manufacturing foundry ceramic cores for turbomachine vanes

摘要

The tool for manufacturing a ceramic foundry core (10) for turbomachine blade with a leading edge and a trailing edge, comprises first and second imprints (530, 540) of the core movable in a direction F'1 with respect to other direction F'2 between a molding position and an unmolding position, sub parts movable with respect to the imprints except on the low thickness part, and mechanical ejectors (570). The core comprises a thick side part of the leading edge and a part (10A1) of low thickness on the side of the trailing edge. The mechanical ejectors are fixed on the imprints. The tool for manufacturing a ceramic foundry core (10) for turbomachine blade with a leading edge and a trailing edge, comprises first and second imprints (530, 540) of the core movable in a direction F'1 with respect to other direction F'2 between a molding position and an unmolding position, sub parts movable with respect to the imprints except on the low thickness part, and mechanical ejectors (570). The core comprises a thick side part of the leading edge and a part (10A1) of low thickness on the side of the trailing edge. The mechanical ejectors are fixed on the imprints such that the low thickness part is unmolded according to a main opening direction and one of the two imprints. Two matrices are horizontally movable between opened and closed positions. The imprints comprise decorations (510) for forming cavities in the core. An independent claim is included for a process for manufacturing a foundry core.