Tool for manufacturing ceramic casting cores for turbomachine blades

A tool for manufacturing a casting core, for a turbomachine blade with a pressure side, a suction side, a leading edge and a trailing edge, the core comprising a thick part on the leading edge side and a thin part on the trailing edge side, the tool comprising:

• first and second dies of the core that are moveable in a direction with respect to the each other between a molding position and a demolding position;
• sub-components that are moveable relative to the dies;
• and
• mechanical ejectors which are provided on one of the first or second dies,
• wherein the dies on said thin part are free of a movable sub-component,
• wherein the thin part is demolded along a main direction of opening of the first and second dies,
• wherein said thin part is substantially perpendicular to the main direction of opening of the first and second dies,
• wherein the dies include decorations for the formation of cavities in the core, and
• wherein a main axis of the decorations in the dies corresponding to the trailing edge extending from the pressure side on the first die to the suction side on the second die is substantially parallel to the main direction of opening of the first and second dies.