Method of manufacturing a ceramic core for mobile blade, ceramic core and mobile blade
AssigneeSnecma
InventorsFranck Edmond Maurice Truelle, Alain Grandin, Maidin Mougamadou Aboudalcadar
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Abstract
A method of manufacturing a ceramic core for a blade including a lower part forming a core body, an upper part forming a squealer tip recess and a set of rods for holding the upper part and the lower part together, includes: coating the rods with a material that has a flash point below 1000° C.; positioning the rods in a mould; moulding the upper and lower parts by injecting ceramic; firing the ceramic core,
Claims12
A method of manufacturing a ceramic core for a blade comprising a lower part forming a core body, an upper part forming a recess and a set of rods contributing to holding the upper part with the lower part, the method comprising:
- coating the rods with a material with a flash point below a temperature threshold above which the expansion of the rod is greater than 1%;
- positioning the rods are positioned (POS) in a mould;
- moulding the upper and lower parts by a ceramic injection, the moulded upper and lower parts thus forming a single part in the mould and defining a core shape;
- firing the ceramic core.
Dependencies are inferred from the claim text.