Blades, casting cores, and methods
AssigneeUnited Technologies Corporation
InventorFrancisco J. Cunha
Life of this patent
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Abstract
An article includes a blade casting core combination. The combination includes a ceramic feedcore and a metallic core. The ceramic feedcore has: a root end; a tip end; a leading end; a trailing end; a first side; a second side; and a plurality of legs extending between the root and tip ends and arrayed between the leading and trailing ends. The metallic core has: a first face; a second face; a first portion extending from the feedcore trailing end; and a second portion extending from the tip end. The article may be a pattern where the core is embedded in a wax or may be a shell formed from such a pattern. The article may be used in a method for forming the resultant blade.
Claims9
An article comprising:
- a blade casting core combination comprising:
- a ceramic feedcore having:
- a root end;
- a tip end;
- a leading end;
- a trailing end;
- a first side;
- a second side;
- and
- a plurality of legs extending between the root and tip ends and arrayed between the leading and trailing ends;
- and
- a monolithic metallic core having:
- a first face;
- a second face;
- a first portion extending from the feedcore trailing end;
- and
- a second portion extending from the tip end.
A blade casting core assembly comprising:
- a ceramic feedcore having:
- a root end;
- a tip end;
- a leading end;
- a trailing end;
- a first side;
- a second side;
- and
- a monolithic metallic core having an L-shaped planform with:
- a leg at least partially along the feedcore trailing end;
- and
- a foot at least partially along the feedcore tip end.
Dependencies are inferred from the claim text.