Investment casting pattern manufacture
AssigneeUnited Technologies Corporation
InventorKeith A. Santeler
Life of this patent
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Abstract
At least one feed core and at least one wall cooling core are assembled with a number of elements of a die for forming a cooled turbine engine element investment casting pattern. A sacrificial material is molded in the die. The sacrificial material is removed from the die. The removing includes extracting a first of the die elements from a compartment in a second of the die elements before disengaging the second die element from the sacrificial material. The first element includes a compartment receiving an outlet end portion of a first of the wall cooling cores in the assembly and disengages therefrom in the extraction.
Claims15
A method for manufacturing a cooled turbine engine element investment casting pattern comprising:
- assembling at least one feed core and at least one wall cooling core with a plurality of elements of a die;
- molding a sacrificial material in the die;
- and
- removing the sacrificial material from the die, wherein the removing comprises:
- extracting a first of the die elements from a compartment in a second of the die elements before disengaging the second element from the sacrificial material, the first element including a compartment receiving an outlet end portion of a first of the wall cooling cores in the assembling and disengaging therefrom in the extracting, the extracting of the first die element releasing a backlocking between the first wall cooling core and the second element.
Dependencies are inferred from the claim text.