Investment casting pattern manufacture

Details Investment casting pattern manufacture Investment casting pattern manufacture

2007-07-31

2008-10-21

Lin, Kuang (Department: 1793)

Metal founding

Means to shape metallic material

United particle type shaping surface

C164S361000

Reexamination Certificate

active

07438118

ABSTRACT:
At least one feedcore 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.

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patent: 6637500 (2003-10-01), Shah et al.
patent: 6827126 (2004-12-01), Niimi et al.
patent: 6929054 (2005-08-01), Beals et al.
patent: 7172012 (2007-02-01), Memmen
patent: 7216689 (2007-05-01), Verner et al.

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