Method for manufacturing cast ceramic cores for turbomachine...

Details Method for manufacturing cast ceramic cores for turbomachine... Method for manufacturing cast ceramic cores for turbomachine...

2005-11-25

2008-12-02

Kerns, Kevin P (Department: 1793)

Metal founding

Process

Shaping a forming surface

C164S017000, C164S369000

Reexamination Certificate

active

07458411

ABSTRACT:
A method of manufacturing a cast core with at least one recess, corresponding to a partition of a turbomachine blade, includes the steps of shaping, in a mold, a mixture containing a ceramic particles filler and an organic binder; forming a core rough casting without the recess in the mold; extracting the core rough casting from the mold; machining the recess in the core rough casting thereby forming a machined core with the recess; removing the organic binder from the machined core; and heat treating the machined core to consolidate the machined core. The step of machining the recess is performed before the step of heat treating the machined core.

REFERENCES:
patent: 5465780 (1995-11-01), Muntner et al.
patent: 6286581 (2001-09-01), Gustafson
patent: 101 33 325 A 1 (2002-08-01), None
patent: 6-335816 (1994-12-01), None
patent: WO 97/02914 (1997-01-01), None
“Master Catalog”,,Kennametal Hertel, XP-002332315, 2001, 3 Pages.

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