Cooled turbine blade cast tip recess

Details Cooled turbine blade cast tip recess Cooled turbine blade cast tip recess

2007-01-05

2009-11-03

Lin, Kuang (Department: 1793)

Metal founding

Process

Shaping a forming surface

C164S369000

Reexamination Certificate

active

07610946

ABSTRACT:
A core assembly including two cores is used to manufacture a blade. The first core has an outer surface shaped to complement the tip wall bottom surface. The second core has a tip surface, a side surface, and a protrusion or a depression. The tip surface is shaped to complement at least a portion of the tip wall top surface and is configured to be disposed proximate the first core. The side surface is shaped to complement at least a portion of the side wall, and the protrusion extends from the second core side surface to contact at least a portion of the ceramic mold inner surface. In embodiments employing a depression, the depression is formed in the side surface.

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patent: 2004/0112564 (2004-06-01), Devine et al.

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