Blades, casting cores, and methods

Details Blades, casting cores, and methods Blades, casting cores, and methods

2011-01-11

2011-01-11

Lin, Kuang (Department: 1793)

Metal founding

Means to shape metallic material

United particle type shaping surface

C164S516000

Reexamination Certificate

active

07866370

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.

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European Office Action for EP08250311.1, dated Nov. 2, 2009.

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