Patent ID: 9486853
Filing Date: 2016-11-08
CPC Classification: B22C,B22D,F01D,F05D,Y02T

Claim Text:
1. A casting mold assembly comprising: an airfoil defining section including an outer mold wall, and a direct-shelled inner mold wall disposed within a forward chordwise portion of the airfoil defining section, the direct-shelled inner mold wall including an aft end having an external radius measuring more than about 0.075 in. (1.9 mm); and a casting core secured within an aft chordwise portion of the airfoil defining section, the casting core including an aft end with an external radius measuring less than about 0.075 in. (1.9 mm); wherein the casting core is disposed aft of the aft end of the direct-shelled inner mold wall, defining a rib portion of the airfoil defining section aft of a midchord position, the rib mold portion extending generally radially through the casting mold between the direct-shelled inner mold wall and the casting core.