Patent ID: 8500411

Claim:
A turbine airfoil, comprising: a generally elongated airfoil formed from an outer wall, and having a leading edge, a trailing edge, a pressure side, a suction side, a root at a first end of the airfoil and a tip at a second end opposite to the first end; wherein the outer wall includes at least one groove in an outer surface of the outer wall, wherein the at least one groove in the outer wall has a depth that represents a desired outer surface and wall thickness of the outer wall; wherein the at least one groove comprises a plurality of grooves in the outer surface of the outer wall; wherein at least a portion of the plurality of grooves in the outer surface of the outer wall are aligned; wherein at least a portion of the plurality of grooves in the outer surface of the outer wall are aligned in a first direction and at least a portion of the plurality of grooves in the outer surface of the outer wall are aligned in a second direction that differs from the first direction; and wherein the portion of the plurality of grooves aligned in the first direction are generally orthogonal to the plurality of grooves aligned in the second direction.