Patent ID: 9249491
Filing Date: 2016-02-02
CPC Classification: B23P,B24C,C23C,F01D,F05D,Y02T,Y10T

Claim Text:
1. A method of fabricating a component comprising a substrate that has at least one interior space, the method comprising forming one or more grooves in the component, wherein each groove has a base and extends at least partially along an outer surface of the substrate and narrows at an opening thereof, such that each groove comprises a re-entrant shaped groove, wherein the base of a respective groove is rounded to define an overall teardrop shaped groove, and wherein a cross-sectional area A of each groove is in a range of about 2 to about 3 times an area R=W*D, where W is a width of the opening of the re-entrant-shaped groove, and D is a depth of the re-entrant-shaped groove.