US 11,913,356 B2
Method of making a single-crystal turbine blade
Chao Zhang, Vaughan (CA); Robert Huszar, Saint-Bruno-de-Montarville (CA); and Othmane Leghzaouni, Brossard (CA)
Assigned to PRATT & WHITNEY CANADA CORP., Longueuil (CA)
Filed by PRATT & WHITNEY CANADA CORP., Longueuil (CA)
Filed on Dec. 8, 2021, as Appl. No. 17/545,415.
Application 17/545,415 is a continuation of application No. 16/515,383, filed on Jul. 18, 2019, granted, now 11,220,919.
Prior Publication US 2022/0098990 A1, Mar. 31, 2022
Int. Cl. F01D 5/28 (2006.01); C30B 11/02 (2006.01); C30B 29/52 (2006.01); F01D 5/14 (2006.01); C30B 11/00 (2006.01); C30B 11/14 (2006.01)
CPC F01D 5/28 (2013.01) [C30B 11/02 (2013.01); C30B 29/52 (2013.01); F01D 5/147 (2013.01); F05D 2230/50 (2013.01); F05D 2250/232 (2013.01); F05D 2300/607 (2013.01)] 9 Claims
OG exemplary drawing
 
1. A method of making a single-crystal turbine blade with a material having a face centered cubic crystallographic structure, the method comprising:
during manufacturing of the single-crystal turbine blade:
controlling a secondary crystallographic orientation of the material based on a parameter of a root fillet between an airfoil of the single-crystal turbine blade and a platform of the single-crystal turbine blade;
controlling a primary crystallographic orientation of the material to be at 30 degrees from an airfoil stacking line of the single-crystal turbine blade; and
controlling the secondary crystallographic orientation of the material to be perpendicular to a reference plane that is perpendicular to an edge of the root fillet, the edge of the root fillet being closer to the airfoil than to the platform.