US 12,442,634 B2
Visual and/or dimensional tip inspection systems and methods
Keith R. Boislard, Colchester, CT (US); Ozgur Erdinc, Mansfield, CT (US); Kathryn S. Conety, East Haddam, CT (US); Iuliana Cernatescu, Glastonbury, CT (US); and Garrett Kernozicky, Mansfield, CT (US)
Assigned to RTX CORPORATION, Farmington, CT (US)
Filed by RAYTHEON TECHNOLOGIES CORPORATION, Farmington, CT (US)
Filed on May 13, 2022, as Appl. No. 17/744,538.
Prior Publication US 2023/0366673 A1, Nov. 16, 2023
This patent is subject to a terminal disclaimer.
Int. Cl. G01B 11/06 (2006.01); F01D 5/20 (2006.01); F01D 5/28 (2006.01); F01D 11/12 (2006.01); G01B 11/30 (2006.01)
CPC G01B 11/0616 (2013.01) [F01D 5/20 (2013.01); F01D 5/288 (2013.01); F01D 11/122 (2013.01); G01B 11/30 (2013.01); F05D 2260/80 (2013.01)] 12 Claims
OG exemplary drawing
 
1. A method, comprising:
scanning a tip of an airfoil of a bladed rotor with a handheld dimensional measurement scanner, the tip including a coating disposed thereon, the coating comprising a metal plating and a plurality of abrasive protrusions, each abrasive protrusion in the plurality of abrasive protrusions extending from the metal plating;
determining whether the abrasive protrusions of the coating of the tip of the airfoil maintain a surface roughness of the coating above a threshold surface roughness based on scanner data from the handheld dimensional measurement scanner; and
determining whether the coating maintains a protrusion density above a threshold density.