Cold spray method for producing gas turbine blade tip
US7836593B2 · kind B2 · utility
Assignee
Inventor
Key dates
| Filing date | Aug 19, 2005 |
| Grant date | Nov 23, 2010 |
| Priority date | — |
| Expiry date | Aug 14, 2029 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10T29/49339
- WIPO fieldSurface technology, coating
- WIPO sectorChemistry
Abstract
A quantity of particles (28) may be cold-sprayed toward the distal surface (22) of a turbine blade (6) at a temperature below a melting point of the particles at a velocity sufficiently high to cause at least a portion of the particles to adhere to the surface to form squealer ridge (24) with a desired cutting profile. The cutting profile may be defined by a face (52) and a land (54) disposed at a relief angle (38) relative to a direction of motion (58) of a cutting edge (48). The ridge may be built by multiple passes of a cold spray gun depositing sequential layers (30, 32, 34) of varying widths. An in-service blade having worn distal surface may be repaired using this technique.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.