Component with inspection-facilitating features
Abstract
A turbine airfoil can be formed with features to facilitate measurement of its wall thickness. An outer wall of the airfoil can include an outer surface and an inner surface. The outer surface of the airfoil can have an outer inspection target surface, and the inner surface of the airfoil can have an inner inspection target surface. The inner and outer target surfaces can define substantially flat regions in surfaces that are otherwise highly contoured. The inner and outer inspection target surfaces can be substantially aligned with each other. The inner and outer target surfaces can be substantially parallel to each other. As a result of these arrangements, a highly accurate measurement of wall thickness can be obtained. In one embodiment, the outer inspection target surface can be defined by an innermost surface of a groove formed in the outer surface of the outer wall of the airfoil.
- Inventors:
- Issue Date:
- Research Org.:
- Siemens Energy, Inc. (Orlando, FL)
- Sponsoring Org.:
- USDOE
- OSTI Identifier:
- 1124616
- Patent Number(s):
- 8646511
- Application Number:
- 12/850,147
- Assignee:
- Siemens Energy, Inc. (Orlando, FL)
- Patent Classifications (CPCs):
-
B - PERFORMING OPERATIONS B22 - CASTING B22C - FOUNDRY MOULDING
F - MECHANICAL ENGINEERING F01 - MACHINES OR ENGINES IN GENERAL F01D - NON-POSITIVE DISPLACEMENT MACHINES OR ENGINES, e.g. STEAM TURBINES
- DOE Contract Number:
- FC26-05NT42644
- Resource Type:
- Patent
- Country of Publication:
- United States
- Language:
- English
- Subject:
- 42 ENGINEERING
Citation Formats
Marra, John J, and Zombo, Paul J. Component with inspection-facilitating features. United States: N. p., 2014.
Web.
Marra, John J, & Zombo, Paul J. Component with inspection-facilitating features. United States.
Marra, John J, and Zombo, Paul J. Tue .
"Component with inspection-facilitating features". United States. https://www.osti.gov/servlets/purl/1124616.
@article{osti_1124616,
title = {Component with inspection-facilitating features},
author = {Marra, John J and Zombo, Paul J},
abstractNote = {A turbine airfoil can be formed with features to facilitate measurement of its wall thickness. An outer wall of the airfoil can include an outer surface and an inner surface. The outer surface of the airfoil can have an outer inspection target surface, and the inner surface of the airfoil can have an inner inspection target surface. The inner and outer target surfaces can define substantially flat regions in surfaces that are otherwise highly contoured. The inner and outer inspection target surfaces can be substantially aligned with each other. The inner and outer target surfaces can be substantially parallel to each other. As a result of these arrangements, a highly accurate measurement of wall thickness can be obtained. In one embodiment, the outer inspection target surface can be defined by an innermost surface of a groove formed in the outer surface of the outer wall of the airfoil.},
doi = {},
journal = {},
number = ,
volume = ,
place = {United States},
year = {Tue Feb 11 00:00:00 EST 2014},
month = {Tue Feb 11 00:00:00 EST 2014}
}
Works referenced in this record:
Manufacture and inspection of an article
patent, November 1982
- Wilkinson, Bernard H.
- US Patent Document 4,358,882
Investment casting cores and methods
patent, November 2006
- Snyder, Jacob; Beals, James T.
- US Patent Document 7,134,475
Method for checking wall thickness of hollow core airfoil
patent, January 2012
- Propheter-Hinckley, Tracy A.; McGarrah, Craig R.
- US Patent Document 8,087,447
Thermographic detection of internal passageway blockages
patent, October 2012
- Shepard, Steven M.; Lhota, James R.; Ahmed, Tasdiq
- US Patent Document 8,287,183