Location

Snowbird, UT, USA

Start Date

1-1-1999 12:00 AM

Description

In the manufacture of hollow jet engine turbine blades, monitoring the wall thickness is an important component of quality control. Because of the inaccessibility of the inner air channel to mechanical probing, ultrasonics provides one of the few means by which the necessary measurements can be done. The complex shape of the blades and the fact that they are often acoustically anisotropic make this a challenging problem. Alternative techniques have been investigated[1] for the wall thickness measurements but ultrasonics still presents the best option, and hence the continued interest in this problem[2].

Book Title

Review of Progress in Quantitative Nondestructive Evaluation

Volume

18B

Chapter

Chapter 7: New Techniques and Applications

Section

Ultrasonic Techniques and Applications

Pages

2001-2007

DOI

10.1007/978-1-4615-4791-4_256

Language

en

File Format

application/pdf

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Jan 1st, 12:00 AM

Acoustic Microscopy Wall Thickness Measurements on Nickel Based Superalloy Gas Turbine Blades

Snowbird, UT, USA

In the manufacture of hollow jet engine turbine blades, monitoring the wall thickness is an important component of quality control. Because of the inaccessibility of the inner air channel to mechanical probing, ultrasonics provides one of the few means by which the necessary measurements can be done. The complex shape of the blades and the fact that they are often acoustically anisotropic make this a challenging problem. Alternative techniques have been investigated[1] for the wall thickness measurements but ultrasonics still presents the best option, and hence the continued interest in this problem[2].