| ABSTRACT: | PHASED ARRAY TRANSDUCER CALIBRATION FOR AUTOMATED INSPECTION SYSTEMS
V. A. Kramb, B. Frock, and D. A. Stubbs
Structural Integrity Division, University of Dayton Research Institute, Dayton, OH, USA
Inspection results will be presented from titanium and nickel base superalloys containing a variety of
synthetic and naturally occurring inclusions, voids, and defects.
for making engine component accept/reject decisions under contract by the US Air Force has designed and
constructed a fully automated ultrasonic inspection system for the detection of embedded defects in rotating
gas turbine engine components.
This paper will discuss current progress in the development of a database of ultrasonic data from aerospace
engine alloys containing a variety of synthetic and naturally occurring inclusions, voids, and defects. se
automated calibration procedure for various phased array apertures and specimen geometries. The presented
results were obtained on the prototype inspection system, on engineered specimens containing various
geometric targets and embedded defects. The for sbased on probability of detection (POD) information. .
However, development of inspection processes for making engine component accept/reject decisions
requires an extensive database of material specimens containing known defects.
|