Comparative Analysis of Ultrasonic Inspection Procedures for Kaman K747 Root End Fittings

摘要

This report provides a comparative analysis of two ultrasonic inspection procedures for Kaman Aerospace Corporation's K747 root end fittings. The procedure currently being used was originally developed by Truton under contract through Kaman Aerospace, the fabricator of the root end fitting.The other procedure is a revision of the existing Truton procedure which was prepared by the U.S. Army Materials Technology Laboratory (MTL). Both procedures were compared against a sample of ten previously rejected root end fittings. Aluminum, Ultrasonics, Attack helicopters, Rotor blades, Stress corrosion, Hydrogen embrittlement. (MJM)