Evaluation of Forged Helicopter Components Processed with Controlled Solidification and Thermal-Mechanical Treatments

摘要

A four task program was conducted to provide information for evaluating helicopter dynamic system components fabricated from aluminum alloy forgings produced with advanced processing techniques. Components produced with the advanced techniques, involving intermediate thermal-mechanical treatment of ingots, were tested side-by-side with conventionally produced components. Tests were conducted to determine fatigue strength and damage tolerance characteristics of the components. (Author)