Abstract
A mathematical model formulated for the prediction of distortion of airframe components manufactured from 7050-T7451 aluminum plates, caused by residual stresses introduced by the manufacturing process of the plate, was tested in validation experiments. The results indicate that distortion in thin gauge parts is caused primarily by machining-induced residual stresses. The residual stresses introduced by the plate manufacturing process, which includes hot rolling, quenching stretching, and aging operations, have a minor effect on distortion, consistent with the predictions based on the mathematical model described herein.
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