Integration of M.I.T. Studies on Prediction and Control of Distortion in Welded Aluminum Structures,

摘要

This report covers the development of analytical means for predicting and controlling weld distortion of welded aluminum structures. The report presents basic background information and covers the present state-of-the-art by integrating results obtained recently at M.I.T. Distortion in welded structures is caused by three fundamental dimensional changes, namely transverse shrinkage, longitudinal shrinkage and angular change. During the fabrication of actual structures, such as ships, airplanes and buildings which have various types of joints, these dimensional changes are combined. Therefore, shrinkage distortion that occurs in structures can be extremely complex.