The welding stress and distortion which are induced bynon-equilibrium heat and cool process have serious effects on weldingprocess and the service behavior of welded structures, and is one of thekey techniques in the process of production and manufacture of weldedstructures. This paper has summarized the prediction of 3-D welding stressand distortion, controlling, numerical simulation technique, combiningwith our the researching work ,the difficulties and problems to be solved inthe prediction of welding st...
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