Use of morphing techniques within weld distortion analysis to simulate the size customization of parts during assembly and welding of the vacuum vessel PS3 outer shell

摘要

During welding of large, massive and complex assemblies, the accumulated shrinkage of parallel welds may cause a cumulative distortion effect which significantly varies the dimensions and geometry of the welded portion while still unfinished. The subsequent parts to be added require customization to fit in the space to allocate them.When welding distortion analysis (WDA) is carried out, the process described of part size customization needs to be taken into account; otherwise it would be a relevant source of inexactitude for the prediction of distortion. A methodology is presented to include in WDA the size customization of the parts being added to fit into a distorted assembly.