Development of the method on the stress-strain state assessment of products taking into account technological heredity

The article presents a technique that allows assessing the stress-strain state of products both at the stages of technological operations and upon completion of the manufacturing process. The technique is based on a finite element model, which makes it possible to obtain stress and strain fields depending on the loaded diagrams of residual stresses that are formed during the process of the technological operation under study. Thus, the developed technique can serve as an effective tool for optimizing technological operations, and hence the technological process as a whole. As an example, the paper considers the optimization of the technological process of the front support traverse of a domestic advanced aircraft. As a result of using the presented methodology, it turns out to determine the most advantageous modes of processing the problem area of the traverse, which made it possible to increase the working life of the part to the required value.