Since few years, Stelia Aerospace develops process simulations particularly the stretching process. The aims of these developments are to sustain the production of Stelia Aerospace, to improve the productivity, validate the feasibility and contribute to developments of new products of Stelia Aerospace.
This developments combines, firstly, work of modeling the stretch forming machine and validate its representativeness. During this first step, we conducted some tests on the machine. We used the stereocorrelation to follow the strain during forming and we controlled the panel geometry after springback. The data is then used to correlate with the modeling. Secondly, we worked on the automating of the optimization of the manufacturing program in order to achieve a single stretch forming process for double curvature panel. On the optimization step, Stelia Aerospace uses Hyper study features to automate to search for an optimum.