Разработка устройств для формообразования и доводки монолитных панелей сложных форм

Abstract

Classifier of integral panels used in aircraft design is given as their obtaining can cause several technological problems when forming: poor accuracy, high labour content of finishing works, etc. Given was the classification of forming methods for finned panels including methods of forming before mechanical treatment with application of laser profiling. Were defined the requirements for technological forming processes and form finishing of ribbed panels of complex forms. Proposed was the method of form change by local deformation using bending moment and axial thrust. The possible strain patterns were considered and devices for process realization were proposed. Briefly were described the devices for finishing and adjusting finned panels without press application as well as special die for obtaining panels with double curvature by setting middle zones. Test results of the process were described based on the samples of aluminum alloys and main technological recommendations were given.