Shot peen forming method realizing torsional deformation of high-rib integral panel

Abstract

The invention provides a shot peen forming method realizing torsional deformation of a high-rib integral panel. The method comprises steps as follows: step 1, the high-rib integral panel is clamped and fixed; step 2, force pointing to the inner side of skin (1) is applied to two ends of the high-rib integral panel, and force pointing to the outer side of the skin (1) is applied to the middle of the high-rib integral panel; step 3, a shot peening area (3) is determined on the high-rib integral panel, a first nozzle (4) performs shot peen on the outer side of the skin (1) in the shot peening area (3) along a preset shot peen track, and second nozzles (5) perform shot peen on each high rib (2). According to the shot peen forming method, the application of shot peen forming to the integral panel with high rids, thin walls and a torsional shape is broadened, so that the development of the shot peen forming technology is promoted, more space and choices are provided for design and manufacture of the integral panel of an aircraft in the future, and further increase of the integral design level of the aircraft becomes possible.

Description

technical field [0001] The invention relates to the field of sheet metal forming, in particular to a shot blasting forming method for torsional deformation of a high-rib integral wall plate. Background technique [0002] Shot peening is a plastic forming method derived from the surface shot peening process, which has the following advantages: simple process equipment, no mold required; the length of shot peened parts is not limited by the size of the equipment; it can improve the fatigue resistance of parts and Corrosion resistance characteristics, etc. With these technical advantages, shot peening is widely used in the integral panel forming of aircraft wings, fuselages, rocket fuel tanks and other components. [0003] With the development of shot peening technology, prestressed shot peening has been gradually promoted. Under the same shot peening intensity and coverage, the forming limit of prestressed shot peening is 2 to 3 times that of free shot peening. Shot peening ...

AI Technical Summary

Problems solved by technology

[0005] In order to overcome the problem that the existing shot blasting technology cannot form the high-rib integral wall plate with synchronous torsion of the outer surface and the rib, the present invention provides a shot peening method for twisting and deforming the high-rib integral wall plate

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