Abstract: A structural part includes a plate-shaped base body and ribs that extend longitudinally approximately parallel to one another, and that are joined integrally to and protrude orthogonally from the base body. In a shaping method, the structural part is shaped by particles of blasting or peening shot, which strike the surface areas of the structural part at a high velocity to cause a plastic deformation thereof. Opposite surface areas of the ribs, located on opposite longitudinal sides of each rib, are simultaneously subjected to the action of particles of the blasting shot. An apparatus to perform the method includes two nozzles arranged facing toward one another with the rib therebetween, to form two jets of the blasting shot particles directed toward one another at the rib.

Abstract: The invention relates to a method for shaping structural parts, in particular, those for use in aviation and space travel. The structural parts comprise a plate-shaped base body and ribs. Said ribs are longitudinally extended, are approximately parallel to one another, are joined to the base body while forming one piece, and protrude from the base body in orthogonal manner. The part is shaped by particles of an abrasive, which strike the surface areas of the structural part at a high velocity whereby effecting a plastic material shaping. The aim of the invention is to realize a method that can be carried out in a simple and cost-effective manner with which diverse uniaxial and multiaxial part geometries can be attained. To this end, the invention provides that opposite surface areas of the ribs, said surface areas being located on opposite longitudinal sides of each jib, are simultaneously subjected to the action of particles of the abrasive.