method for the manufacture of lightweight sheet metal structural elements with soul mobile phone integrated stiffening and related structural elements.

摘要

The method for the fabrication of lightweight structural members comprises a first step in which a box structure (10) is manufactured of sheet metal consisting of two half-shells (11, 12), a second step in which a cellular web (16) is manufactured on the surface of which a plurality of three-dimensional cells having hills (17) and valleys (18) are formed, and a third step in which the web (16), placed inside the half-shells (11, 12) so as to bring the hills and the valleys into contact with the half-shells (11, 12), is rendered rigidly and permanently integral with the half-shells (11, 12), and the half-shells in turn are rendered integral with each other; provision is also made for a fourth step, in which the space inside the half-shells (11, 12) is filled with a rigid synthetic resin.