METHOD OF RIVETING COMBINED PACKS Russian patent published in 1994 - IPC

FIELD: metal forming. SUBSTANCE: method comprises steps of disassembling a pack after forming an opening in it; forming a cylindrical recess, coaxial with the above mentioned opening, by axial plastic compression of a part of a traditional material; assembling the pack by placing a part of a fibrous composition material on the part of the traditional material at side of its cylindrical recess, then applying a compression effort to the part of the traditional material at side, opposite to the cylindrical recess, and fixing the parts of the pack by shifting the material of the respective part into the cylindrical recess; successive punching an opening in the part of the fibrous composition material with the aid of the material, had been shifted, and filling by the shifted material the opening, had been formed in the part of the fibrous composition material; placing a rivet in the opening of the pack parts, had been fixed, at side of the part of the opening of the pack parts, had been fixed, at side of the part of the fibrous composition material and fixing the rivet in it, for example by axial plastic compression of the part of the traditional material along its diameter, being more, than a diameter of the cylindrical opening; forming a closing head of the rivet. EFFECT: enhanced quality of riveting of combined devices. 2 cl, 8 dwg