METHOD OF MANUFACTURING MULTILAYER PANELS Russian patent published in 1994 - IPC

FIELD: manufacturing of complex-shaped products of panel type by combined superplastic forming and diffusion welding process. SUBSTANCE: method involves providing continuation of welding seams forming pattern at least at one side of pack perimeter into processing zone up to the location of connection of working fluid inlet-outlet system. Welding seams are made continuous or interrupted in processing zone, with welding point spacing not exceeding 2 2 ρ_нап. Lining sheets are subjected to additional deformation at the same side of pack perimeter so that cavity is defined between lining and filler. Height h of cavity is determined by ratio recited in Specification. EFFECT: wider operational capabilities and simplified construction. 14 cl, 2 dwg