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

FIELD: superplastic forming and diffusion welding. SUBSTANCE: method involves subjecting portions of lining sheets on one side of pack perimeter opposite each seam defining filler pattern to additional deformation so that channels are formed between lining sheets and filler, with channel width satisfying conditions presented in formula recited in Specifications, The channels are contiguous with filler seam process zone and are communicated with gas inlet-outlet system. EFFECT: wider operational capabilities by providing forming of complex-shaped products and simplified method of forming. 1 dwg