METHOD OF MANUFACTURING MULTILAYER PANELS Russian patent published in 1995 - IPC

FIELD: plastic metal working and welding. SUBSTANCE: method of manufacturing the multilayer panels of the sheet bars of the filler and sheathings includes the hermetic sealing along the contour, installation into the technological equipment, heating up to the temperature of the material superplasticity of the sheet bars and the molding of the working medium by pressure till the formation of cells and the diffusive connection of the contacting surfaces of the filler and sheathings. The working medium is fed the zone of the diffusive connection after its passage through the filler cavity. EFFECT: facilitated manufacture of articles having the complicated profile, panels for example. 3 cl, 1 dwg