DEFORMABLE SHEET CONSTRUCTION MATERIAL Russian patent published in 1999 - IPC

FIELD: manufacture of articles having metallic parts, for example by rolling, powder metallurgy or welding including explosion welding method in building, machine engineering or other industry branches. SUBSTANCE: deformable sheet construction material includes at least two layers in cross section. At least in boundary of front and(or) back surface at least of one layer and(or) at least in one apex at least of one layer of cross section, at least a part of line of cross section boundary is in the form of fragment and(or) combination of fragments of oblique cone section of straight circular cone. It provides thickness change at least of one layer of deformed sheet construction material at shaping operations. EFFECT: enhanced technological effectiveness, reduced material consumption of articles made of such sheet construction material. 24 cl, 21 dwg