发明名称 DEFORMABLE SHEET CONSTRUCTION MATERIAL
摘要 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
申请公布号 RU2138343(C1) 申请公布日期 1999.09.27
申请号 RU19990105159 申请日期 1999.03.22
申请人 ZAKRYTOE AKTSIONERNOE OBSHCHESTVO "INTELLEKT" 发明人 LOBKO V.P.;TORITSYN I.V.
分类号 B21B1/38 主分类号 B21B1/38
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