发明名称 APPARATUS FOR DRAWING AND TRIMMING PARTS
摘要 FIELD: plastic metal working, possibly equipment for cold sheet forming, namely for drawing and trimming allowance along contour of thin-sheet parts. SUBSTANCE: apparatus includes punch mounted in upper plate by means of elastic sleeve through punch holder and arranged in metallic bushing with cutting edge. Holder engaging with member for fixing blank position is spring-loaded relative to upper plate by means of set of elastic sleeves. Fixing member is mounted in lower die to which elastic disc is pressed-in. EFFECT: enhanced strength of parts due to thickened portion of material in zone of joining bottom with wall. 2 dwg
申请公布号 RU2194590(C2) 申请公布日期 2002.12.20
申请号 RU20000130401 申请日期 2000.12.04
申请人 SITET IM. S.P. KOROLEVA;SAMARSKIJ G AEHROKOSMICHESKIJ 发明人 KOMAROV A.D.;BARVINOK V.A.;MOISEEV V.K.;EVDOKIMOVA E.JU.;SHAROV A.A.
分类号 B21D22/30;B21D24/16;(IPC1-7):B21D22/30 主分类号 B21D22/30
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