发明名称 HOLLOW SPHERICAL PART MAKING METHOD
摘要 FIELD: plastic working of metals, namely manufacture of hollow spherical parts. ^ SUBSTANCE: method comprises steps of filling blank with melt filler poured into annular cavity formed by means of blank and rod coaxially arranged inside blank; using filler whose melting temperature is less than that of blank material; cooling filler until solidifying it; squeezing and forming blank with filler in semi-spherical dies; then heating filler and removing it out of formed spherical part. ^ EFFECT: lowered energy consumption due to reduced mass of filler. ^ 2 cl, 2 dwg, 2 ex
申请公布号 RU2242315(C2) 申请公布日期 2004.12.20
申请号 RU20020129816 申请日期 2002.12.23
申请人 发明人 MATVEEV A.S.;TRUSKOV A.M.;DRAPKIN JU.B.;ALEKSANDROV A.A.;BEKETOV V.N.
分类号 B21D9/15;B21D51/08 主分类号 B21D9/15
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