发明名称 |
METHOD FOR MAKING HOLLOW PARTS WITH BRANCHES |
摘要 |
FIELD: plastic metal working in machine engineering, possibly manufacture of hollow parts with branches. SUBSTANCE: method comprises steps of shaping branch in working cavity of die half; calibrating branch along outer surface and working end of branch by end upsetting process; placing inside branch elastic member with cavity; performing end upsetting by means of stepped punch and simultaneously creating counterpressure with use of rigid insert arranged in hollow part. It provides formation of thickened portions on walls of branches of hollow parts. EFFECT: simplified system of effort applying, reduced manufacturing expenses. 1 dwg
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申请公布号 |
RU2208492(C2) |
申请公布日期 |
2003.07.20 |
申请号 |
RU20010103396 |
申请日期 |
2001.02.05 |
申请人 |
SITET IM. S.P. KOROLEVA;SAMARSKIJ G AEHROKOSMICHESKIJ |
发明人 |
KOMAROV A.D.;BARVINOK V.A.;MOISEEV V.K.;SMAGINA O.P.;SHAROV A.A.;SHALIN S.K. |
分类号 |
B21C37/29;B21D22/10;(IPC1-7):B21C37/29 |
主分类号 |
B21C37/29 |
代理机构 |
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代理人 |
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主权项 |
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地址 |
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