发明名称 |
METHOD OF PRODUCING HOLLOW FORGED PIECES |
摘要 |
FIELD: process engineering. ^ SUBSTANCE: invention relates to metal forming and may be used in producing hollow forged pieces on mandrel. Mandrel is fitted in cavity of hollow billet heated to deformation temperature. Billet is forged on mandrel and the latter is withdrawn thereafter. In forging the billet and withdrawing the mandrel, ultrasound vibrations are excited. Said vibrations are directed in parallel with friction forces between billet and mandrel and surface of contact there between. Four-hammer forging press may be used for forging. ^ EFFECT: reduced friction forces between billet and mandrel. ^ 2 cl |
申请公布号 |
RU2438826(C2) |
申请公布日期 |
2012.01.10 |
申请号 |
RU20100112083 |
申请日期 |
2010.03.29 |
申请人 |
OTKRYTOE AKTSIONERNOE OBSHCHESTVO "TJAZHPRESSMASH" |
发明人 |
VOLODIN ALEKSEJ MIKHAJLOVICH;SOROKIN VLADISLAV ALEKSEEVICH;LAZORKIN VIKTOR ANDREEVICH;PETROV NIKOLAJ PAVLOVICH;RAKHMANIN ALEKSANDR VASIL'EVICH;PETROV PAVEL NIKOLAEVICH |
分类号 |
B21J1/04;B21K21/00 |
主分类号 |
B21J1/04 |
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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