发明名称 |
DEVICE FOR COMBINED DRAWING OF SOLID AND HOLLOW STRUCTURAL SECTION |
摘要 |
FIELD: process engineering.SUBSTANCE: invention relates to combined metal forming and cutting, particularly, to drawing of solid and hollow structural sections. Device comprises two calibrating spinnerets with regular micro relief connected by their ends. Said spinnerets are fitted in cartridge with cavity for oil pressure feed to section straining zone via radial channels made at connected ends of said spinnerets. This device is provided with extra composite spinneret with spherical deforming elements, their surfaces having a regular micro relief. Note here that one calibrating spinneret has a cutting element shaped to tooth with point of 20-35 degrees and arranged at its front and shaped to circle or to structural section cross-section. Note here that said spherical deforming elements and calibrating spinnerets are made of partially stabilized zirconium dioxide or sintered solid alloys. Extra composite spinneret is provided with lengthwise chips removal grooves with regular micro relief to rule out hard-to-remove chips.EFFECT: higher efficiency of drawing.3 dwg |
申请公布号 |
RU2560475(C2) |
申请公布日期 |
2015.08.20 |
申请号 |
RU20130156526 |
申请日期 |
2013.12.20 |
申请人 |
OTKRYTOE AKTSIONERNOE OBSHCHESTVO "NAUCHNO-PROIZVODSTVENNOE PREDPRIJATIE "RESPIRATOR" |
发明人 |
GARKUNOV DMITRIJ NIKOLAEVICH;MEL'NIKOV EHDUARD LEONIDOVICH;SHCHEDRIN ALEKSEJ VLADISLAVOVICH;OSIKO VJACHESLAV VASIL'EVICH;LOMONOVA ELENA EVGEN'EVNA;GAVRILOV STANISLAV ALEKSANDROVICH;BODAREVA ANASTASIJA VJACHESLAVOVNA;STUPNIKOV VLADIMIR PETROVICH |
分类号 |
B21C3/12 |
主分类号 |
B21C3/12 |
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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