发明名称 |
METHOD TO MAKE STEEPLY CURVED SETSQUARE |
摘要 |
FIELD: technological processes.SUBSTANCE: invention relates to metal working by pressure and may be used in different fields of machine building in manufacturing of connection parts of welded pipelines. In process of hydraulic moulding the tight joint between a settling puncheon and a pipe stock is provided by means of a concentric pipe element made by mechanical treatment. The concentric process pipe element is connected to the pipe stock by welding and is swaged with tight fit along the internal surface by an axial puncheon in process of hydraulic moulding.EFFECT: invention provides for elimination of pipe stock end warp.2 dwg |
申请公布号 |
RU2545980(C1) |
申请公布日期 |
2015.04.10 |
申请号 |
RU20130143584 |
申请日期 |
2013.09.26 |
申请人 |
FEDERAL'NOE GOSUDARSTVENNOE UNITARNOE PREDPRIJATIE "GOSUDARSTVENNYJ KOSMICHESKIJ NAUCHNO-PROIZVODSTVENNYJ TSENTR IM. M.V. KHRUNICHEVA" |
发明人 |
VOLGIN ALEKSANDR VASIL'EVICH;NEDOLIVKO DMITRIJ ALEKSANDROVICH |
分类号 |
B21D9/00;B21C37/28;B21D35/00 |
主分类号 |
B21D9/00 |
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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