Forming hollow cylindrical bodies from solid semi-fabrications - using successively forming rolls and drawing die,申请号DE19924205676-传众专利搜索

发明名称	Forming hollow cylindrical bodies from solid semi-fabrications - using successively forming rolls and drawing die
摘要	Cylindrical hollow parts are mfd. from solid semi-fabrications by a method in which the part is preformed between a ram (1) and at least two pressure rolls in a forward movement in which an increase in dia. (X) results. The rolls are then removed and a split drawing die in the form of at least two segments (4) is applied at the end position of the rolls and to apply a stretch-drawing face to produce the required dia. (D). ADVANTAGE - High degree of accuracy in forming.
申请公布号	DE4205676(A1)	申请公布日期	1993.08.26
申请号	DE19924205676	申请日期	1992.02.25
申请人	SCHWAGER, ARIBERT, PROF. DR.-ING.HABIL., O-9081 CHEMNITZ, DE;FRANK, ANDREAS, DIPL.-ING., O-9316 SCHLETTAU, DE;HEROLD, GUENTER, DR.-ING., O-9044 CHEMNITZ, DE	发明人	SCHWAGER, ARIBERT, PROF. DR.-ING.HABIL., O-9081 CHEMNITZ, DE;FRANK, ANDREAS, DIPL.-ING., O-9316 SCHLETTAU, DE;HEROLD, GUENTER, DR.-ING., O-9044 CHEMNITZ, DE
分类号	B21C1/24;B21D22/16	主分类号	B21C1/24
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