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    VERFAHREN UND VORRICHTUNG ZUR HERSTELLUNG FLANSCHBEHAFTETER ZIEHTEILE MIT GLEICHZEITIGEM BESCHNITT
    6.
    发明公开
    VERFAHREN UND VORRICHTUNG ZUR HERSTELLUNG FLANSCHBEHAFTETER ZIEHTEILE MIT GLEICHZEITIGEM BESCHNITT 有权

    公开(公告)号：EP2701862A1

    公开(公告)日：2014-03-05

    申请号：EP12717670.9

    申请日：2012-04-25

    申请人： ThyssenKrupp Steel Europe AG

    发明人： FLEHMIG, Thomas

    IPC分类号： B21D22/20 ,  B21D24/16 ,  B21D37/08

    CPC分类号： B21D22/02 ,  B21D22/22 ,  B21D22/30 ,  B21D24/16

    摘要： The invention relates to a method for producing flanged drawn parts from a metal blank (10, 12) by using a drawing punch (1) with at least one cutting edge (9) or rounded portion (91), a blank holder (7) and a drawing die (2), wherein the drawing die (2) has a wall region (4), a flange region (3) and a supporting region (6) for the blank (10, 12), the blank (10, 12) is placed on the supporting region (6) of the drawing die (2) and is shaped into the drawn part and trimmed at the flange region (3) by moving the drawing punch (1) into the drawing die (2). The object of providing such a method and such a device that allow a simpler construction of the tool, a self-centring system and at the same time a reliable, dimensionally accurate production of flanged drawn parts is achieved by the supporting region (6) being formed in an elevated and stationary manner with respect to the flange region (3), the difference in height (4) corresponding at least to the wall thickness of the blank (10, 12), and the cutting edge (9) or rounded portion (91) provided on the drawing punch (1) engaging with a rounded portion (8) or cutting edge (81) provided at the transition between the supporting region (6) and the flange region (3) while the drawing punch (1) is moving into the drawing die (2), and so regions of the blank (10, 12) that project beyond the flange region (3) are cut off during the further drawing operation.

    摘要翻译： 本发明涉及一种使用具有至少一个切割边缘或圆形部分的拉伸冲头从金属板的平面和/或预成形板制造凸缘拉伸构件的装置和方法，保持构件和拉伸模具，其中图 模具具有肋区域，凸缘区域和用于板的支撑区域，该板被放置在拉拔模具的支撑区域上，并且通过将拉拔冲头引入到拉伸模具中而被成形为拉伸构件 时间在法兰区域切割。

    VERFAHREN UND VORRICHTUNG ZUR HERSTELLUNG EINES HOHLKÖRPERS UND HOHLKÖRPER
    8.
    发明公开
    VERFAHREN UND VORRICHTUNG ZUR HERSTELLUNG EINES HOHLKÖRPERS UND HOHLKÖRPER 有权
    方法和设备用于生产空心体和空心

    公开(公告)号：EP2205370A1

    公开(公告)日：2010-07-14

    申请号：EP08838645.3

    申请日：2008-10-17

    申请人： ThyssenKrupp Steel Europe AG

    发明人： FLEHMIG, Thomas ,  GORSCHLÜTER, Jörg ,  MERTENS, Oliver

    IPC分类号： B21C37/08 ,  B21C37/18 ,  B21D41/02

    CPC分类号： B21C37/185 ,  B21C37/0815 ,  B21D22/025 ,  B21D41/02

    摘要： The invention relates to a process for producing a hollow body from metal, said hollow body having at least one first axial portion with a first cross-sectional area and a second axial portion with a second cross-sectional area, and in which the two axial portions of the hollow body are connected to one another by means of a shape transition running in the axial direction, wherein a preform body having at least one transition region which extends in the axial direction of the hollow body to be produced and is arranged between the first axial portion and the second axial portion is produced, wherein, in the transition region, the cross-sectional area of the preform body preferably continuously changes from the cross-sectional area of the first axial portion into the cross-sectional area of the second axial portion, the preform body (1) is accommodated in a die (5), wherein the die (5) has the final external shape of the hollow body to be produced, a shaping mandrel (7) is inserted into the preform body (1), wherein the shaping mandrel (7) has the internal shape of the hollow body to be produced, and an axial movement of the shaping mandrel (7) upsets the preform body (1) in the die (5) into the final shape of the hollow body. In addition, the invention relates to an apparatus for carrying out the process.