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    • 3. 发明申请
    • Method for producing a branch pipe
    • 分支管的制造方法
    • US20050028366A1
    • 2005-02-10
    • US10491663
    • 2002-09-17
    • Wilfried BienPierre BonnyMichael HalvesThomas HuelsbergUwe KluessmannHolger NuhnRalf PuenjerOlav ReinhardtDirk RiewertThorsten Sternal
    • Wilfried BienPierre BonnyMichael HalvesThomas HuelsbergUwe KluessmannHolger NuhnRalf PuenjerOlav ReinhardtDirk RiewertThorsten Sternal
    • B21C37/29F01N13/18F16L39/00F16L41/00
    • F01N13/18B21C37/296Y10T29/49428Y10T29/4943Y10T29/49442
    • The invention relates to a method for producing a branch pipe. In order for the dependable production of a branch pipe with virtually any desired design of the branch to be made possible in a simple way it is proposed that an elongate, straight main curvature and at least two lateral curvatures, respectively branching off from a longitudinal side of the main curvature, lying opposite each other with respect to the central longitudinal axis of the main curvature extending in the material of the blank and having a mirror-symmetrically arranged base line are formed from a blank by deep-drawing. After the forming operations, the blank is trimmed in such a way that a vessel-like shell part, which is open in the longitudinal direction, is formed from the main curvature, and half-sleeves, which adjoin the shell part, lie in the same plane as the shell part and are open in the direction of their extent, are formed from the lateral curvatures, and that sheet metal strips serving as joining flanges extend along the outside of the lateral edges of the shell part and the half-sleeves. Subsequently, the shell part is bent about a spatial axis parallel to the central longitudinal axis until the joining flanges corresponding to one another on both sides of the shell part lie against one another, and, after that, the joining flanges are connected to one another.
    • 本发明涉及一种分支管的制造方法。 为了以简单的方式可靠地生产具有实际上所需的分支设计的支管,可以提出一种细长的,直的主曲率和至少两个横向曲率,分别从纵向侧 主曲率相对于在坯料的材料中延伸的主曲率的中心纵向轴线彼此相对并且具有由镜子对称布置的基线通过深冲从坯件形成。 在成型操作之后,坯料被修整成使得沿纵向敞开的容器状壳体部分由主曲率形成,并且与壳体部分邻接的半套筒位于 与外壳部分相同的平面并且沿其横向的方向开口,由侧向曲率形成,并且用作接合凸缘的金属板条沿外壳部分和半套筒的侧边缘的外侧延伸。 随后,壳体部分围绕平行于中心纵向轴线的空间轴线弯曲,直到壳体两侧彼此相对应的接合凸缘彼此相对,并且之后,接合凸缘彼此连接 。