Method of manufacturing a branched pipe by internal high-pressure forming
    1.
    发明授权
    Method of manufacturing a branched pipe by internal high-pressure forming 失效
    通过内部高压成形制造分支管的方法

    公开(公告)号:US5697155A

    公开(公告)日:1997-12-16

    申请号:US341113

    申请日:1994-11-18

    摘要: The invention relates to a method and a device for manufacturing T-pieces from an unbranched starting piece of pipe by means of internal high-pressure forming (IHF). For this purpose, the starting piece of pipe is placed in a two-part forming tool which gives the shape, can be opened and closed, surrounds the starting piece of pipe, and has a cutout corresponding to the desired shape of the T-shaped pipe branch. Placed in a sealing manner against the two open end faces of the inserted starting piece of pipe in each case is a plunger which is movable in the forming tool and can be pushed axially into the forming took in each case by a pressure cylinder. The interior of the starting piece of pipe is filled with pressure fluid by means of an opening in at least one of the plungers, prior to being placed on the plungers in a sealing manner. A fluid high-pressure is built up by pushing the plungers axially into the forming tool with high force and, thus initiated, by pushing pipe wall material axially towards the forming point, the pipe wall material is pressed into the cutout in the forming tool and the T-shaped branch is thus shaped. In order to be able to manufacture T-pieces with a curved branch, the end face of the T-shaped cutout for the pipe branch is supported with controllable force by means of a flexible mandrel.

    摘要翻译: 本发明涉及一种用于通过内部高压成形(IHF)从无支管起始管制造T形件的方法和装置。 为此,将管件的起始件放置在两部分成形工具中,其形状可以打开和关闭,围绕起始管件,并具有对应于T形的所需形状的切口 管道分支。 在每种情况下,以封闭方式抵靠插入的管件的两个开口端面设置有可在成形工具中移动的柱塞,并且可以在每种情况下被压力缸轴向推入成型。 在以密封方式放置在柱塞上之前,起始管件的内部通过至少一个柱塞中的开口填充有压力流体。 通过将柱塞轴向推入成形工具中并通过将管壁材料轴向推向成形点而启动,形成流体高压,管壁材料被压入成形工具中的切口中, T形分支因此成形。 为了能够制造具有弯曲分支的T形件,用于管支路的T形切口的端面通过柔性心轴以可控的力支撑。

    Method for producing a branch pipe
    3.
    发明申请
    Method for producing a branch pipe 审中-公开
    分支管的制造方法

    公开(公告)号:US20050028366A1

    公开(公告)日:2005-02-10

    申请号:US10491663

    申请日:2002-09-17

    摘要: 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.

    摘要翻译: 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 。

    Device for producing hollow bodies according to an internal high
pressure metal forming process
    4.
    发明授权
    Device for producing hollow bodies according to an internal high pressure metal forming process 失效
    根据内部高压金属成型工艺制造中空体的装置

    公开(公告)号:US5575172A

    公开(公告)日:1996-11-19

    申请号:US534463

    申请日:1995-09-27

    CPC分类号: B21D26/047

    摘要: A device for producing a hollow body according to an internal high pressure metal forming process has a tool which is divided along a mold joint into a stationary tool part and a liftable tool part. The tool has an impression for receiving a tube-shaped blank. A press opens and closes the tool. An axially movable slide is attached to an open end of the blank, through which a pressure medium is introduced into the blank. A hydraulic working cylinder which is angularly and vertically adjustable on a support member has a piston rod which holds the slide and which displaces the slide axially. A pair of pull rods connect the tool and the working cylinder and are arranged on opposite sides of the piston rod at the same level as the piston rod, each pull rod extending into the end-side portion of the mold joint and being releasably anchored to each of the stationary tool part and the liftable tool part in a form-locking manner in corresponding recesses along the mold joint. The recesses are configured such that after a working cycle the liftable tool part can be lifted away from the pull rod in a vertical direction without resistance. In another embodiment the pull rods are releasably anchored to a holding wall in a form-locking manner in corresponding recesses, the holding wall being stationarily fastened to the stationary tool part.

    摘要翻译: 根据内部高压金属成型方法制造中空体的装置具有沿着模具接头分割成固定工具部件和可升降工具部件的工具。 该工具具有接收管形坯料的印象。 按下打开并关闭工具。 一个可轴向移动的滑动件连接到坯料的开口端,压力介质通过该滑块引入坯料中。 在支撑构件上成角度和可垂直调节的液压工作缸具有保持滑块并使滑动件轴向移动的活塞杆。 一对牵引杆将工具和工作缸连接起来,并且与活塞杆的高度相同地设置在活塞杆的相对侧上,每个拉杆延伸到模具接头的端侧部分,并可释放地锚固到 固定工具部分和可升降工具部分中的每一个都以形状锁定方式沿着模具接头在相应的凹部中。 凹部被构造成使得在工作循环之后,可抬起的工具部件可以在垂直方向上从拉杆提升而没有阻力。 在另一个实施例中,拉杆以相互形式锁定的方式可释放地锚定在保持壁上,相应的凹槽中,保持壁固定地固定在固定工具部分上。

    Apparatus for producing an assembly linkage on a hollow profile
    5.
    发明授权
    Apparatus for producing an assembly linkage on a hollow profile 失效
    用于在空心轮廓上制造组装连杆的装置

    公开(公告)号:US07024769B2

    公开(公告)日:2006-04-11

    申请号:US10411293

    申请日:2003-04-11

    IPC分类号: B21D51/16 B29C45/14

    摘要: A process and a device produces an assembly linkage on a hollow profile which is shaped for the installation of the assembly part by internal high-pressure remodeling. In order to achieve the shaping of an assembly linkage in a component space-saving, for a subsequent assembly correctly positioned, and with regard to its contour exactly fitted to the assembly part, in simple manner and even with high degrees of remodeling in a secure process, the hollow profile, under internal pressure, which is smaller than the remodeling pressure, is indented at the place of the to-be-produced assembly linkage by a die and by forming a rough contour. Afterward, while the die remains in this indenting position, a fluid high pressure is created in the hollow profile. Thereby, the hollow profile sides surrounding the die are molded to the external contour of the die, and that after releasing the fluid high pressure and the subsequent removal of the die, the finished trough-shaped assembly linkage is released.

    摘要翻译: 工艺和装置在中空型材上产生组装连接件,中空型材通过内部高压重塑而成型为组装部件的安装。 为了在节省空间的部件中实现组装联动件的成形,对于后续组件的正确定位,并且关于其轮廓精确地装配到组装部件,以简单的方式甚至在安全的高度重塑中 在内部压力小于重塑压力的过程中,通过模具在待生产的组装连杆的位置处凹陷并且形成粗糙的轮廓。 之后,当模具保持在该压入位置时,在中空型材中产生流体高压。 因此,围绕模具的中空型材侧面被模制到模具的外部轮廓,并且在释放流体高压和随后的模具移除之后,完成的槽形组件连杆被释放。

    Process and apparatus for producing an assembly linkage on a hollow profile
    6.
    发明授权
    Process and apparatus for producing an assembly linkage on a hollow profile 失效
    用于在中空型材上生产组装连杆的方法和装置

    公开(公告)号:US06581263B1

    公开(公告)日:2003-06-24

    申请号:US09127915

    申请日:1998-08-03

    IPC分类号: B23P1700

    摘要: A process and a device produces an assembly linkage on a hollow profile which is shaped for the installation of the assembly part by internal high-pressure remodeling. In order to achieve the shaping of an assembly linkage in a component space-saving, for a subsequent assembly correctly positioned, and with regard to its contour exactly fitted to the assembly part, in simple manner and even with high degrees of remodeling in a secure process, the hollow profile, under internal pressure, which is smaller than the remodeling pressure, is indented at the place of the to-be-produced assembly linkage by a die and by forming a rough contour. Afterward, while the die remains in this indenting position, a fluid high pressure is created in the hollow profile. Thereby, the hollow profile sides surrounding the die are molded to the external contour of the die, and that after releasing the fluid high pressure and the subsequent removal of the die, the finished trough-shaped assembly linkage is released.

    摘要翻译: 工艺和装置在中空型材上产生组装连接件,中空型材通过内部高压重塑而成型为组装部件的安装。 为了在节省空间的部件中实现组装联动件的成形,对于后续组件的正确定位,并且关于其轮廓精确地装配到组装部件,以简单的方式甚至在安全的高度重塑中 在内部压力小于重塑压力的过程中,通过模具在待生产的组装连杆的位置处凹陷并且形成粗糙的轮廓。 之后,当模具保持在该压入位置时,在中空型材中产生流体高压。 因此,围绕模具的中空型材侧面被模制到模具的外部轮廓,并且在释放流体高压和随后的模具移除之后,完成的槽形组件连杆被释放。

    Air gap insulated exhaust pipe with branch pipe stub and method of manufacturing same

    公开(公告)号:US06539764B2

    公开(公告)日:2003-04-01

    申请号:US09956854

    申请日:2001-09-21

    IPC分类号: B21D3900

    摘要: A method for manufacturing an air-gap-insulated exhaust pipe having a branch stub, as well as an exhaust pipe produced according to such a method and a tool for forming such an exhaust pipe. Two tubes are inserted into one another to form a double tube. The double tube is placed in a first internal high-pressure shaping tool, and exposed to internal high pressure fluid such that it expands to match the contours of the engraving of the first shaping tool, and a double-walled branch stub is blown out of the double tube. The partially formed double tube is then placed in a second internal high-pressure shaping tool, with the double tube being surrounded, between the two ends including the branch stub, circumferentially and throughout by a corresponding design of the engraving, by an expansion chamber. The outer tube is expanded between the outer tube and inner tube under high pressure up to a precise fit with the engraving of the second shaping tool to form an insulating air gap, with the end of the branch stub being supported externally without yielding via a second counterpunch. The finished double tube is removed from the second shaping tool and a cap area of the branch stub, containing the end, is cut off to form a through opening between the interior of the inner tube and the ambient environment outside the air-gap-insulated exhaust pipe.

    Air gap insulated exhaust pipe with branch pipe stub and method of manufacturing same

    公开(公告)号:US06519851B2

    公开(公告)日:2003-02-18

    申请号:US09957540

    申请日:2001-09-21

    IPC分类号: B23P1500

    摘要: A method for manufacturing an air-gap-insulated exhaust pipe having a branch stub, as well as an exhaust pipe produced according to such a method and a tool for forming such an exhaust pipe. Two tubes are inserted into one another to form a double tube. The double tube is placed in a first internal high-pressure shaping tool, and exposed to internal high pressure fluid such that it expands to match the contours of the engraving of the first shaping tool, and a double-walled branch stub is blown out of the double tube. The partially formed double tube is then placed in a second internal high-pressure shaping tool, with the double tube being surrounded, between the two ends including the branch stub, circumferentially and throughout by a corresponding design of the engraving, by an expansion chamber. The outer tube is expanded between the outer tube and inner tube under high pressure up to a precise fit with the engraving of the second shaping tool to form an insulating air gap, with the end of the branch stub being supported externally without yielding via a second counterpunch. The finished double tube is removed from the second shaping tool and a cap area of the branch stub, containing the end, is cut off to form a through opening between the interior of the inner tube and the ambient environment outside the air-gap-insulated exhaust pipe.

    Air gap insulated exhaust pipe with branch pipe stub and method of manufacturing same
    9.
    发明授权
    Air gap insulated exhaust pipe with branch pipe stub and method of manufacturing same 失效
    带分支管短管的气隙绝缘排气管及其制造方法

    公开(公告)号:US06349468B1

    公开(公告)日:2002-02-26

    申请号:US09201134

    申请日:1998-11-30

    IPC分类号: B23P1500

    摘要: A method for manufacturing an air-gap-insulated exhaust pipe having a branch stub, as well as an exhaust pipe produced according to such a method and a tool for forming such an exhaust pipe. Two tubes are inserted into one another to form a double tube. The double tube is placed in a first internal high-pressure shaping tool, and exposed to internal high pressure fluid such that it expands to match the contours of the engraving of the first shaping tool, and a double-walled branch stub is blown out of the double tube. The partially formed double tube is then placed in a second internal high-pressure shaping tool, with the double tube being surrounded, between the two ends including the branch stub, circumferentially and throughout by a corresponding design of the engraving, by an expansion chamber. The outer tube is expanded between the outer tube and inner tube under high pressure up to a precise fit with the engraving of the second shaping tool to form an insulating air gap, with the end of the branch stub being supported externally without yielding via a second counterpunch. The finished double tube is removed from the second shaping tool and a cap area of the branch stub, containing the end, is cut off to form a through opening between the interior of the inner tube and the ambient environment outside the air-gap-insulated exhaust pipe.

    摘要翻译: 一种具有分支短截线的气隙绝缘排气管的制造方法以及根据这种方法制造的排气管和用于形成这种排气管的工具。 将两个管彼此插入以形成双管。 将双管放置在第一内部高压成形工具中,并暴露于内部高压流体,使其膨胀以匹配第一成形工具的雕刻的轮廓,并且将双壁分支柱从 双管。 然后将部分形成的双管放置在第二内部高压成型工具中,双管被包括分支短截线的两端之间,通过膨胀室沿圆周方向并贯穿于相应的雕刻设计。 外管在高压下在外管和内管之间扩张,直到与第二成形工具的雕刻精确配合,形成绝缘气隙,分支柱的端部从外部支撑而不通过第二 对方 将完成的双管从第二成形工具中取出,并将包含端部的分支短管的盖区域切断,以在内管的内部和气隙绝缘外的周围环境之间形成通孔 排气管。

    Process of manufacturing an air-gap-insulating exhaust elbow of a vehicle exhaust system
    10.
    发明授权
    Process of manufacturing an air-gap-insulating exhaust elbow of a vehicle exhaust system 失效
    制造车辆排气系统的气隙绝缘排气弯头的过程

    公开(公告)号:US06343417B1

    公开(公告)日:2002-02-05

    申请号:US09201132

    申请日:1998-11-30

    IPC分类号: B23B1526

    摘要: A process for manufacturing an air-gap-insulated exhaust elbow of a motor vehicle exhaust system achieves in a simple manner a manufacturing of space-saving air-gap-insulating exhaust elbows which is reliable with respect to the process and can be precisely reproduced. The exhaust elbow is joined together from several air-gap-insulated exhaust pipes as well as the pertaining entry flanges and the exit flange, which, by way of an internal high-pressure metal forming process, are shaped in an air-gap-insulating manner from one double pipe respectively. The ends of the air-gap-insulated exhaust pipes which are to be connected with one another are first trimmed while opening the respective air insulating gap and are then fitted into one another. In such case, the ends are shaped such that the fitted connections of the outer pipes and of the inner pipes of the exhaust pipes to be connected are made with play. The mutually connected outer pipe ends of the exhaust pipes are welded together at the point of their fitted connection while forming a circular bead. The connection-free ends of the exhaust pipes to be connected to the cylinder head are fitted together with the respective pertaining entry flanges and are welded together and the connection-free end, which faces away from the cylinder head, of the last one of the branched exhaust pipes arranged in a row side-by-side, is fitted together with the exit flange and is welded to the latter.

    摘要翻译: 机动车辆排气系统的气隙绝缘排气弯头的制造方法以简单的方式实现了节省空气间隔绝缘排气弯头的制造,其对于该方法是可靠的并且可以被精确地再现。 排气弯头由几个气隙绝缘排气管以及相关的入口凸缘和出口凸缘连接在一起,通过内部高压金属成型工艺,排气弯头成形为气隙绝缘 方式分别来自一个双管。 要彼此连接的气隙绝缘排气管的端部首先被修整,同时打开相应的空气绝缘间隙,然后彼此装配。 在这种情况下,端部成形为使得要连接的排气管的外管和内管的配合的连接是通过游隙进行的。 排气管的相互连接的外管端部在形成圆形的胎圈的同时,在其配合的连接处焊接在一起。 要连接到气缸盖的排气管的无连接端与相应的入口凸缘装配在一起,并且焊接在一起,并且面向远离气缸盖的无连接端与最后一个 排列成并排排列的分支式排气管与出口凸缘一起装配并焊接在其上。