公开(公告)号：US20070271980A1

公开(公告)日：2007-11-29

申请号：US10572317

申请日：2004-08-10

申请人： Kai-Uwe Dudziak ,  Uwe Hardtke

发明人： Kai-Uwe Dudziak ,  Uwe Hardtke

IPC分类号： B21D26/02

CPC分类号： B21D22/06 ,  B21D26/047 ,  B21D35/00 ,  Y10T29/49805

摘要： A method is provided for producing peripherally closed hollow profile section using fluidic internal high pressure. A hollow profile section blank is inserted into a cavity of an internal high pressure forming tool and thereafter being pressed mechanically into an intermediate form approximate to the final form of the hollow profile section, after which, with the tool closed, the intermediate form of the blank is expanded into the final form of the hollow profile section. The blank used in terms of its peripheral length, possesses oversize with respect to the peripheral length of the forming tool cavity. Moreover, the blank material which is excess with respect to the blank material required for the hollow profile section blank to come to bear completely against the cavity of the forming tool is pushed into the blank interior, so as to form an indentation, at the earliest during the pressing operation.

摘要翻译： 提供了一种用于使用流体内部高压来生产外围封闭的中空型材部分的方法。 将中空型材部分坯料插入内部高压成形工具的空腔中，然后被机械压制成近似于中空型材部分的最终形式的中间形式，之后在工具关闭时，中间形状的 坯料膨胀成中空型材部分的最终形式。 根据其周长使用的坯料相对于成形工具腔的周长具有过大的尺寸。 此外，相对于中空型坯部件坯料所需的坯件材料过剩的坯件材料完全抵靠成形工具的腔体被推入坯料内部，以便最早形成压痕 在按压操作期间。

公开(公告)号：US6009734A

公开(公告)日：2000-01-04

申请号：US975364

申请日：1997-11-20

申请人： Helmut Augustin ,  Henning Bloecker ,  Kai-Uwe Dudziak ,  Uwe Hardtke ,  Carsten Rogowski

发明人： Helmut Augustin ,  Henning Bloecker ,  Kai-Uwe Dudziak ,  Uwe Hardtke ,  Carsten Rogowski

IPC分类号： B21D26/02 ,  B21D26/033 ,  B21D26/047 ,  B21D39/08

CPC分类号： B21D17/025 ,  B21D26/033 ,  B21D26/047

摘要： The invention relates to a process and apparatus for manufacturing hollow sections with cross-sectional expansions in end portions thereof. A hollow blank is widened and calibrated by internal high pressure forming by means of a forming tool receiving it, and, after the calibration, is separated in the area of the widening while forming two hollow sections with cross-sectionally widened ends facing one another in the separated position. In order manufacture from a hollow blank hollow sections with the lowest possible reject rate and therefore in a reliable process, which are cross-sectionally widened on the end side by means of high degree for forming, the blank is widened while the forming tool is open and is simultaneously upset to form a rotationally symmetrical bulging hollow section by means of a pressure force which is axially directed from the outside to at least one of the two blank ends.

摘要翻译： 本发明涉及一种用于制造在其端部具有横截面扩展的中空部分的方法和装置。 通过内部高压成型加工空心坯料并通过接收它的成形工具进行校准，并且在校准之后，在加宽区域中分离，同时形成两个具有横截面加宽的端部朝向彼此的中空部分 分离位置。 为了从具有最低可能废品率的中空坯料中空部分制造，因此在可靠的工艺中，通过高度成形在端侧横截面加宽，坯料在成形工具打开时变宽 同时由于从外部轴向地指向两个空白端中的至少一个的压力而同时产生旋转对称的膨胀中空部分。

公开(公告)号：US06793122B2

公开(公告)日：2004-09-21

申请号：US09885443

申请日：2001-06-21

申请人： Uwe Hardtke

发明人： Uwe Hardtke

IPC分类号： B21D3900

CPC分类号： B21C37/151 ,  Y10T29/49805 ,  Y10T29/49908

摘要： A method for the production of reinforced hollow sections with a continuous periphery. In order to provide in a simple manner, hollow sections with selective local reinforcement at points subject to high mechanical loads, an opening is formed in the periphery of the hollow section and a reinforcing plate is inserted into the opening, such that it at least projects into the hollow section. The reinforcing plate is then joined to the hollow section in the region of the edge of the opening.

摘要翻译： 一种用于生产具有连续周边的加强中空部分的方法。 为了提供简单的方式，在具有高机械载荷的点处具有选择性局部加强的中空部分，在中空部分的周边形成开口，并且加强板插入开口中，使得其至少突出 进入中空部分。 然后，加强板在开口边缘的区域中连接到中空部分。

公开(公告)号：US06681611B2

公开(公告)日：2004-01-27

申请号：US10196289

申请日：2002-07-17

申请人： Ulrich Haag ,  Uwe Hardtke ,  Thomas Huelsberg

发明人： Ulrich Haag ,  Uwe Hardtke ,  Thomas Huelsberg

IPC分类号： B21D2602

CPC分类号： B21D28/28 ,  B21D26/035 ,  Y10T83/0596 ,  Y10T83/209 ,  Y10T83/395

摘要： A process for manufacturing holes on the circumference of a hollow section situated in an internal high pressure forming tool uses the action of a punch integrated in the forming tool. A desired breaking point is formed on the hollow section, which follows the edge contour of the operating face of the punch; and after the withdrawal of the punch, the hollow section material surrounded by the desired breaking area, acted upon by internal high pressure, is extracted from the hollow section from the inside to the outside, forming a hole. In order to produce holes on the circumference of hollow sections, in which the shape of the outer circumference of the hollow section is maintained, the wall of the hollow section is weakened to form an unstable thin area. The punch penetrates into the wall of the hollow section at an internal high pressure which corresponds to the forming pressure for forming a hollow blank inserted in the forming tool. When the punch is withdrawn, the internal high pressure, tears the hollow section material surrounded by the thin area out of the hollow section in the withdrawal direction of the punch.

摘要翻译： 在位于内部高压成形工具中的中空部分的圆周上制造孔的方法使用在成型工具中集成的冲头的作用。 在中空部分上形成所需的断裂点，该中空部分跟随冲头的操作面的边缘轮廓; 在冲头拔出之后，由内部高压作用的期望的破碎区域包围的中空部分材料从中间部分从内部向外部抽出，形成一个孔。 为了在保持中空部的外周的形状的中空部的圆周上产生孔，中空部的壁变薄而形成不稳定的薄区域。 冲头以对应于形成插入到成型工具中的中空坯料的成形压力的内部高压力穿入中空部分的壁中。 当冲头取出时，内部的高压力将中空部分材料包围的中空部分材料从冲头的抽出方向从中空部分中脱出。

公开(公告)号：US06484551B1

公开(公告)日：2002-11-26

申请号：US08975170

申请日：1997-11-20

申请人： Ulrich Hagg ,  Uwe Hardtke ,  Thomas Huelsberg

发明人： Ulrich Hagg ,  Uwe Hardtke ,  Thomas Huelsberg

IPC分类号： B21D2602

CPC分类号： B21D28/28 ,  B21D26/035 ,  Y10T83/0596 ,  Y10T83/209 ,  Y10T83/395

摘要： A process for manufacturing holes on the circumference of a hollow section situated in an internal high pressure forming tool uses the action of a punch integrated in the forming tool. A desired breaking point is formed on the hollow section, which follows the edge contour of the operating face of the punch; and after the withdrawal of the punch, the hollow section material surrounded by the desired breaking area, acted upon by internal high pressure, is extracted from the hollow section from the inside to the outside, forming a hole. In order to produce holes on the circumference of hollow sections, in which the shape of the outer circumference of the hollow section is maintained, the wall of the hollw section is weakened to form an unstable thin area. The punch penetrates into the wall of the hollow section at an internal high pressure which corresponds to the forming pressure for forming a hollow blank inserted in the forming tool. When the punch is withdrawn, the internal high pressure, tears the hollow section material surrounded by the thin area out of the hollow section in the withdrawal direction of the punch.

摘要翻译： 在位于内部高压成形工具中的中空部分的圆周上制造孔的方法使用在成型工具中集成的冲头的作用。 在中空部分上形成所需的断裂点，该中空部分跟随冲头的操作面的边缘轮廓; 在冲头拔出之后，由内部高压作用的期望的破碎区域包围的中空部分材料从中间部分从内部向外部抽出，形成一个孔。 为了在保持中空部分的外周的形状的中空部分的圆周上产生孔，使得部分的壁被削弱以形成不稳定的薄区域。 冲头以对应于形成插入到成型工具中的中空坯料的成形压力的内部高压力穿入中空部分的壁中。 当冲头取出时，内部的高压力将中空部分材料包围的中空部分材料从冲头的抽出方向从中空部分中脱出。

公开(公告)号：US5996455A

公开(公告)日：1999-12-07

申请号：US974758

申请日：1997-11-20

申请人： Ulrich Haag ,  Uwe Hardtke ,  Thomas Hulsberg

发明人： Ulrich Haag ,  Uwe Hardtke ,  Thomas Hulsberg

IPC分类号： B21D26/02 ,  B21D28/28 ,  B21D28/18

CPC分类号： B21D28/28 ,  Y10T83/0457 ,  Y10T83/0596 ,  Y10T83/395

摘要： A method and a device for producing holes in the circumference of a hollow shape, with a wall piece being separated as a slug from the hollow shape in an internal high-pressure mold and being jammed without projecting relative to the outer circumference of the hollow shape in a previously produced hole. In order to remove the slug produced during punching in simple fashion from the internal high-pressure mold, the separated slug is jammed at a fluid pressure that is reduced relative to an internal high fluid pressure without loss via a punch and can separate the slug following removal of the finished hollow shape from the internal high-pressure mold, from the hollow shape, finally clearing the hole.

摘要翻译： 一种用于在中空形状的圆周上产生孔的方法和装置，其中壁件在内部高压模具中与空心形状分离成塞子并且相对于中空形状的外周不会突出而卡住 在以前生产的孔中。 为了以简单的方式从内部高压模具中除去在冲压期间产生的塞子，分离的塞子以相对于内部高流体压力而降低的流体压力被卡住，而不会通过冲头损失，并且可以分离下面的塞子 从内部高压模具中取出成品的中空形状，从中空形状，最后清除孔。

公开(公告)号：US20070040345A1

公开(公告)日：2007-02-22

申请号：US10560382

申请日：2004-06-05

申请人： Uwe Hardtke ,  Rene Kratz ,  Stefan Schwarz ,  Ulrich Zech

发明人： Uwe Hardtke ,  Rene Kratz ,  Stefan Schwarz ,  Ulrich Zech

IPC分类号： B60G7/00 ,  B60G11/00 ,  F16F1/26

CPC分类号： B60G9/02 ,  B60G2200/342

摘要： A Watts strut having a log strut body with a bearing bush arranged at one axial end thereof The strut body is produced by hydroforming, and is twisted on itself about a longitudinal axis.

摘要翻译： 具有具有布置在其轴向端部处的轴承衬套的对数支柱主体的瓦特支柱。支柱主体通过液压成形而产生，并且围绕纵向轴线自身扭转。

公开(公告)号：US06434989B1

公开(公告)日：2002-08-20

申请号：US09883982

申请日：2001-06-20

申请人： Uwe Hardtke

发明人： Uwe Hardtke

IPC分类号： B21D2828

CPC分类号： B21D28/28 ,  Y10T29/49805 ,  Y10T83/0591

摘要： A method and a device for producing leadthroughs on hollow profiles acted upon by a high fluidic pressure in an internal high-pressure forming tool. Dome-like secondary shaped elements are formed outwards in a radial direction from this hollow profile by the fluid pressurizing. The secondary shaped elements are then reverse drawn into the interior of the hollow profile by a punch while held at the prevailing internal high pressure, whereupon, to open the leadthrough, a punched slug is cut out of the base of the reverse-drawn secondary shaped element by the punch. To ensure the process reliability when producing the leadthrough even in the case of a hollow-profile material having low formability and to retain the strength of the hollow profile in the transition region to the leadthrough, in each case a secondary shaped element is formed out of the hollow profile at two opposite locations. After the forming, the secondary shaped elements are each reverse drawn into the hollow profile interior by a punch in such a way that the bases come to bear against one another inside the hollow profile in the final state of the reverse drawing. The punched slug is severed from the respective base by one punch plunging into the other punch.

公开(公告)号：US06430981B1

公开(公告)日：2002-08-13

申请号：US09884449

申请日：2001-06-20

申请人： Uwe Hardtke

发明人： Uwe Hardtke

IPC分类号： B21D2828

CPC分类号： B21D28/28 ,  Y10T29/49805

摘要： A method and a device for producing leadthroughs on a hollow profile useing a high fluidic pressure in an internal high-pressure forming tool. Dome-like secondary shaped elements are formed outwards in a radial direction from this hollow profile by the fluidic pressurizing. The secondary shaped elements are then reverse drawn into the interior of the hollow profile by punches at the prevailing internal high pressure. A punched slug is cut out of the base of the reverse-drawn secondary shaped element by the punch. A bent-in margin of the secondary shaped element lying next to the cutout is then straightened by the punch in a displacing movement directed further inwards by being pressed against a hollow-profile wall. To ensure the process reliability when producing the leadthrough even in the case of a hollow-profile material having low formability and to retain the strength of the hollow profile in the transition region to the leadthrough, it is provided in each case to form a secondary shaped element out of the hollow profile at two opposite locations, to reverse draw the secondary shaped elements after the forming, in each case into the hollow-profile interior by a punch in such a way that the bases are at a distance from one another in a final state of the reverse drawing, and to sever the punched slug from the respective base by interaction between the fluidic internal high pressure and an encircling cutting edge of the punch.