公开(公告)号：US20180078988A1

公开(公告)日：2018-03-22

申请号：US15829380

申请日：2017-12-01

申请人： SUMITOMO HEAVY INDUSTRIES, LTD.

发明人： Masayuki Ishizuka ,  Norieda Ueno ,  Masayuki Saika

IPC分类号： B21D26/047

CPC分类号： B21D26/047 ,  B21D15/03 ,  B21D26/033 ,  B21D26/039 ,  B21D26/041 ,  B21D26/043

摘要： A forming device includes: an upper die and a lower die having forming surfaces corresponding to outer surfaces of a pipe with protrusions; a moving mechanism that moves the upper die and the lower die such that a forming space for forming the pipe with protrusions is defined between the forming surfaces of the upper die and the lower die; and a gas supply unit that supplies gas to a forming material which is the base of the pipe with protrusions to expand the forming material. A control unit controls the movement of the upper die and the lower die by the moving mechanism and the supply of gas to the forming material by the gas supply unit such that the forming material is formed into the pipe with protrusions in the forming space.

公开(公告)号：US09505048B2

公开(公告)日：2016-11-29

申请号：US13743046

申请日：2013-01-16

申请人： INDUSTRIAL TECHNOLOGY RESEARCH INSTITUTE

发明人： Yeong-Maw Hwang ,  Min-Tsang Chen

IPC分类号： B21D26/043 ,  B21D26/033 ,  B21D26/047

CPC分类号： B21D26/043 ,  B21D26/033 ,  B21D26/047

摘要： A hydroforming mold includes a lower die holder, a lower die, a pair of upper dies, a back pressure die, an upper die holder, and a pair of axial feed push rod assemblies. The lower die is disposed in a groove base of the lower die holder. A lower mold cavity for receiving a pipe blank is provided on the lower die. The two upper dies are clamped on the lower die, and can move along the top portion of the lower die. The back pressure die is disposed between the two upper dies. The axial feed push rod assemblies are respectively sealed at an end portion of the pipe blank and the two upper dies. Each of the axial feed push rod assemblies has a runner for introducing fluid into the pipe blank, so as to axially push the two upper dies to move close to each other.

摘要翻译： 液压成型模具包括下模夹持器，下模，一对上模，背压模，上模夹持器和一对轴向进给推杆组件。 下模设置在下模座的槽底部。 用于接收管坯的下模腔设置在下模上。 两个上模夹在下模上，并可沿下模的顶部移动。 背压模设置在两个上模之间。 轴向进给推杆组件分别密封在管坯和两个上模的端部处。 每个轴向进给推杆组件具有用于将流体引入到管坯中的流道，以便轴向推动两个上模移动靠近彼此。

公开(公告)号：US08381560B2

公开(公告)日：2013-02-26

申请号：US12450927

申请日：2008-04-18

申请人： Masaaki Mizumura ,  Yukihisa Kuriyama

发明人： Masaaki Mizumura ,  Yukihisa Kuriyama

IPC分类号： B21D39/20

CPC分类号： B21D26/033 ,  B21D26/043

摘要： The present invention provides a hydroforming method able to increase the expansion ratio to obtain a complicated shape hydroformed product and able to reduce the number of steps of work, that is, a hydroforming method loading a metal pipe into a divided mold, clamping the mold, then applying an internal pressure and pushing force in the pipe axial direction to said metal pipe, comprising, in a first hydroforming step, expanding said metal pipe in one direction of said metal pipe cross-section to obtain an intermediate product having a circumferential length of 90% to 100% of the circumferential length of the product shape in all of the expanded part in the pipe axial direction and having a height greater than the height of the product in said one direction and at least part of the pipe axial direction, then, in a second hydroforming step, reducing the height in the one direction of said intermediate product in all or part of the pipe axial direction while shaping the product to the final product shape. Further, in the case of a shape including bending, a bending step is performed between the above first hydroforming step and second hydroforming step.

摘要翻译： 本发明提供一种液压成型方法，其能够增加膨胀比以获得复杂形状的液压成型产品，并且能够减少工作步骤的数量，即将金属管装入分模中的液压成形方法，夹紧模具， 然后在所述金属管的管轴向上施加内部压力和推力，包括在第一液压成形步骤中，使所述金属管沿所述金属管横截面的一个方向膨胀，以获得周向长度为 在管轴方向上的所有扩张部分中的产品形状的圆周长度的90％至100％，并且具有高于所述一个方向上的产品的高度和管轴向方向的至少一部分的高度，然后 在第二液压成形步骤中，在产品全部或部分管轴向方向上减小所述中间产品的一个方向的高度，同时将产品成形为fi nal产品形状。 此外，在包括弯曲的形状的情况下，在上述第一液压成形步骤和第二液压成形步骤之间执行弯曲步骤。

公开(公告)号：US20100186473A1

公开(公告)日：2010-07-29

申请号：US12452676

申请日：2008-07-18

申请人： Masaaki Mizumura ,  Koichi Sato ,  Yukihisa Kuriyama

发明人： Masaaki Mizumura ,  Koichi Sato ,  Yukihisa Kuriyama

IPC分类号： B21J5/04

CPC分类号： B21D26/041 ,  B21D22/025 ,  B21D26/033 ,  B21D26/043 ,  Y10T29/49805

摘要： The object is to raise the yield by greatly eliminating the disposed amounts of the tube ends, prevent wrinkles due to closing the mold while applying internal pressure, cutting the plurality of steps of hydroforming and pre-processing of the tube ends, cutting the mold costs by simplifying the mold mechanism, and obtaining a hydroformed product formed with a flange along its entire length.For this reason, the present invention provides a hydroforming method which places a metal tube to a lower mold in the state with the tube ends sticking out from it and injects a pressurizing fluid into the metal tube through the inside of a seal punch and gradually presses seal punches against tube ends of the metal tube to apply a predetermined pressing force and fill the inside of the metal tube with the pressurizing fluid to apply a predetermined internal pressure, next, in the state with the internal pressure and pressing force applied, lowers the upper mold and closes the mold so as to deform the tube and end the processing in the state with the tube ends sticking out from the mold, and, further, boosting the internal pressure in the metal tube after closing the mold and ending the forming operation and a hydroformed product processed using these methods and having a flange across the entire length in the longitudinal direction.

摘要翻译： 目的是通过大大消除管端部的设置量来提高产量，防止由于在施加内压的同时关闭模具而产生的褶皱，切割多个步骤的液压成型和管端的预处理，切割模具成本 通过简化模具机构，并获得沿其整个长度形成有凸缘的液压成型产品。 为此，本发明提供了一种液压成形方法，其中，在管端部从其上伸出的状态下将金属管放置在下模上，并通过密封冲头的内部将加压流体注入金属管，并逐渐压入 对金属管的管端密封冲压以施加预定的压力，并用加压流体填充金属管的内部以施加预定的内部压力，接下来，在施加内部压力和压力的状态下，降低 上模并关闭模具以使管变形，并且在管端从模具伸出的状态下结束处理，并且进一步在关闭模具之后提高金属管内的压力并结束成形操作 以及使用这些方法加工的液压成型产品，并且在纵向方向上在整个长度上具有凸缘。

公开(公告)号：US07661283B2

公开(公告)日：2010-02-16

申请号：US11911614

申请日：2006-12-22

申请人： Izuru Hori ,  Daisuke Yamamoto ,  Keishi Okunaka ,  Yuichi Nagai ,  Kouki Mizutani

发明人： Izuru Hori ,  Daisuke Yamamoto ,  Keishi Okunaka ,  Yuichi Nagai ,  Kouki Mizutani

IPC分类号： B21D26/02 ,  B21D51/16

CPC分类号： B21D35/00 ,  B21C37/155 ,  B21D26/039 ,  B21D26/043 ,  B21D43/06 ,  Y10T29/49805

摘要： A bulging apparatus has a heating station, a tube expanding station, a preforming station, and a main forming station. A straight tube as a workpiece is gripped by first holding mechanisms or second holding mechanisms, and delivered between the stations as the first holding mechanisms or second holding mechanisms are displaced. During a preforming process and a main holding process, both the first holding mechanisms and second holding mechanisms can be lifted and lowered vertically and can be moved horizontally.

摘要翻译： 膨胀装置具有加热站，扩管站，预成型站和主成型站。 作为工件的直管由第一保持机构或第二保持机构夹持，并且当第一保持机构或第二保持机构移位时，在工位之间传送。 在预成型工艺和主保持工艺期间，第一保持机构和第二保持机构都可以垂直地提升和降低，并且可以水平移动。

公开(公告)号：US20080307848A1

公开(公告)日：2008-12-18

申请号：US11911614

申请日：2006-12-22

申请人： Izuru Hori ,  Daisuke Yamamoto ,  Keishi Okunaka ,  Yuichi Nagai ,  Kouki Mizutani

发明人： Izuru Hori ,  Daisuke Yamamoto ,  Keishi Okunaka ,  Yuichi Nagai ,  Kouki Mizutani

IPC分类号： B21D39/20

CPC分类号： B21D35/00 ,  B21C37/155 ,  B21D26/039 ,  B21D26/043 ,  B21D43/06 ,  Y10T29/49805

摘要： A bulging apparatus has a heating station, a tube expanding station, a preforming station, and a main forming station. A straight tube as a workpiece is gripped by first holding mechanisms or second holding mechanisms, and delivered between the stations as the first holding mechanisms or second holding mechanisms are displaced. During a preforming process and a main holding process, both the first holding mechanisms and second holding mechanisms can be lifted and lowered vertically and can be moved horizontally.

摘要翻译： 膨胀装置具有加热站，扩管站，预成型站和主成型站。 作为工件的直管由第一保持机构或第二保持机构夹持，并且当第一保持机构或第二保持机构移位时，在工位之间传送。 在预成型工艺和主保持工艺期间，第一保持机构和第二保持机构都可以垂直地提升和降低，并且可以水平移动。

公开(公告)号：US20070166428A1

公开(公告)日：2007-07-19

申请号：US10573253

申请日：2004-08-20

申请人： Helmut Augustin ,  Kai-Uwe Dudziak ,  Stefan Schwarz

发明人： Helmut Augustin ,  Kai-Uwe Dudziak ,  Stefan Schwarz

IPC分类号： B29C45/18

CPC分类号： B21D26/045 ,  B21D26/043

摘要： An internal high pressure forming installation is provided, in which a forming tool with upper and lower dies form a forming chamber for pressure forming a closed hollow profile. The installation has at least one axial punch which can seal the hollow profile be sealed at one end and apply an internal high pressure to expand the hollow profile. The installation includes a rapid filling device which can pre-fill the hollow profile with pressurized fluid when the axial punch is drawn back from the hollow profile end. In order for the production of hollow profiles to be suitable for mass production in a simple manner, the filling attachment is transported on the axial punch which brings the filling attachment into a contact position on the forming tool in order to fill it and, after the filling, guides it into a position remote from the forming tool.

摘要翻译： 提供一种内部高压成型设备，其中具有上模和下模的成形工具形成用于压力形成封闭中空型材的成形室。 该装置具有至少一个轴向冲头，其能够密封中空轮廓，以在一端密封，并施加内部高压以膨胀中空轮廓。 该装置包括快速填充装置，当轴向冲头从中空轮廓端部拉回时，该快速填充装置可以用加压流体预填充中空型材。 为了以简单的方式生产中空型材以适合批量生产，填充附件在轴向冲头上传送，使填充附件进入成形工具的接触位置以便填充它，并且在 填充，将其引导到远离成形工具的位置。

公开(公告)号：US20040094244A1

公开(公告)日：2004-05-20

申请号：US10613642

申请日：2003-07-03

申请人： Hot Metal Gas Forming Intellectual Property, Inc., a Michigan corporation

发明人： William C. Dykstra ,  George D. Pfaffmann ,  Xin Wu

IPC分类号： C21D009/08

CPC分类号： A61F13/15203 ,  A61F2013/1539 ,  B21D26/033 ,  B21D26/039 ,  B21D26/041 ,  B21D26/043 ,  B21D26/045 ,  B21D26/055 ,  B21D26/059 ,  B21D37/16 ,  B21D53/88 ,  Y10S72/709 ,  Y10T29/49805

摘要： A method of forming an elongated tubular blank into a tubular structural component having a predetermined outer configuration, the method comprising: providing a shape imparting shell formed from a low permeability, rigid material which includes an inner surface defining the predetermined shape, plugging the open ends of the tubular blank, placing the plugged blank into the shell, and forming the tubular blank into the tubular component by inductively heating axial portions of the blank by axially spaced conductors adjacent the shell while or before forcing gas at a high pressure into the plugged blank until the blank conforms to at least a portion of the inner surface of the shell to form the structural component.

摘要翻译： 一种将细长管状坯料形成为具有预定外部构型的管状结构部件的方法，所述方法包括：提供由低渗透刚性材料形成的形状赋予壳体，所述形状赋予壳体包括限定所述预定形状的内表面， 的管状坯料，将堵塞的坯料放入壳体中，并且通过在迫使气体高压进入堵塞空白期间或之前通过与壳体相邻的轴向间隔开的导体感应加热空腔的轴向部分而将管状坯料形成管状部件 直到坯料符合壳体的内表面的至少一部分以形成结构部件。

公开(公告)号：US4827747A

公开(公告)日：1989-05-09

申请号：US051697

申请日：1987-05-20

申请人： Kenichi Okada ,  Hiroshi Asao ,  Keiichi Nakamura

发明人： Kenichi Okada ,  Hiroshi Asao ,  Keiichi Nakamura

IPC分类号： B21D15/10 ,  B21D26/02 ,  B21D26/043 ,  B21D26/047

CPC分类号： B21D26/047 ,  B21D15/10 ,  B21D26/043

摘要： After a metallic cylindrical tube is bulged to form a bellows with a circular cross section, this bellows is ovalized to form a bellows with an oval cross section. For this reason, an inexpensive round tube (cylindrical tube) can be used as the material for a bellows with an oval cross section and it is unnecessary to use an expensive oval tube. Accordingly, a bellows with an oval cross section can be produced at low cost.

摘要翻译： 在金属圆柱形管被膨胀以形成具有圆形横截面的波纹管之后，该波纹管被椭圆形以形成具有椭圆形截面的波纹管。 为此，可以使用廉价的圆管（圆柱形管）作为具有椭圆形横截面的波纹管的材料，并且不需要使用昂贵的椭圆管。 因此，可以低成本地制造具有椭圆形横截面的波纹管。

公开(公告)号：US4364251A

公开(公告)日：1982-12-21

申请号：US224023

申请日：1981-01-12

申请人： Masao Nishihara ,  Yoshinori Fukui ,  Yoshio Kitamura ,  Yoshiyuki Kamikawa ,  Haruki Azuma

发明人： Masao Nishihara ,  Yoshinori Fukui ,  Yoshio Kitamura ,  Yoshiyuki Kamikawa ,  Haruki Azuma

IPC分类号： B21D26/02 ,  B21D26/041 ,  B21D22/10

CPC分类号： B21D26/045 ,  B21D26/043

摘要： Disclosed is a method and apparatus for cold-working annular workpieces by applying thereto an internal fluid pressure to cause an enlargement of the diameter thereof through plastic deformation, in which the openings at opposite ends of an annular workpiece are closed by a pair of presser plates through packings which are radially expansible along with the annular workpiece. The contacting surface pressure of the packings and presser plates are controlled to a predetermined value by an arithmetic unit operating on detected values of a main pressure acting internally on the annular workpiece, an auxiliary pressure pressingly holding the presser plates against the respective packings and varitions in the shape of the annular workpiece undergoing the plastic deformation.

摘要翻译： 公开了一种用于冷加工环形工件的方法和装置，其中通过施加内部流体压力以通过塑性变形使其直径扩大，其中环形工件的相对端处的开口被一对压板封闭 通过与环形工件一起可径向膨胀的填料。 填料和压板的接触表面压力由操作在内部作用在环形工件上的主压力的检测值上的运算单元控制到一个预定值，辅助压力将压板压紧在相应的填料上， 环形工件的形状经历塑性变形。