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    Hydroformed collapsible driveshaft and steering shaft and methods of making the same
    1.
    发明授权
    Hydroformed collapsible driveshaft and steering shaft and methods of making the same 有权
    液压成型的可折叠传动轴和转向轴及其制造方法

    公开(公告)号：US06543266B1

    公开(公告)日：2003-04-08

    申请号：US09639116

    申请日：2000-08-16

    申请人： Federico G. Jaekel

    发明人： Federico G. Jaekel

    IPC分类号： B21D2210

    CPC分类号： F16F7/125 ,  B21D15/03 ,  B62D1/192 ,  F16C3/03 ,  F16F7/123 ,  Y10T464/50

    摘要： A collapsible driveshaft and method of making the same. The collapsible driveshaft includes a tubular member having first and second portions that are integrally formed as a one-piece member. The first portion has splines formed on an exterior surface thereof. The second, opposite portion has both outer and inner diameters that are greater than the outer diameter of the first portion. The method includes placing a tubular metal blank into a hydroforming die having a die cavity and expanding the blank by pressurizing the interior of the blank with hydroforming fluid. During the hydroforming process, the first portion of the blank is expanded to form splines while the second portion is expanded to form inner and outer diameters that are greater than the outer diameter of the first portion.

    摘要翻译： 一种可折叠的驱动轴及其制造方法。 可折叠驱动轴包括具有整体形成为单件构件的第一和第二部分的管状构件。 第一部分具有形成在其外表面上的花键。 第二相对部分具有大于第一部分的外径的外径和内径。 该方法包括将管状金属坯料放置在具有模腔的液压成型模具中，并且通过用液压成形流体对坯件的内部加压来使坯料膨胀。 在液压成型过程中，坯件的第一部分被膨胀以形成花键，而第二部分被膨胀以形成大于第一部分的外径的内径和外径。

    FORMING APPARATUS
    2.
    发明申请
    FORMING APPARATUS 审中-公开

    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.

    METHOD OF FORMING A FLANGED TUBULAR MEMBER IN HYDROFORMING
    3.
    发明申请
    METHOD OF FORMING A FLANGED TUBULAR MEMBER IN HYDROFORMING 有权
    在压铸中形成法兰管状构件的方法

    公开(公告)号：US20100186477A1

    公开(公告)日：2010-07-29

    申请号：US12360584

    申请日：2009-01-27

    申请人： Bruno Barthelemy ,  Ramakrishna P. Koganti ,  Lawrence Anderson Queener

    发明人： Bruno Barthelemy ,  Ramakrishna P. Koganti ,  Lawrence Anderson Queener

    IPC分类号： B21C37/30

    CPC分类号： B21D26/033 ,  B21D15/03 ,  B21D22/025

    摘要： A method of forming a flanged tubular member includes the steps of: positioning a tubular blank in a die; applying nominal pressure; closing the dies; and increasing pressure within the blank, thereby converting the tubular blank to a hydroformed member having the flange and a hem with a cavity therein. The die halves define: a die tubular cavity portion; a die hem cavity portion; and a die flange cavity portion. Upon closing the die halves with nominal pressure and then increasing pressure, (1) the blank is deformed within the die tubular cavity portion; (2) the flange is defined from a portion of the blank in the die flange cavity portion; and (3) at least an intermediate hem is defined in the die hem cavity portion.

    摘要翻译： 一种形成法兰管状构件的方法包括以下步骤：将管状坯料定位在模具中; 施加公称压力; 关闭模具; 并且增加坯料内的压力，从而将管状坯料转变成具有凸缘的液压成形构件和其中具有空腔的边缘。 半模定义：管状模腔部分; 冲模腔部分; 和模具凸缘空腔部分。 在公称压力关闭模具半部然后增加压力时，（1）坯料在模具管状空腔部分内变形; （2）凸缘由模具凸缘空腔部分中坯料的一部分限定; 和（3）至少一个中间卷边限定在冲模腔部分中。

    Method of forming a flanged tubular member in hydroforming
    4.
    发明授权
    Method of forming a flanged tubular member in hydroforming 有权
    在液压成型中形成法兰管状部件的方法

    公开(公告)号：US08171769B2

    公开(公告)日：2012-05-08

    申请号：US12360584

    申请日：2009-01-27

    申请人： Bruno Barthelemy ,  Ramakrishna P. Koganti ,  Lawrence Anderson Queener

    发明人： Bruno Barthelemy ,  Ramakrishna P. Koganti ,  Lawrence Anderson Queener

    IPC分类号： B21D15/03 ,  B21D22/02

    CPC分类号： B21D26/033 ,  B21D15/03 ,  B21D22/025

    摘要： A method of forming a flanged tubular member includes the steps of: positioning a tubular blank in a die; applying nominal pressure; closing the dies; and increasing pressure within the blank, thereby converting the tubular blank to a hydroformed member having the flange and a hem with a cavity therein. The die halves define: a die tubular cavity portion; a die hem cavity portion; and a die flange cavity portion. Upon closing the die halves with nominal pressure and then increasing pressure, (1) the blank is deformed within the die tubular cavity portion; (2) the flange is defined from a portion of the blank in the die flange cavity portion; and (3) at least an intermediate hem is defined in the die hem cavity portion.

    摘要翻译： 一种形成法兰管状构件的方法包括以下步骤：将管状坯料定位在模具中; 施加公称压力; 关闭模具; 并且增加坯料内的压力，从而将管状坯料转变成具有凸缘的液压成形构件和其中具有空腔的边缘。 半模定义：管状模腔部分; 冲模腔部分; 和模具凸缘空腔部分。 在公称压力关闭模具半部然后增加压力时，（1）坯料在模具管状空腔部分内变形; （2）凸缘由模具凸缘空腔部分中坯料的一部分限定; 和（3）至少一个中间卷边限定在冲模腔部分中。

    Self-aligning non-pinching hydroforming dies
    6.
    发明授权
    Self-aligning non-pinching hydroforming dies 失效
    自对准非夹紧液压成型模具

    公开(公告)号：US06584821B1

    公开(公告)日：2003-07-01

    申请号：US10123662

    申请日：2002-04-16

    申请人： Mircea M Ghiran ,  Spyros Pete Mellas ,  Paul C Oberski

    发明人： Mircea M Ghiran ,  Spyros Pete Mellas ,  Paul C Oberski

    IPC分类号： B21D2602

    CPC分类号： B21D37/12 ,  B21D15/03 ,  B21D26/039 ,  B21D26/047 ,  Y10T29/49805

    摘要： A pair of self-aligning non-pinching hydroforming dies have fingers and slots which are operable during closure of the dies on a tubular part to effect precise alignment of the dies as they are pressed together to form a hydroforming cavity about the part so that the part is not pinched between mating surfaces of the dies during their closure on the part. The fingers are further capable of mechanically straightening and/or bending the part, if need be, to prevent pinching of the part during die closure. The fingers are also capable of mechanically forming a round tubular part to a non-round cross-section region of the die cavity as the dies close to help form the part as well as prevent pinching of this section. With all such mechanical forming operations by the action of the fingers on the part performed prior to the hydroforming of the part in the die cavity.

    摘要翻译： 一对自对准非夹持液压成形模具具有指状物和狭槽，其可在模具封闭管状部件期间操作，以在模具被压在一起时精确对准模具，以在该部件周围形成液压成形腔体， 在模具闭合部件之间，模具的配合表面之间不会夹紧零件。 如果需要，手指还能够机械矫正和/或弯曲部件，以防止在模具闭合期间部件的夹紧。 手指还能够在模具的非圆形横截面区域机械地形成圆形管状部件，因为模具靠近以帮助形成该部件以及防止该部分的挤压。 通过手指在模具腔中的部件的液压成形之前执行的部件的作用进行所有这样的机械成形操作。

    Method of hydroforming a vehicle frame component
    10.
    发明授权
    Method of hydroforming a vehicle frame component 失效
    液压成型车架部件的方法

    公开(公告)号：US6016603A

    公开(公告)日：2000-01-25

    申请号：US76683

    申请日：1998-05-12

    申请人： Richard A. Marando ,  Thomas R. Sanko ,  Eric M. Schrack

    发明人： Richard A. Marando ,  Thomas R. Sanko ,  Eric M. Schrack

    IPC分类号： B21D26/033 ,  B62D25/00 ,  B23P11/02

    CPC分类号： B21D26/033 ,  B21D15/03 ,  B62D25/00 ,  B60G2206/012 ,  B60G2206/8107 ,  Y10T29/49622 ,  Y10T29/49805 ,  Y10T29/4994

    摘要： A method for hydroforming a closed channel structural member that allows the perimeter to be increased, but which maintains a relatively uniform wall thickness throughout, includes the initial step of disposing a closed channel structural member, such as a tube, within a first hydroforming die defining a first die cavity. The inner surface of the first die cavity corresponds in cross sectional shape to the outer surface of the tube, but the perimeter of the first die cavity is somewhat larger than the perimeter of the tube enclosed therein. A preliminary hydroforming operation is then performed at a relatively high pressure to expand the tube into conformance with the first die cavity. Throughout most of this expansion, the outer surface of the tube does not engage the inner surface of the die cavity. As a result, as the perimeter of the tube is increase, the wall thickness thereof is decreased uniformly. The preliminarily expanded tube is then disposed within a second hydroforming die defining a second die cavity. The inner surface of the second die cavity corresponds in cross sectional shape to the desired final shape for the tube. When the second hydroforming die is closed, a final hydroforming operation is performed at a relatively low pressure to deform the tube into conformance with the second die cavity. Because the perimeter of the tube is approximately equal to the perimeter of the second die cavity, the wall thickness of the tube is unchanged by the final hydroforming operation.

    摘要翻译： 用于液压成型允许周边增加但是保持相对均匀的壁厚的封闭通道结构构件的方法包括将闭合通道结构构件（例如管）设置在第一液压成形模具内的初始步骤，所述第一液压成形模具限定 第一模腔。 第一模腔的内表面的横截面形状对应于管的外表面，但是第一模腔的周边稍大于封装在其中的管的周长。 然后在相对较高的压力下进行初步液压成形操作，以将管扩大成与第一模腔一致。 在大部分膨胀过程中，管的外表面不与模腔的内表面接合。 结果，随着管的周长增加，其壁厚均匀地降低。 然后将预先膨胀的管子设置在限定第二模腔的第二液压成形模具内。 第二模腔的内表面的截面形状对应于管的期望的最终形状。 当第二液压成形模具闭合时，在相对低的压力下进行最终的液压成形操作，以使管变形成与第二模腔一致。 因为管的周边大致等于第二模腔的周长，所以通过最终的液压成形操作，管的壁厚不变。