成形装置
    2.
    发明申请
    成形装置 审中-公开
    成型设备

    公开(公告)号:WO2016194906A1

    公开(公告)日:2016-12-08

    申请号:PCT/JP2016/066045

    申请日:2016-05-31

    Abstract: 成形装置は、突起付きパイプの外側面に対応する成形面(17a~17c,18a~18c,27a~27c,28a~28c)を有する上型(10)及び下型(20)と、上型(10)及び下型(20)の成形面(17a~17c,18a~18c,27a~27c,28a~28c)同士の間に突起付きパイプを成形するための成形空間を画成するように、上型(10)及び下型(20)を移動させる移動機構と、突起付きパイプの基となる成形材料(100)に気体を供給して成形材料(100)を膨張させる気体供給部とを備え、制御部により、成形空間内で成形材料(100)が突起付きパイプに成形されるように、移動機構による上型(10)及び下型(20)の移動及び気体供給部による成形材料(100)への気体供給を制御する。

    Abstract translation: 成型装置具有:具有对应于具有突起的管的外表面的成型表面(17a-17c,18a-18c,27a-27c,28a-28c)的上模(10)和下模(20) 用于移动上模具(10)和下模具(20)的移动机构,以便限定用于模制成型表面(17a-17c,18a-18c,27a-27c,28a-28c )和下模具(20); 以及气体供给单元,用于通过向形成具有突起的管的基础的成型材料(100)供给气体来扩展成型材料(100)。 控制单元通过移动机构控制上模具(10)和下模具(20)的移动,以及通过气体供给单元向成型材料(100)供给气体,从而形成模塑材料(100) 进入具有在成型空间内的突起的管中。

    一种复杂截面中空构件低压镦胀成形方法

    公开(公告)号:WO2017107741A1

    公开(公告)日:2017-06-29

    申请号:PCT/CN2016/107389

    申请日:2016-11-27

    Abstract: 一种复杂截面中空构件低压镦胀成形方法,步骤如下:选择截面周长大于零件的最小周长而不大于零件的最大截面周长的管坯作为初始管坯(2);将初始管坯(2)放入模具D(4)中,腔内充满流体介质并密封;模具C(3)向模具D(4)移动,至与初始管坯(2)接触时调整初始管坯(2)的内部压力至p1;模具C(3)继续向模具D(4)移动,至截面A处初始管坯(2)的贴模度达到90%-100%时,将初始管坯(2)的内部压力调整至p2;模具C(3)继续向模具D(4)移动,至截面B处初始管坯(2)完全贴模;密封冲头(5)后退,模具C(3)后退,取出零件(1),清理内部传力介质;成形结束。该方法生产效率高、成本低。

    HYDROFORMED COLLAPSIBLE DRIVE SHAFT AND STEERING SHAFT AND METHODS OF MAKING THE SAME
    4.
    发明申请
    HYDROFORMED COLLAPSIBLE DRIVE SHAFT AND STEERING SHAFT AND METHODS OF MAKING THE SAME 审中-公开
    液压可拆卸驱动轴和转向轴及其制造方法

    公开(公告)号:WO01014077A1

    公开(公告)日:2001-03-01

    申请号:PCT/CA2000/000956

    申请日:2000-08-18

    Abstract: A collapsible drive shaft (20) and method of making the same. The collapsible drive shaft (20) includes a tubular member having first (24) and second (22) portions that are integrally formed as a one-piece member. The first portion has splines (26) formed on an exterior surface thereof. The second (22), opposite portion has both outer (Do2) and inner diameters (Di2) that are greater than the outer diameter (Do1) of the first portion. The method includes placing a tubular metal blank into a hydroforming die (70) 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.

    Abstract translation: 可折叠驱动轴(20)及其制造方法。 可折叠驱动轴(20)包括具有整体形成为一体式构件的第一(24)和第二(22)部分的管状构件。 第一部分具有形成在其外表面上的花键(26)。 第二(22)相对部分具有大于第一部分的外径(Do1)的外(Do2)和内径(Di2)。 该方法包括将管状金属坯件放置在具有模腔的液压成形模具(70)中,并通过用液压成形流体对坯料的内部进行加压来使坯料膨胀。 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。

    METHOD OF HYDROFORMING A VEHICLE FRAME COMPONENT
    5.
    发明申请
    METHOD OF HYDROFORMING A VEHICLE FRAME COMPONENT 审中-公开
    液压车架部件的加压方法

    公开(公告)号:WO9851425A3

    公开(公告)日:1999-03-11

    申请号:PCT/US9809693

    申请日:1998-05-12

    Applicant: DANA CORP

    Abstract: A method for hydroforming a closed channel member (10) that allows the perimeter to be increased, but which maintains a uniform wall thickness throughout, includes the initial step of disposing a closed channel member (10), such as a tube, within a first hydroforming die (11) defining a first die cavity (12a, 13a). The inner surface of the first die cavity (12a, 13a) corresponds in cross sectional shape to the outer surface of the tube throughout some or all of the length thereof. A preliminary hydroforming operation is performed at a high pressure to expand the tube into conformance with the first die cavity (12a, 13a). The preliminary expanded tube is disposed within a second hydroforming die (15) defining a second die cavity (16a, 17a). The inner surface of the second die cavity (16a, 17a) 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 low pressure to deform the tube into conformance with the second die cavity (16a, 17a).

    METHOD OF HYDROFORMING A VEHICLE FRAME COMPONENT
    6.
    发明申请
    METHOD OF HYDROFORMING A VEHICLE FRAME COMPONENT 审中-公开
    液压车架部件的加压方法

    公开(公告)号:WO98051425A2

    公开(公告)日:1998-11-19

    申请号:PCT/US1998/009693

    申请日:1998-05-12

    Abstract: A method for hydroforming a closed channel structural member that allows the perimeter thereto 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 preferably corresponds in cross-sectional shape to the outer surface of the tube throughout some or all of the length thereof, but the perimeter of the first die cavity is somewhat larger than the perimeter of the tube enclosed therein. The tube is preferably supported concentrically within the die cavity. Then, 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 increased, 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 essentially unchanged by the final hydroforming operation. Consequently, a relatively larger amount of such expansion can occur than would normally be available if it was necessary to account for variations in the wall thickness of the tube resulting from frictional engagement of the tube with the first hydroforming die.

    Abstract translation: 用于液压成型允许其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封闭通道结构构件(例如管)设置在第一液压成形模具内的初始步骤 限定第一模腔。 第一模腔的内表面优选地在其一部分或全部长度的横截面形状对应于管的外表面,但是第一模腔的周边稍微大于封闭在其中的管的周边 。 管优选地同心地支撑在模腔内。 然后,在相对较高的压力下进行初步的液压成形操作,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横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,所以通过最后的液压成形操作,管的壁厚基本上不变。 因此,如果必须考虑管与第一液压成型模具的摩擦接合导致的管壁的变化,则可能发生相对较大量的这种膨胀。

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