METHOD OF MANUFACTURING A TUBE AND A MACHINE FOR USE THEREIN
    1.
    发明公开
    METHOD OF MANUFACTURING A TUBE AND A MACHINE FOR USE THEREIN 审中-公开
    制造管的方法和用于其中的机器

    公开(公告)号:EP3233318A1

    公开(公告)日:2017-10-25

    申请号:EP15871064.0

    申请日:2015-12-17

    IPC分类号: B21C23/08 B21C23/21 B21K1/26

    摘要: A method is used to manufacture a drawn tube having a hollow low interior for housing an axle shaft. The method includes the steps of placing a billet into a first die assembly and pressing the billet into the first die to producing a pre-formed billet. The method also includes the steps of moving the pre-formed billet from the first die assembly to a second die assembly and pressing the pre-formed billet into the second die assembly to produce an extruded tube. The method further includes the steps of moving the extruded tube from the second die assembly to a third die assembly and pressing the extruded tube into the third die assembly to further elongate the extruded tube and decrease the thickness of the wall of the extruded tube to of from about 3 to about 18 millimeters to produce the drawn tube having the yield strength of at least 750 MPa.

    摘要翻译: 使用一种方法来制造具有用于容纳车轴的中空内部的管。 该管形成在具有固定基座和可朝固定基座移动的单个压制结构的单个机器中。 单机包括耦合到固定基座的第一和第二模组件以及耦合到单个压制结构的第一和第二心轴。 该方法包括以下步骤:将坯料放入第一模具组件中;将坯料压入具有第一模具的第一模具组件中以产生预成形的坯料;以及将预成形的坯料从第一模具组件移动到第二模具组件 模具组装。 该方法还包括以下步骤:用第二心轴将预先形成的坯料压入第二模具组件以拉伸预成形的坯料并在其中形成中空内部以产生挤压管。

    METHOD OF MANUFACTURING A TUBE AND A MACHINE FOR USE THEREIN
    2.
    发明公开
    METHOD OF MANUFACTURING A TUBE AND A MACHINE FOR USE THEREIN 审中-公开
    制造管的方法和用于其中的机器

    公开(公告)号:EP3234203A1

    公开(公告)日:2017-10-25

    申请号:EP15871056.6

    申请日:2015-12-17

    IPC分类号: C21D8/10 B21C23/08 B21C23/21

    摘要: A method is used to manufacture a drawn tube having a hollow low interior for housing an axle shaft. The method includes the steps of placing a billet into a first die assembly and pressing the billet into the first die to producing a pre-formed billet. The method also includes the steps of moving the pre-formed billet from the first die assembly to a second die assembly and pressing the pre-formed billet into the second die assembly to produce an extruded tube. The method further includes the steps of moving the extruded tube from the second die assembly to a third die assembly and pressing the extruded tube into the third die assembly to further elongate the extruded tube and decrease the thickness of the wall of the extruded tube to of from about 3 to about 18 millimeters to produce the drawn tube having the yield strength of at least 750 MPa.

    摘要翻译: 使用一种方法来制造具有用于容纳车轴的中空内部的拉拔管。 该方法包括以下步骤:将坯料放入第一模具组件中并将坯料压入第一模具中以生产预成形的坯料。 该方法还包括将预先形成的坯料从第一模具组件移动到第二模具组件并将预先形成的坯料压入第二模具组件以产生挤压管的步骤。 该方法还包括以下步骤:将挤出管从第二模具组件移动到第三模具组件并将挤出管挤压到第三模具组件中以进一步拉长挤出管并将挤出管壁的厚度减小到 从约3至约18毫米,以产生具有至少750MPa的屈服强度的拉拔管。