Oval cross section metal tube producing device and producing method
    1.
    发明申请
    Oval cross section metal tube producing device and producing method 失效
    椭圆截面金属管生产装置及其制造方法

    公开(公告)号:US20050247097A1

    公开(公告)日:2005-11-10

    申请号:US10522217

    申请日:2003-07-25

    摘要: It is an object of the present invention to provide a novel aluminum tube of an oval cross section that has a wider range of applications and added values. A disk-shaped metal slug (21) is impact-extruded with the use of a die (14) and a punch (13) each having an optimally designed structure to form a metal tube (T) integrally including a mouth, a shoulder and a body of an oval cross section. A hem portion of the oval body of the tube (T) thus formed and hardened by the impact extrusion is once deformed into a circular shape, and then trimmed off by a turning operation.

    摘要翻译: 本发明的一个目的是提供一种椭圆形横截面的新型铝管,其应用范围更广泛且附加值更高。 使用具有最佳设计结构的模具(14)和冲头(13)冲击挤压盘形金属块(21),以形成一体的金属管(T),其包括口,肩和 一个椭圆形截面的身体。 通过冲击挤出形成并硬化的管(T)的椭圆形体的中间部分一度变形为圆形,然后通过转动操作来修剪。

    Oval cross section metal tube producing device and producing method
    2.
    发明授权
    Oval cross section metal tube producing device and producing method 失效
    椭圆截面金属管生产装置及其制造方法

    公开(公告)号:US07219522B2

    公开(公告)日:2007-05-22

    申请号:US10522217

    申请日:2003-07-25

    IPC分类号: B21C23/00

    摘要: It is an object of the present invention to provide a novel aluminum tube of an oval cross section that has a wider range of applications and added values. A disk-shaped metal slug (21) is impact-extruded with the use of a die (14) and a punch (13) each having an optimally designed structure to form a metal tube (T) integrally including a mouth, a shoulder and a body of an oval cross section. A hem portion of the oval body of the tube (T) thus formed and hardened by the impact extrusion is once deformed into a circular shape, and then trimmed off by a turning operation.

    摘要翻译: 本发明的一个目的是提供一种椭圆形横截面的新型铝管,其应用范围更广泛且附加值更高。 使用具有最佳设计结构的模具(14)和冲头(13)冲击挤压盘形金属块(21),以形成一体的金属管(T),其包括口,肩和 一个椭圆形截面的身体。 通过冲击挤出形成并硬化的管(T)的椭圆体的中间部分一度变形为圆形,然后通过转动操作来修剪。