Apparatus for making centrifugally-cast tube
    1.
    发明授权
    Apparatus for making centrifugally-cast tube 有权
    用于制造离心铸管的装置

    公开(公告)号:US08070401B2

    公开(公告)日:2011-12-06

    申请号:US12775667

    申请日:2010-05-07

    IPC分类号: B23D37/04 B23D37/22 B23D43/04

    摘要: An improved centrifugally-cast tube is provided, along with a related method and apparatus of making the tube. The tube includes a plurality of grooves and bosses that are mechanically machined into an interior surface of the tube, such as by a broaching process. The profile of grooves and bosses may be defined by a plurality of intersecting concave and convex radii. The tube is resistant to creep, carburization and metal dusting. The tube also has an enhanced heat transfer rate, and a desirable surface roughness. A method of making the tube is also provided. The method essentially consists of mechanically deforming the interior surface of the tube by passing a series of cutting inserts on support rings having incrementally-differing dimensions over the interior surface. An apparatus is also provided which includes a telescoping shaft upon which is mounted at least one cutting tool that has a plurality of cutting inserts and is adapted to form a plurality of grooves and bosses in the interior surface of the tube. The grooves and bosses may be straight or spiraled.

    摘要翻译: 提供了一种改进的离心铸管,以及制造该管的相关方法和装置。 该管包括多个槽和凸台,例如通过拉削工艺机械加工到管的内表面中。 凹槽和凸起的轮廓可以由多个相交的凹凸半径限定。 该管耐蠕变,渗碳和金属粉尘。 管也具有增强的传热速率和期望的表面粗糙度。 还提供了制造管的方法。 该方法基本上包括通过将一系列切削刀片通过在内表面上具有递增不同尺寸的支撑环上的机械变形来使管的内表面变形。 还提供了一种装置,其包括伸缩轴,在该装置上安装有至少一个具有多个切削刀片的切削工具,并且适于在管的内表面中形成多个凹槽和凸起。 凹槽和凸起可以是直的或螺旋形的。

    Centrifugally-cast tube and related method and apparatus for making same
    3.
    发明授权
    Centrifugally-cast tube and related method and apparatus for making same 有权
    离心铸管及其制造方法及装置

    公开(公告)号:US06644358B2

    公开(公告)日:2003-11-11

    申请号:US09933475

    申请日:2001-07-27

    IPC分类号: F16L900

    摘要: An improved centrifugally-cast tube is provided, along with a related method and apparatus of making the tube. The tube includes a plurality of grooves and bosses that are mechanically machined into an interior surface of the tube, such as by a broaching process. The profile of grooves and bosses may be defined by a plurality of intersecting concave and convex radii. The tube is resistant to creep, carburization and metal dusting. The tube also has an enhanced heat transfer rate, and a desirable surface roughness. A method of making the tube is also provided. The method essentially consists of mechanically deforming the interior surface of the tube by passing a series of cutting inserts on support rings having incrementally-differing dimensions over the interior surface. An apparatus is also provided which includes a telescoping shaft upon which is mounted at least one cutting tool that has a plurality of cutting inserts and is adapted to form a plurality of grooves and bosses in the interior surface of the tube. The grooves and bosses may be straight or spiraled.

    摘要翻译: 提供了一种改进的离心铸管,以及制造该管的相关方法和装置。 该管包括多个槽和凸台,例如通过拉削工艺机械加工到管的内表面中。 凹槽和凸起的轮廓可以由多个相交的凹凸半径限定。 该管耐蠕变,渗碳和金属粉尘。 管也具有增强的传热速率和期望的表面粗糙度。 还提供了制造管的方法。 该方法基本上包括通过将一系列切削刀片通过在内表面上具有递增不同尺寸的支撑环上的机械变形来使管的内表面变形。 还提供了一种装置,其包括伸缩轴,在该装置上安装有至少一个具有多个切削刀片的切削工具,并且适于在管的内表面中形成多个凹槽和凸起。 凹槽和凸起可以是直的或螺旋形的。

    Method of and apparatus for the finish shaping of profiled cylindrical
holes
    5.
    发明授权
    Method of and apparatus for the finish shaping of profiled cylindrical holes 失效
    成形圆柱形孔的精加工方法和装置

    公开(公告)号:US4573841A

    公开(公告)日:1986-03-04

    申请号:US551716

    申请日:1983-11-15

    摘要: Method of and tool for the precise and finish processing of profiled cylindrical holes in a metal workpiece, wherein the length to billet diameter ratio of the hole is larger than 3. In accordance with the method of the invention, there is preliminary chip removal along the hole being processed, and the hole is later plastically deformed by fluid fed to the deformation zone thereof under high pressure. Fluid under high pressure is also fed to the zone of chip removal and is directed toward the chips removed from the material.The tool for carrying out the method comprises guiding, cutting, deforming and sizing parts disposed in such sequence and mounted upon a tool body. The tool body is provided with a blind axial hole through which the fluid under high pressure is supplied to the deformation zone of the hole in the workpiece and to the zone of chip removal where it is directed toward the chips removed from the material of the workpiece.

    摘要翻译: 金属工件中异形圆柱孔精确加工精加工的方法和工具,其中孔的长度与坯料直径之比大于3.根据本发明的方法,沿着 孔被处理,并且孔随后在高压下供给到其变形区的流体塑性变形。 在高压下的流体也被送入去屑区,并且被引向从材料上移除的碎屑。 用于执行该方法的工具包括引导,切割,变形和调整按顺序设置的部件并将其安装在工具主体上。 工具主体设置有盲孔轴向孔,高压下的流体通过该轴向孔被供给到工件中的孔的变形区域,并且被提供到切屑区域,在该区域被引导到从工件的材料移除的切屑 。