Friction stir processing for surface properties
    10.
    发明授权
    Friction stir processing for surface properties 失效
    摩擦搅拌加工表面性能

    公开(公告)号:US07225969B2

    公开(公告)日:2007-06-05

    申请号:US11009405

    申请日:2004-12-10

    IPC分类号: B23K20/12 B23K31/02

    摘要: A surface of an article is heated and subjected to pressure by operation of a friction stir tool. The pressure of the face of the tool on the article surface, and the speed of rotation of the tool and of its progression along the surface of the article, are controlled to progressively hot-work a specified surface area. The face of the tool may be round and have a profiled, axially extending, smaller diameter pin for higher concentration of frictional heat and load and for plasticizing a surface layer of the workpiece. Such hot work may be applied for reducing surface porosity or for producing another change in the surface microstructure, or for effecting another change in surface material properties.

    摘要翻译: 制品的表面通过摩擦搅拌工具的操作被加热并施加压力。 物品表面上的工具表面的压力以及工具的旋转速度及其沿着制品表面的进行的压力被控制以逐步热工作在指定的表面积。 工具的表面可以是圆形的并且具有成型的,轴向延伸的较小直径的销,用于更高浓度的摩擦热和负载并且用于塑化工件的表面层。 这种热加工可用于降低表面孔隙率或用于产生表面微观结构的另一变化,或用于实现表面材料性质的另一变化。