METAL STRUCTURE DEFINING CIRCULAR FLANGED HOLE AND METHOD FOR MAKING THE SAME
    1.
    发明申请
    METAL STRUCTURE DEFINING CIRCULAR FLANGED HOLE AND METHOD FOR MAKING THE SAME 失效
    金属结构定义圆形法兰孔及其制造方法

    公开(公告)号:US20080231050A1

    公开(公告)日:2008-09-25

    申请号:US11944463

    申请日:2007-11-23

    IPC分类号: F16L23/00 B21D31/02

    摘要: An exemplary metal structure (10, 30) includes a base portion (14, 34), a flange (122, 322), and an edge portion (1241, 3241). The base portion defines a circular flanged hole (12, 32). The flange extends from a top surface of the base portion and the flange surrounds the circular flanged hole. The edge portion is configured for connecting an inside surface of the flange and the top surface of the base portion. The edge portion includes an edge surface, and a ratio of a radius of the edge surface (1242, 3242) of the edge portion with respect to a thickness of the base portion is less than 0.4. A method for making a circular flanged hole in a metal sheet (15) is also provided.

    摘要翻译: 示例性金属结构(10,30)包括基部(14,34),凸缘(122,322)和边缘部分(1241,3241)。 基部限定圆形凸缘孔(12,32)。 凸缘从基部的顶表面延伸并且凸缘包围圆形凸缘孔。 边缘部分构造成用于连接凸缘的内表面和基部的顶表面。 边缘部分包括边缘表面,并且边缘部分的边缘表面(1242,3242)相对于基部的厚度的半径的比率小于0.4。 还提供了在金属板(15)中制造圆形法兰孔的方法。