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    • 2. 发明申请
    • ROLL-FORMING UTILIZING SPLITTING TECHNOLOGY
    • 滚动使用分割技术
    • WO1997027009A1
    • 1997-07-31
    • PCT/IB1997000137
    • 1997-01-24
    • COSMA INTERNATIONAL, INC.
    • COSMA INTERNATIONAL, INC.JAEKEL, Fred, G.
    • B21B01/08
    • B21B1/088B21B1/0815B21B1/12
    • A method is provided for roll-forming an I-beam structure having a web and a pair of opposing flanges at each end of the web. The method includes the steps of providing a flat blank having a thickness generally equal to a thickness of the web of the I-beam to be formed. The blank has a longitudinal axis, a central portion and opposing ends. Each of the blank ends is split along the longitudinal axis to form first and second flange portions at each of the ends. Each of the first and second flange portions has an edge directed away from the central portion. The flange portions are then bent about the longitudinal axis by moving each of the edges in a direction towards the central portion to form a mass of material at each of the blank ends. The mass of material is compacted at each of the blank ends to define the flanges. Each flange is disposed generally transverse with respect to the longitudinal axis and has a thickness generally equal to the thickness of the web.
    • 提供了一种用于辊压成型的梁形结构,其在腹板的每个端部具有腹板和一对相对的凸缘。 该方法包括以下步骤:提供具有大致等于待形成的工字梁的腹板厚度的平坦坯料。 坯料具有纵向轴线,中心部分和相对端部。 每个坯料端部沿着纵向轴线分开,以在每个端部处形成第一和第二凸缘部分。 第一和第二凸缘部分中的每一个具有远离中心部分的边缘。 然后通过沿着朝向中心部分的方向移动每个边缘来使凸缘部分围绕纵向轴线弯曲,以在每个空白端部处形成大量材料。 材料的质量在每个坯料端部被压实以限定凸缘。 每个凸缘相对于纵向轴线大致横向地设置,并且具有大致等于腹板厚度的厚度。