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    • 9. 发明申请
    • AUTOMOTIVE CRUSH TIP AND METHOD OF MANUFACTURING
    • 汽车起重机和制造方法
    • WO2006042032A2
    • 2006-04-20
    • PCT/US2005/036018
    • 2005-10-07
    • NOBLE METAL PROCESSING, INC.CRIPSEY, Timothy, J.JANSEN, Steven, W.
    • CRIPSEY, Timothy, J.JANSEN, Steven, W.
    • B62D21/15F16F7/12B21D26/02
    • B21D53/88B62D21/15B62D21/152
    • Various structural features can be formed in the blank prior to welding opposing walls of a blank together to form a tubular member and/or can be formed simultaneously with forming a wall of the tubular wall. Transverse collapse initiating features can be formed by expanding the material of the wall. These features can be located in a corner portion that connects two side wall portions of the tubular member together and/or in a side wall portion thereof. In cases where both are provided, the side wall and corner collapse initiating features can be aligned with each other. Another portion of the wall material can be free of strain hardening and/or material thinning. A blank for the tubular member can be formed from sub-blanks welded together, can have non-parallel opposing side edges, and/or can have different thickness and/or different material portions.
    • 在将坯料的相对壁一起焊接在一起以形成管状构件和/或可以同时形成管状壁的壁的同时形成在坯料中的各种结构特征。 可以通过膨胀壁的材料来形成横向折叠起始特征。 这些特征可以位于将管状构件的两个侧壁部分和/或其侧壁部分连接在一起的角部。 在提供两者的情况下,侧壁和角塌陷起始特征可以彼此对准。 壁材料的另一部分可以没有应变硬化和/或材料变薄。 用于管状构件的坯件可以由焊接在一起的子坯料形成,可以具有不平行的相对的侧边缘和/或可以具有不同的厚度和/或不同的材料部分。
    • 10. 发明申请
    • PROCESS FOR PRESS FORMING METAL TUBES
    • 压制成型金属管的工艺
    • WO2004101187A2
    • 2004-11-25
    • PCT/US2004/014278
    • 2004-05-07
    • PROTOTUBE, INC.CRIPSEY, Timothy, J.
    • CRIPSEY, Timothy, J.
    • B21C
    • B21C37/185B21C37/065B21C37/0803B21C37/0815B21D5/015
    • Sub-blanks having different thicknesses and/or different materials are joined together along a joint line or boundary line. The joint line can have an axial directional component and/or a radial directional component. The blank is formed into a U-shaped structure with two substantially parallel arms and the arms can be overbent toward each other by a distance that varies along the axial length of the U-shaped member. The U-shaped member can be subjected to a press forming operation to form a substantially tubular member. The substantially tubular member can have a non-circular cross-sectional shape. A step can be formed at the joint line as a result of different thickness sub-blanks. The step is placed in a press forming die facing outwardly so that the step is reduced during the press forming operation.
    • 具有不同厚度和/或不同材料的子坯料沿着接合线或边界线连接在一起。 接合线可以具有轴向方向分量和/或径向方向分量。 坯料形成为具有两个基本上平行的臂的U形结构,并且臂可以彼此相对地沿着U形构件的轴向长度变化的距离。 U形构件可以进行压制成形操作,以形成基本上管状的构件。 基本上管状的构件可以具有非圆形横截面形状。 作为不同厚度的子坯的结果,可以在接合线处形成台阶。 将该台阶放置在面向外的压制成形模中,使得在冲压成型操作期间台阶减小。