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    • 7. 发明申请
    • Vehicle structural beam and method of manufacture
    • 车辆结构梁及其制造方法
    • US20050082346A1
    • 2005-04-21
    • US10940250
    • 2004-09-14
    • Frank McNultyGerald HackstockJeffrey Bladow
    • Frank McNultyGerald HackstockJeffrey Bladow
    • B62D25/06B60J5/00B60J5/04B60R19/03C21D9/08C21D9/50B23K1/20
    • B60J5/0444B60J5/0437Y10S148/902
    • A vehicle structural beam, such as a door intrusion beam, which possesses an elongate tubular beam part which at opposite ends is provided with mounting flanges for securement to a vehicle frame. The elongate tubular beam part and the flanges provided at opposite ends are defined by an integral, one-piece, monolithic steel structure which has been initially roll-formed from an elongate flat metal sheet to define the closed tubular structure of the tubular beam part, and which has been subjected to heating and quenching so that the elongate tubular beam part is of relatively high strength steel throughout its entire length, whereas the integrally and monolithically joined end flanges remain as lower strength steel which has been significantly unaffected by the heat treatment and quenching so as to permit appropriate shaping thereof and ease of welding to the vehicle frame.
    • 车门结构梁,例如门入侵梁,其具有细长的管状梁部分,其在相对端处设置有用于固定到车架的安装凸缘。 设置在相对端的细长管状梁部分和凸缘由整体的一体式整体钢结构限定,该钢结构最初由细长的扁平金属板卷成形以限定管状梁部分的封闭管状结构, 并且已经进行了加热和淬火,使得细长的管状梁部分在其整个长度上具有相对高强度的钢,而整体和整体连接的端部凸缘保持为较低强度的钢,其已经显着地不受热处理的影响, 淬火以允许其适当的成形和容易焊接到车架上。