Fastner having multiple-bossed lead
    1.
    发明授权
    Fastner having multiple-bossed lead 有权
    Fastner拥有多头领先

    公开(公告)号:US06899500B2

    公开(公告)日:2005-05-31

    申请号:US09885796

    申请日:2001-06-19

    摘要: A threaded fastener includes a lead having bosses separated from one another by bases along the thread crest. Two such leads may be formed such that lead-in profiles for of one lead are disposed at locations corresponding to locations of lead-out profiles for the other lead. The lead-in and lead-out profiles of the bossed, and other features of the bosses and bases may differ from one another along the fastener shank. The boss profiles may be selected to reduce insertion torque and to provide excellent resistance to pullout. The fastener may be formed by roll threading via a tool made by a plunge EDM process.

    摘要翻译: 螺纹紧固件包括具有凸起部的引线,所述凸台通过沿着螺纹牙顶的基部彼此分开。 可以形成两个这样的引线,使得用于一个引线的引入型材设置在对应于另一引线的引出型材的位置的位置处。 凸起和凸起的基座的引入和引出轮廓以及沿着紧固件柄的彼此不同。 可以选择凸台轮廓以减小插入扭矩并且提供优异的拉拔阻力。 紧固件可以通过通过插入式EDM工艺制成的工具进行辊螺纹加工而形成。

    Method for making a fastener
    2.
    发明授权
    Method for making a fastener 有权
    制造紧固件的方法

    公开(公告)号:US06956181B2

    公开(公告)日:2005-10-18

    申请号:US10684687

    申请日:2003-10-14

    摘要: In accordance with one embodiment, the present technique provides a method for making a threaded fastener. The method includes that act of forming a die-making tool having surface features that correspond to the desired crest and flank profiles of a thread of the threaded fastener. The exemplary method also includes that act of forming a roll threading die via electric discharge machining of a die blank with the formed die-making tool.

    摘要翻译: 根据一个实施例,本技术提供了一种用于制造螺纹紧固件的方法。 该方法包括形成具有对应于螺纹紧固件的螺纹的期望的顶部和侧面轮廓的表面特征的模具的作用。 该示例性方法还包括通过使用所形成的模具制造工具通过模坯的放电加工来形成辊穿线模的动作。