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1.发明授权
公开(公告)号：US5361483A
公开(公告)日：1994-11-08
申请号：US795284
申请日：1991-11-19
CPC分类号： B29C65/601 , B29C65/08 , B29C66/1122 , B29C66/21 , B29C66/43 , B29C66/72141 , B29C66/7392 , B29C66/73921 , B29C66/7394 , B29C66/81423 , B29C66/81429 , B29C66/81431 , B29C66/83221 , B29C67/0044 , F16B19/04 , F16B19/06 , B29C2793/00 , B29C35/0261 , B29C66/71 , B29C66/7212 , B29K2101/12 , B29K2105/06 , B29K2105/101 , B29L2031/7288 , Y10S411/908 , Y10T29/49943 , Y10T29/49956 , Y10T403/47
摘要： A composite fastener, preferably in the form of a rivet, which comprises a shank having a first head integrally formed on one end thereof, the shank and head formed of a high temperature thermoplastic matrix material selected from the group consisting of a polyether ether ketone resin and a polyamide imide resin, and having continuous reinforcing fibers, such as graphite fibers, axially oriented in substantially parallel relation throughout the shank, the fibers being flared and extending continuously into the head and substantially evenly flared and swaged therein, thereby forming a fastener having high shear and high tensile characteristics. The rivet is installed to fasten a plurality of structural components together by providing a conical tip on a forming tool, such as a heat gun or ultrasonic welding device for plastics, placing the tip in contact with the central portion of the other end of the rivet and upsetting and melting the matrix material under controlled conditions to form a second head, the fibers in the second head being flared and extending continuously into the second head and evenly swaged therein. Where the structural components are composite thermoplastic components, the heating of the rivet head to upset same heats the adjacent composite structure in contact with the head and, upon solidification, forms a substantially integral unit.
摘要翻译： 一种优选为铆钉形式的复合紧固件，其包括具有在其一端上整体形成的第一头部的柄，所述柄部和头部由高温热塑性基质材料形成，所述高温热塑性基质材料选自聚醚醚酮树脂 和聚酰胺酰亚胺树脂，并且具有连续的增强纤维，例如石墨纤维，在整个柄部基本上平行地轴向取向，纤维被张开并且连续地延伸到头部中并基本上均匀地张开并且在其中锻造，从而形成紧固件， 高剪切和高拉伸特性。 铆钉被安装成通过在成形工具（例如用于塑料的热枪或超声波焊接装置）上提供锥形尖端来将多个结构部件紧固在一起，将尖端与铆钉另一端的中心部分接触 并且在受控条件下镦粗和熔化基质材料以形成第二头部，第二头部中的纤维被张开并连续延伸到第二头部并均匀地在其中锻造。 在结构部件是复合热塑性部件的情况下，铆钉头对镦锻的加热加热与头部接触的相邻复合结构，并且在固化时形成基本上整体的单元。
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公开(公告)号：US4588651A
公开(公告)日：1986-05-13
申请号：US466987
申请日：1983-02-16
申请人： Leonardo Israeli
发明人： Leonardo Israeli
CPC分类号： B21D47/00 , Y10T29/49861 , Y10T428/12347
摘要： A novel method of forming complex structures by using an accordion expansion process is disclosed. The process involves a plurality of flat workpieces of predesigned shapes and sizes that are positioned in such a manner, that after the workpieces have been first joined together, they are expanded to form high strength structural members of complex design.
摘要翻译： 公开了一种通过使用手风琴展开方法形成复杂结构的新方法。 该工艺涉及多个预先设计的形状和尺寸的平坦工件，这些工件以这样的方式定位，即在工件已经首先接合在一起之后，它们被膨胀以形成复杂设计的高强度结构构件。
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公开(公告)号：US4361262A
公开(公告)日：1982-11-30
申请号：US158845
申请日：1980-06-12
申请人： Leonardo Israeli
发明人： Leonardo Israeli
CPC分类号： B21D26/055 , B21D47/00 , B21D53/045 , B23K20/18 , B29D24/005 , Y10T156/1003 , Y10T428/12347
摘要： A method of making sandwich structures from a plurality of workpieces is disclosed. The method comprises providing a plurality of workpieces, each having principal opposed surfaces. The workpieces comprise first and second outer workpieces and at least two core workpieces. Each of the core workpieces have cutout portions defining at least one strip. The workpieces are treated at selected locations to inhibit joining at said locations. The treated workpieces are positioned in a stack contacting at their principal surfaces. The workpieces are joined, preferably by diffusion bonding, at their untreated contacting surfaces such that alternate longitudinal edges of superimposed strips are joined together and to the outer workpieces. Preferably, at least one chamber is enclosed by positioning the stacked workpieces relative to a plurality of shaping members. At least one of the outer workpieces is caused to expand into the at least one chamber and to form against the at least one shaping member causing the strips of the core workpieces to extend substantially vertically. If an even number of core assemblies are used the webs are vertical; and if an odd number are used they are at an angle to the cover workpieces. Preferably, the at least one expanded outer workpieces has an effective strain rate sensitivity and the expansion is accomplished superplastically.
摘要翻译： 公开了一种从多个工件制造夹层结构的方法。 该方法包括提供多个工件，每个工件具有主要相对的表面。 工件包括第一和第二外部工件和至少两个芯部工件。 每个核心工件具有限定至少一个条带的切口部分。 在选定的位置处理工件以抑制在所述位置处的接合。 经处理的工件被定位在与其主表面接触的堆叠中。 工件优选地通过扩散接合在它们未处理的接触表面处接合，使得叠加条带的交替纵向边缘连接在一起并连接到外部工件。 优选地，通过相对于多个成形构件定位堆叠的工件来封闭至少一个室。 外部工件中的至少一个被引入到至少一个室中并且形成为抵靠着至少一个成形构件，从而使芯体工件的条带基本上垂直地延伸。 如果使用偶数个芯组件，则网是垂直的; 并且如果使用奇数，则它们与盖工件成一角度。 优选地，至少一个膨胀的外部工件具有有效的应变速率灵敏度，并且膨胀是超塑性地实现的。
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