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    • 1. 发明申请
    • METHOD FOR TESTING AND REPAIRING ADHESIVE BONDS
    • 测试和修复胶粘剂的方法
    • US20090277563A1
    • 2009-11-12
    • US12348955
    • 2009-01-06
    • Pei-Chung WangJohn D. Fickes
    • Pei-Chung WangJohn D. Fickes
    • B32B38/00G01N3/00
    • G01N19/04
    • A method for testing adhesive bond quality includes subjecting an adhesively-bonded workpiece to a known loading function. The loading function may be cyclic, linear, or nonlinear, and configured not to damage the workpiece. Response characteristics of the workpiece are measured during the loading. Measured response characteristics are compared with baseline or nominal characteristics and the adhesive bond quality is determined from the resulting comparison. A differential signal may be generated based upon the comparison of measured response and baseline characteristics and used to determine the adhesive bond quality, possibly with an algorithm. Being within the acceptable range is indicative of acceptable adhesive bond quality. The root cause of failure may be determined and a course of action based thereupon; including: localized curing, inspection, repair, and destruction. Following corrective courses of action, the workpiece may be re-tested and compared again to the baseline.
    • 用于测试粘合剂粘合质量的方法包括使粘合的工件经受已知的加载功能。 加载功能可以是循环的,线性的或非线性的,并且被配置成不会损坏工件。 在加载期间测量工件的响应特性。 将测量的响应特性与基线或标称特性进行比较,并从所得到的比较中确定粘合剂粘合质量。 可以基于测量的响应和基线特性的比较来生成差分信号,并且可以用算法确定粘合剂粘合质量。 在可接受的范围内表示可接受的胶粘剂质量。 可能确定失败的根本原因,并根据此而采取的行动方针; 包括:局部固化,检查,修理和破坏。 在纠正行动过程之后,可以重新测试工件并再次对基准进行比较。
    • 3. 发明申请
    • Method for repairing bonded metallic structures
    • 修补粘结金属结构的方法
    • US20080085568A1
    • 2008-04-10
    • US11539969
    • 2006-10-10
    • Pei-Chung WangJohn D. Fickes
    • Pei-Chung WangJohn D. Fickes
    • H01L21/00
    • B23P6/00B23K9/0026B23K11/002
    • A method of repairing a bonded metallic structure having a first metallic member bonded to a second metallic member is provided. The method includes the steps of: A) forming a hole in at least one of the first metallic member and second metallic member, wherein said hole is sufficiently configured to receive a slug; B) inserting said slug into said hole; and C) passing electrical current through said slug of sufficient intensity to promote melting at the interface between the first metallic member, second metallic member, and said slug, thereby securing the first metallic member with respect to the second metallic member. Alternately, the method may include: D) positioning said slug near said hole; E) passing electrical current through said slug of sufficient intensity to promote arcing between said slug and the bonded metallic structure; and F) inserting said slug into said hole thereby securing the first metallic member with respect to the second metallic member.
    • 提供一种修复具有接合到第二金属构件的第一金属构件的接合金属结构的方法。 该方法包括以下步骤:A)在第一金属构件和第二金属构件中的至少一个中形成孔,其中所述孔被充分构造成容纳块塞; B)将所述块插入所述孔中; 以及C)使足够强度的电流通过所述块状物,以在第一金属构件,第二金属构件和所述块之间的界面处促进熔化,从而相对于第二金属构件固定第一金属构件。 或者,该方法可以包括:D)将所述块塞定位在所述孔附近; E)使足够强度的电流通过所述块,以促进所述块和结合的金属结构之间的电弧; 和F)将所述块插入所述孔中,从而相对于第二金属构件固定第一金属构件。
    • 4. 发明授权
    • Method and system for welding workpieces
    • 焊接工件的方法和系统
    • US08455784B2
    • 2013-06-04
    • US12116381
    • 2008-05-07
    • Pei-Chung WangJohn D. FickesXiaohong Q. GaydenWuhua Yang
    • Pei-Chung WangJohn D. FickesXiaohong Q. GaydenWuhua Yang
    • B23K11/24
    • B23K11/252B23K11/251B23K31/125
    • A method of welding two or more workpieces employing a motion-controlled electrode that reduces temperature and residual stresses at a workpiece-to-electrode interface is disclosed. During a first period of time, a first electrode force is applied to the workpieces to be welded, and a weld current is applied that causes heating of an associated workpiece-to-workpiece faying surface, the first electrode force being applied at a first electrode stroke. A temperature of the faying surface indicative of a weld nugget formation thereat is determined, and in response thereto the electrode force is reduced to a second level during a second period of time while maintaining a constant electrode stroke. During a third period of time, the electrode force is further reduced to a third level while simultaneously reducing the electrode stroke to a second level. Welding is stopped after the third period of time, resulting in a weld joint having reduced residual stresses and reduced likelihood of stress crack formation.
    • 公开了一种焊接两个或更多个工件的方法,该工件采用运动控制的电极来降低工件对电极界面的温度和残余应力。 在第一时间段期间,第一电极力被施加到待焊接的工件上,并且施加焊接电流,其引起相关联的工件对工件接合表面的加热,第一电极力施加在第一电极 行程。 确定表示焊接熔核形成的接合表面的温度,并且响应于此,电极力在第二时间段期间降低到第二水平,同时保持恒定的电极行程。 在第三时间段期间,电极力进一步降低到第三水平,同时将电极行程降低到第二水平。 焊接在第三个时间段之后停止,导致焊接接头具有减小的残余应力并减少应力裂纹形成的可能性。
    • 8. 发明授权
    • Method for repairing bonded metallic structures
    • 修补粘结金属结构的方法
    • US08466386B2
    • 2013-06-18
    • US11539969
    • 2006-10-10
    • Pei-Chung WangJohn D. Fickes
    • Pei-Chung WangJohn D. Fickes
    • B23K11/00
    • B23P6/00B23K9/0026B23K11/002
    • A method of repairing a bonded metallic structure having a first metallic member bonded to a second metallic member is provided. The method includes the steps of: A) forming a hole in at least one of the first metallic member and second metallic member, wherein said hole is sufficiently configured to receive a slug; B) inserting said slug into said hole; and C) passing electrical current through said slug of sufficient intensity to promote melting at the interface between the first metallic member, second metallic member, and said slug, thereby securing the first metallic member with respect to the second metallic member. Alternately, the method may include: D) positioning said slug near said hole; E) passing electrical current through said slug of sufficient intensity to promote arcing between said slug and the bonded metallic structure; and F) inserting said slug into said hole thereby securing the first metallic member with respect to the second metallic member.
    • 提供一种修复具有接合到第二金属构件的第一金属构件的接合金属结构的方法。 该方法包括以下步骤:A)在第一金属构件和第二金属构件中的至少一个中形成孔,其中所述孔被充分构造成容纳块塞; B)将所述块插入所述孔中; 以及C)使足够强度的电流通过所述块状物,以在第一金属构件,第二金属构件和所述块之间的界面处促进熔化,从而相对于第二金属构件固定第一金属构件。 或者,该方法可以包括:D)将所述块塞定位在所述孔附近; E)使足够强度的电流通过所述块,以促进所述块和结合的金属结构之间的电弧; 和F)将所述块插入所述孔中,从而相对于第二金属构件固定第一金属构件。