| 摘要 |
A method for securely joining together at least first and second structural elements without disrupting the contour or continuity of the surfaces of the structure or the structural elements is disclosed. The first structural element has a first hole having a counterbored section. The counterbored section has a recessed cavity therein, which is open to the counterbored section and has an upper wall that extends generally radially outwardly from the longitudinal axis of the first hole. The second structural element has a second hole in coaxial alignment with the first hole. A fastener, such as a bolt or stud and nut combination, is inserted into the coaxially aligned holes so that the structural elements are thereby joined and the head of the bolt or nut is recessed in the counterbored section of the first hole. A suitable castable material, e.g. aluminum, is then applied to the first hole so as to fill any remaining space in the hole, including the counterbored section and the recessed cavity. When the castable material has hardened, the thus filled recessed cavity prevents the cast material from loosening or falling out of the hole, thereby securing the fastener in the structural elements. The surface of the first structural element is then finished, by turning or milling for example, so as to provide a smooth and continuous surface.
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