Adhesive bonding and miscellaneous chemical manufacture – Methods – Surface bonding and/or assembly therefor
Patent
1991-02-13
1993-03-02
Ball, Michael W.
Adhesive bonding and miscellaneous chemical manufacture
Methods
Surface bonding and/or assembly therefor
2940211, 156 94, 264 36, 428 63, B32B 3500
Patent
active
051906112
ABSTRACT:
Material is removed from a panel (10) in the region surrounding an undesired opening (12) caused by damage or incorrect forming or wear of a fastener hole. The resulting prepared opening (21) has a bearing load transmitting sidewall surface that is substantially perpendicular to the outer surface (11) of the panel (10) and tapers slightly in an inward direction relative to the surface (11). The prepared opening (21) may extend all the way through the panel (10) or only part way through. A prefabricated insert (22) is positioned in the prepared opening (21) and bonded to the load transmitting surface. The bonding may be accomplished by applying an adhesive or using a fusing procedure. The insert (22) may have a constant angle of taper, preferably about two degrees, or may be concavely curved in the direction of taper. The insert (22) may be trimmed prior to and/or following the bonding procedure. A new fastener hole may be drilled through the bonded insert (22). The snug fit of the insert (22) and the nearly perpendicular orientation of the inset/panel interface result in the direct transmission of bearing loads between the panel (10) and the insert (22) in the repaired area.
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Cologna Rudy L.
Westerman Jr. Everett A.
Ball Michael W.
Bellamy Glenn D.
Pauly Joan H.
Stemmer Danniel J.
The Boeing Company
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