Adhesive bonding and miscellaneous chemical manufacture – Methods – Surface bonding and/or assembly therefor
Patent
1989-02-24
1990-04-17
Dawson, Robert A.
Adhesive bonding and miscellaneous chemical manufacture
Methods
Surface bonding and/or assembly therefor
156211, 156258, 1563045, 428 60, 428116, 428117, 4283142, 4283166, B32B 3112, B32B 3120
Patent
active
049177478
ABSTRACT:
A laterally projecting flange (18) is formed on the upper portion of an edge of a flat section (12) of foam core material. The inner surface of the flange (18) and the adjacent lower edge surface of the foam section (12) are positioned adjacent to the upper surface and flat edge surface of a honeycomb core section (14). Hot melt adhesive is applied to hold the sections (12, 14) in this abutting position. The abutting sections (12, 14) are assembled together with upper and lower skins (24, 26) of fiber reinforced resin/matrix composite material prepreg fabric or tape. The assembly of core sections (12, 14) and skins (24, 26) is positioned in compression molding apparatus and subjected to a crushed core compression molding procedure. During the molding, a bend (32) is formed in the panel assembly substantially along the abutting edges of the core sections (12, 14). The flange (18) is positioned on the outer radius of the bend (32). During the molding, the portion (34) of the honeycomb section (14) radially adjacent to the flange (18) is crushed to form a voidless interface between the sections (12, 14).
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Chin Victor C.
Jone Paul Y.
Marshall Robert J.
Dawson Robert A.
Pauly Joan H.
The Boeing Company
Yoder Michele K.
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