Thermoplastic panel bending

Details Thermoplastic panel bending Thermoplastic panel bending

B - Operations, Transporting

29

C

B29C 53/04 (2006.01) B32B 3/12 (2006.01)

Patent

CA 2213795

A process for bending a thermoplastic skinned honeycomb core panel includes clamping a planar portion of the panel to hold the panel against movement parallel to the plane of the planar portion. A linear band of a face sheet on one side of the panel is heated to soften resin and disbond adhesive holding the face sheet to the honeycomb core. The heat is removed, forming a bubble separated from the core. A distal leg of the panel is bent around a heated anvil along an axis parallel to the linear band to form a bend having an inside radius. The bubble collapses around the inside radius and forms an overlapping flap of face sheet. The flap is pressed in a fold between the anvil and the bent leg of the panel, and the leg is held in the bent position while resin in the flap solidifies.

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