Reinforcing rings for honeycomb panels and method and apparatus

Stock material or miscellaneous articles – All metal or with adjacent metals – Honeycomb – or with grain orientation or elongated elements...

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Details

428603, B32B 312

Patent

active

050136135

ABSTRACT:
A ring insert for locally reinforcing a panel having a honeycomb core and at least one face sheet. The ring insert has at least two adjacent corrugated foil strips wound with the surface of the strips (and the corrugations) lying substantially perpendicular to the ring axis. The corrugations in adjacent strips have substantially different corrugation curve periods to prevent nesting of the corrugations of one strip into those of the next strip. The strips are bonded together to form a unitary ring. These inserts are adapted to be placed in cut-outs of corresponding shape in a honeycomb core and to be bonded thereto and to the panel face sheets. A method and an apparatus for winding the coil are also disclosed.

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