Method and apparatus for making inserts for honeycomb panels
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United States of America Patent
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-
Oct 1, 1991
Grant Date -
N/A
app pub date -
Nov 25, 1988
filing date -
Nov 25, 1988
priority date (Note) -
Expired
status (Latency Note)
Importance
Abstract
A method and apparatus for making an insert for selectively, locally, densifying panels having a honeycomb core and at least one face sheet. At least two narrow, long foil strips are fed from supply rollers through a corrugating device which corrugates at least one of the strips. Preferably, the depth of corrugations vary greatly between adjacent strips. From the corrugating device the strips go to a take up reel which winds the strips into a flat pancake coil. When the desired coil diameter is reached the coil is secured to prevent unwinding and the coil is removed from the reel. The coils are used to replace portions of the honeycomb core to locally improve density, strength and thermal transfer characteristics of the panel.
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