RF NODE WELDING OF CORRUGATED HONEYCOMB CORE

摘要

A method of bonding a first corrugated sheet and a second corrugated sheet to provide a honeycomb core assembly. The first corrugated sheet includes a plurality of lower node regions and the second corrugated sheet includes a plurality of upper node regions. The method includes applying a radio frequency activatable adhesive to one or both of a first lower node region of the first corrugated sheet and a first upper node region of the second corrugated sheet, positioning the first corrugated sheet adjacent to or in contact with the second corrugated sheet at the first upper node region and the first lower node region, and exposing the radio frequency activatable adhesives to a radio frequency to activate the radio frequency activatable adhesive, such that the first corrugated sheet is bonded to the second corrugated sheet.

主权项

1. A method of providing a honeycomb core member, the method comprising the steps of:
(a) obtaining a sheet of substrate, (b) corrugating the sheet of substrate to form a corrugated substrate that includes a plurality of ridges and troughs, wherein each ridge includes an upper node region on an upper surface thereof, and wherein each trough includes a lower node region on a lower surface thereof, (d) applying radio frequency activatable adhesive to at least some of the upper and lower node regions of the corrugated substrate, (c) cutting the corrugated substrate into at least first and second corrugated sheets, (d) positioning the first corrugated sheet adjacent to or in contact with the second corrugated sheet such that at least some of the lower node regions of the first corrugated sheet are in contact with at least some of the upper node regions of the second corrugated sheet to form a honeycomb stack, (e) exposing the radio frequency activatable adhesive to a radio frequency, whereby the first corrugated sheet is bonded to the second corrugated sheet to form a honeycomb core assembly, and (f) cutting the honeycomb core member from the honeycomb core assembly.