Paper number 265
|FOLDED HONEYCOMBS FAST AND CONTINUOUS PRODUCTION OF THE CORE AND A RELIABLE CORE-SKIN BOND|
Jochen Pflug1, Ignaas Verpoest1, Dirk Vandepitte2
1Department of Metallurgy and Materials Engineering, Katholieke Universiteit Leuven,
De Croylaan 2, 3001 Leuven, Belgium
2Division Production Engineering, Machine Design and Automation, Katholieke Universiteit Leuven, Celestijnenlaan 300 B, 3001 Leuven, Belgium
|Summary||This paper presents a new honeycomb material production concept developed and patented by the K.U.Leuven. The folded honeycombs join the excellent honeycomb properties with the very efficient production technology of corrugated cardboard. Inner structure, shear and flat-wise compression properties of folded honeycombs are similar to conventional expanded honeycombs. However, their production concept is derived from the corrugated cardboard production. The production from a single continuous sheet allows for a continuous process, resulting in high speed and low cost production of this new sandwich core material for packaging and structural applications. Furthermore, the new honeycomb core exhibits a different concept for the critical core-skin bond. The bonding of the skins can be fast and inexpensive due to a larger contact area with the skins, resulting in a more reliable bond, improved peel strength and enhanced after impact performance.
||Keywords|| honeycomb, folded honeycomb, continuous production, core-skin bond, debonding, sandwich core.
Theme : Composite Structures ; Sandwiches
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