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HexWeb

®

Aluminum Flex-Core

®

Formable Aluminum Honeycomb

ALUMINUM FLEX-CORE - 37685 Product Data

Description

HexWeb
® Aluminum Flex-Core
® honeycomb utilizes either 5052 or 5056 alloy foil material and is available in twocell sizes and Double-Flex
™ . Flex-Core
® has unique cell configurations that eliminate anticlastic behavior andpermit small radii of curvature without deformation of the cell walls or loss of mechanical properties.

Features

â–  The only commercially available aluminum honeycomb core specifically designed for formability â–  Retains mechanical properties in sharp curvatures â–  Offers cost savings for curved panels â–  Available in two cell sizes and double-flex configuration

Applications

HexWeb
® Aluminum Flex-Core
® has been developed by Hexcel to allow the designer and fabricator freedom inthe utilization of honeycomb for components requiring simple and compound curvatures. Highly contoured sandwich panels such as leading edges and flaps, nacelles, fairings, doors and access covers, and otherparabolic, spherical and cylindrical shapes are prime Flex-Core
® candidates. Duplicate die model and controltooling for aerospace use are also examples of Flex-Core
® applications.As with standard aluminum honeycomb, Flex-Core
® provides controlled crush characteristics without rebound andthus curved energy absorption units become feasible and economical.

Type Designation

Hexcel HexWeb
® AluminumFlex-Core and Double-Flex
TM materials are designated as follows: CR-PAA
TM – 5052/F40 - .0013*-2.1CR III - 5052/DF40 – .0025 – 4.2 Where: CR-PAA– phosphoric acid anodized coating CR III– CR III coating 5052– aluminum alloy used F40 or DF40– nominal cell count of open cells in 12 inches measured in the W direction .0013 or .0025– nominal foil gauge (inches) 2.1 or 4.2– is the nominal density in pounds per cubic foot
• If blank, cell walls are not slit; otherwise designated as S for slit cell walls.

Coatings

HexWeb
® Aluminum Flex-Core
® is available with two types of corrosion-resistant coating. These coatings are CR IIIand phosphoric acid anodized (CR-PAA
TM ). CR III is an organo-metallic polymer coating that offers protection foraluminum honeycomb exposed to corrosive environments. CR-PAA
TM offers superior protection in extreme saltspray environments.
© Copyright Hexcel Corporation™ CR-PAA, Double-Flex are trademarks of Hexcel Corporation, Stamford, Connecticut. ®CR III, HexWeb, Flex-Core, Hexcel, and the Hexcel logo are registered trademarks of Hexcel Corporation, Stamford, Connecticut.