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4. Machining sandwich structures
The difficulty is even greater with this type of structure, since this time the skin laminate (fibers and resin) and the plastic foam or metal honeycomb, or even the wood panel, have to be cut at the same time.
Every type of material is different, and it is more than ever advisable to carry out some preliminary tests on material samples.
The most frequent operation is the drilling of sandwich structures. In this case, it is necessary to drill successively the rigid skin, then the soft honeycomb core, then the rigid skin. For example, the same tool can be used to drill the laminated skin and the honeycomb core, but with different forces or speeds and feeds, or the drill bit can be changed after drilling the laminate, to drill the honeycomb thickness. When opening the 2nd skin, care must be taken not to delaminate it, either by supporting...
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Machining sandwich structures
Laser cutting
Standards and norms
French Standards Association (AFNOR)
- Tamis de contrôle. Exigences techniques et vérification. Partie 1 : tamis de contrôle en tissus métalliques - NF ISO 3310-1 - 2000
European standard (EN)
- Sécurité des appareils à laser. Partie 1 : classification des matériels, prescriptions et guide de l'utilisateur - NF EN 60825-1 - 2006
International Organization for Standardization (ISO)
- Tamis...
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Abaqueplast http://www.abaqueplast.fr
ANTB CMS France (Application of new wood technologies) http://www.antb.fr
ATIA Industrie (Assemblages...
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European Composites Day (Paris. Every year) – JEC Group http://www.jeccomposites.com
Journées Nationales sur les Composites (France. Every two years) – AMAC http://www.amac-composites.asso.fr
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Power SHAPE (design and manufacturing software for technical parts and tooling) – DELCAM http://www.delcam.com/
AlphaCAM (machining simulation tool) – MW Programming http://www.mwprogrammation.ch
Act/Cut 3D (CAD/CAM software for 5-axis machining)...
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