Sandwich panel

B - Operations – Transporting – 32 – B

Patent

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Details

B32B 3/28 (2006.01) B32B 3/24 (2006.01)

Patent

CA 2546712

The invention can be defined in its most general form as a building unit, namely the sandwich panel with light core from corrugated sheet material in the form of zigzag crimp, and can be used in aircraft construction, as well as in shipbuilding and construction. Making use of the claimed invention will improve the weight efficiency, the strength and the manufacturability of the panel. The beneficial effect is attained due to the fact that the plane slanting ridges are connected along the protrusion and recess zigzag lines by means of curvilinear parts, whose radius is not less than the core material thickness, whereby along said parts is a line perforation enabling the adhesive material to get into the holes of the perforation in the course of core-skins assembling.

L'invention peut être définie dans sa forme la plus générale comme un élément de construction se présentant comme un panneau en sandwich avec un noyau léger fait d'une matière en feuille ondulée sous la forme de sertissures en zigzag, et peut s'utiliser dans la fabrication d'aéronefs ou le génie naval. L'utilisation de l'invention permet d'améliorer l'efficacité en termes de poids, de résistance et de la facilité de fabrication du panneau. L'effet bénéfique est atteint grâce au raccordement des crêtes d'inclinaison planes le long des lignes en saillie ou en retrait, ménagées en zigzag, au moyen de parties curvilignes dont le rayon est au moins égal à l'épaisseur de la matière de noyau. Le long desdites parties, une perforation en forme de ligne permet à ladite matière adhésive de pénétrer dans les trous de la perforation pendant l'opération d'assemblage noyaux / enveloppes.

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