Method of making a reinforced composite panel of the cellular-core sandwich type, and a panel obtained by performing such a method

The invention relates to a method of making a reinforced composite panel of the sandwich type having a cellular core. In the method: a stack is formed that is made up of: at least one first skin (110) made of a reinforced thermoplastics material; a first reinforcing ply (120) made of a reinforced th...

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Bibliographische Detailangaben
Hauptverfasser:	VENDANGEOT FRANCIS, HOCHET NICOLAS
Format:	Patent
Sprache:	eng
Schlagworte:	AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS LAYERED PRODUCTS LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT ORNON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM PERFORMING OPERATIONS PRODUCING PARTICULAR ARTICLES FROM PLASTICS OR FROM SUBSTANCESIN A PLASTIC STATE SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDEDFOR SHAPING OR JOINING OF PLASTICS TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION TECHNICAL SUBJECTS COVERED BY FORMER USPC TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS TRANSPORTING WORKING OF PLASTICS WORKING OF SUBSTANCES IN A PLASTIC STATE, IN GENERAL
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Beschreibung
Zusammenfassung:	The invention relates to a method of making a reinforced composite panel of the sandwich type having a cellular core. In the method: a stack is formed that is made up of: at least one first skin (110) made of a reinforced thermoplastics material; a first reinforcing ply (120) made of a reinforced thermoplastics material; a cellular core (130) made of a thermoplastics material; a second reinforcing ply (140) made of a reinforced thermoplastics material; and a second skin (150) made of a reinforced thermoplastics material; each of the first and second reinforcing plies (120, 140) having a surface area that is smaller than the surface area of each of the first and second skins (110, 150), and said first and second reinforcing plies being positioned symmetrically about the plane formed by the cellular core at determined places against said skins; the stack is pre-assembled; the pre-assembled stack is heated in an oven; and said panel is formed by subjecting the heated stack to cold-pressing in a mold, under a pressure lying in the range 1x106 Pa to 3x106 Pa.