Method for producing a sandwich panel and a body component

Details Method for producing a sandwich panel and a body component Method for producing a sandwich panel and a body component

B - Operations, Transporting

32

B

B32B 3/28 (2006.01) B21D 47/00 (2006.01) B32B 3/30 (2006.01) B32B 15/00 (2006.01) B32B 27/00 (2006.01) B32B 38/04 (2006.01) B62D 25/00 (2006.01) E04C 2/32 (2006.01)

Patent

CA 2384078

The invention relates to methods for producing a light component (a sandwich panel or a component for a vehicle body) that is easy to construct. A plurality of cup-like cavities (18) are embodied in a flexible metal foil (16). An outer layer (12, 24) is applied to each side of the flexible metal foil (16). The opening of each cup-like cavity (18) is first covered by an outer layer (12) and the remaining outer layer (24) is then applied to the free ends of the cavities (18). An already formed sheet metal (24) of the body can be connected to the tip surfaces (26) of the cup-like cavities (18) by means of an adhesive (26) for producing a car body component (22), whereby said sheet metal is used as the remaining outer layer.

L'invention vise à permettre la production d'un élément léger, de conception simple (panneau sandwich ou élément de carrosserie automobile). A cet effet, une pluralité d'évidements de type godet (18) sont réalisés dans une feuille métallique flexible (16). Une couche de recouvrement (12, 24) est ensuite appliquée sur chaque côté de ladite feuille métallique (16). Pour chaque évidement (18), on obture tout d'abord l'ouverture par l'intermédiaire d'une couche de recouvrement (12), puis on applique l'autre couche de recouvrement (24) au niveau des extrémités libres des évidements (18). Pour produire un élément de carrosserie automobile (22), on peut assembler l'autre couche de recouvrement, se présentant sous la forme tôle de carrosserie (24) déjà formée, et les surfaces supérieures (26) des évidements (18), au moyen d'un adhésif (20).

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