Method for producing metal housings, which are comprised of...

Details Method for producing metal housings, which are comprised of... Method for producing metal housings, which are comprised of...

B - Operations, Transporting

60

T

B60T 17/08 (2006.01) B21D 39/04 (2006.01)

Patent

CA 2590641

The invention relates to a method for producing metal housings (20), which are comprised of at least two housing parts (4, 12), of units mounted in vehicles, particularly in goods-carrying vehicles, by: applying a corrosion prevention layer comprising zinc or a zinc-containing alloy onto an outwardly pointing surface of at least one housing part (4, 12) with a subsequent passivation, and; b) effecting a positive overlapping of an edge (30) of housing part (4) by the edge (52) of housing part (12) by means of a relative movement of the housing parts (4, 12) being reciprocally aligned beforehand with regard to a stamp (60), which plastically deforms the edge (30) of housing part (4) and/or the edge (52) of the other housing part (12).

L'invention concerne un procédé permettant de produire des boîtiers (20) en acier, de groupes montés dans des véhicules, notamment des véhicules utilitaires, qui se composent d'au moins deux éléments de boîtier (4, 12). Selon ce procédé, il est prévu a) d'appliquer une couche anticorrosion à base de zinc ou d'un alliage contenant du zinc, au moins sur une surface dirigée vers l'extérieur d'au moins un élément de boîtier (4, 12), puis d'effectuer une passivation; b) de produire un recouvrement par liaison de forme d'un bord (30) d'un élément de boîtier (4), par le bord (52) de l'autre élément de boîtier (12), par mouvement relatif des éléments de boîtier (4, 12) dirigés antérieurement l'un contre l'autre, par rapport à un poinçon (60), qui induit une déformation plastique du bord (30) d'un élément de boîtier (4) et/ou du bord (52) de l'autre élément de boîtier (12).

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