B - Operations – Transporting – 21 – D
Patent
B - Operations, Transporting
21
D
B21D 39/04 (2006.01) B62D 27/02 (2006.01) B21D 26/02 (2006.01)
Patent
CA 2495513
The invention relates to a method for producing a connection (1) between a peripherally closed hollow profiled piece (2) and a hollow part (3). The action of a fluidic internal high pressure assists in positively connecting the hollow profiled piece (2) and the part (3) to one another while forming an overlapping connecting area (15). The aim of the invention is to create a connection (1) between the hollow profiled piece (2) and the hollow part (3) which cannot be pulled apart and is rotationally fixed. To this end, the invention provides that surfaces (11) which are undercut by means of the internal high pressure on the walls (12, 13) of the hollow profiled piece (2) and of the part (3) are formed whereby resulting in the formation of at least one common indentation, which produces the positive engagement, on the walls (12, 13) of the hollow profiled piece (2) and of the part (3). In addition, the hollow profiled piece (2), in the connecting area (15), is widened by the internal high pressure into a cross-sectional shape that differs from a circular shape.
L'invention concerne un procédé permettant de produire un assemblage (1) entre un profilé creux (2) fermé en périphérie et un élément creux (3). Le profilé creux (2) et l'élément (3) sont assemblés mutuellement par liaison de forme, sous l'effet de l'action d'une haute pression intérieure fluidique, de manière à former une zone de jonction (15) recouvrante. L'invention vise à produire un assemblage (1) résistant à l'arrachement et à la torsion, entre le profilé creux (2) et l'élément ceux (3). A cet effet, il est prévu de former des surfaces (11) contre-dépouillées au niveau des parois (12, 13) du profilé creux (2) et de l'élément (3), au moyen de la haute pression intérieure, de sorte à créer un creux commun formant l'assemblage par liaison de forme, au niveau des parois (12, 13) du profilé creux (2) et de l'élément (2) et que sous l'effet de la haute pression intérieure, le profilé creux (2) s'évase, dans la zone de jonction (15), en une forme de section transversale s'éloignant de la forme circulaire.
Daimlerchrysler Ag
Kirby Eades Gale Baker
LandOfFree
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