Tool and method for cutting a hollow profile

B - Operations – Transporting – 21 – D

Patent

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Details

B21D 28/00 (2006.01) B21D 28/14 (2006.01) B21D 28/28 (2006.01) B21D 43/05 (2006.01) B23P 23/00 (2006.01) B21D 26/02 (2006.01)

Patent

CA 2543808

The invention relates to a tool (1) for cutting a hollow profile (2). According to the invention, the tool (1) is designed both for cutting a flange (3) on the hollow profile (2) as well as for deforming the hollow profile (2) according to the internal high-pressure deformation process. The tool (1) comprises at least one cutting device, which runs parallel to the longitudinal extension and which has a cutting edge (5) that can be displaced in a transverse direction of the hollow profile (2). A side (6) of the cutting device (4) facing the hollow profile (2) is provided in the form of a shaping matrix wall (17) against which the hollow profile (2) rests during the internal high-pressure deformation process. In addition, the tool (1) can have an stamping die (11) and a punching die (13), which is formed coaxially thereto whereby, in addition to the cutting and internal high-pressure deformation process, enabling an optional stamping and/or punching of the hollow profile (2).

L'invention concerne un outil (1) permettant la découpe d'un profilé creux (2). Selon l'invention, l'outil (1) permet la découpe d'un flasque (3) sur le profilé creux (2) et le formage du profilé creux (2) selon le procédé de formage par haute pression interne. Cet outil (1) présente également au moins un dispositif de découpe (4) s'étendant parallèlement à la longueur et pourvu d'une arête de coupe (5) qui se règle transversalement au profilé creux (2) et une face (6), tournée vers le profilé creux (2), du dispositif de coupe (4), est réalisée sous la forme d'une paroi matrice (17) destinée au façonnage et avec laquelle, lors du façonnage par haute pression interne, le profilé creux (2) vient en contact. En outre, l'outil (1) présente un outil d'estampage (11) intégré ainsi qu'un poinçon (13) formé coaxialement au précédent de telle manière que non seulement la découpe et le façonnage par haute pression interne puissent être réalisés mais aussi éventuellement un estampage et/ou une perforation du profilé creux (2).

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