Forming tool

B - Operations – Transporting – 21 – D

Patent

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Details

B21D 26/02 (2006.01)

Patent

CA 2548486

The invention relates to a forming tool (1) comprising an engraving (3) that creates a forming chamber (2), into which a workpiece can be introduced. A channel (4 to 7) running through the forming tool (1) connects the forming chamber (2) to the tool environment. To achieve a contoured form, which is independent of the channels (4 to 7) that connect the forming chamber (2) to the tool environment, during the forming of the workpiece, the tool (1) comprises a liquid and gas-permeable insert element (8), which is held in a cavity (9) of the tool (1) and together with a peripheral region (10) that faces the forming chamber (2), forms a section of the engraving (3), and the channel (4 to 7) opens into the insert body (8) outside said peripheral region (10).

La présente invention concerne un outil de formage (1) comprenant une cavité (3) qui définit un espace de formage (2) et dans laquelle on peut introduire une pièce. Un canal (4 à 7) qui s'étend dans l'outil de formage (1) relie l'espace de formage (2) à l'environnement de l'outil. Afin d'obtenir un contour non influencé par la disposition des canaux (4 à 7) qui relient l'espace de formage (2) à l'environnement de l'outil lors du formage de la pièce, l'outil (1) renferme un corps d'insertion (8) qui est perméable aux liquides et aux gaz, est reçu dans un creux (9) de l'outil (1) à proximité de l'espace de formage et forme, avec une zone périphérique (10) faisant face à l'espace de formage (2), une partie de la cavité (3), et le canal (4 à 7) débouche sur le corps d'insertion (8) à l'extérieur de cette zone périphérique (10).

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