B - Operations – Transporting – 23 – D
Patent
B - Operations, Transporting
23
D
B23D 21/00 (2006.01) B21D 26/02 (2006.01)
Patent
CA 2543691
The invention relates to a method for simultaneously producing at least two separate workpieces (6, 7) by means of internal high pressure forming. According to said method, a blank is inserted into a form tool (2), the inner wall (3) of said blank comprising at least one dividing gap (8) which is respectively arranged between two negative moulds (4, 5), extends over the entire circumference of the workpieces (6, 7) and is defined by two interspaced, free cutting edges (9, 10). During the forming, the blank penetrates the region of the at least one dividing gap (8) such that the cutting edges (9, 10) respectively cut out a section (15) between two workpieces (6, 7).
La présente invention concerne un procédé de fabrication simultanée d'au moins deux pièces séparées (6, 7) par formage intérieur haute pression. Selon ledit procédé, une ébauche est insérée dans un outil de formage (2) dont la paroi intérieure (3) comporte au moins une fente de séparation (8), disposée entre deux moules négatifs (4, 5), s'étendant sur l'ensemble de la périphérie des pièces (6, 7), délimitée par deux arêtes de coupe libres (9, 10), espacées l'une de l'autre. Lors du formage, l'ébauche pénètre dans la zone de la ou des fentes de séparation (8) de manière que les arêtes de coupe (9, 10) découpent une section (15) entre deux pièces (6, 7).
Aue Thomas
Schwarz Stefan
Daimlerchrysler Ag
Kirby Eades Gale Baker
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