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Title
Verfahren und Vorrichtung zum zumindest partiellen Umformen eines Werkstückes für ein anschließendes Innenhochdruckumformen und innenhochdruckgeformtes Werkstück
Date Issued
2006
Author(s)
Werner, M.
Patent No
102006028099
Abstract
(A1) Die vorliegende Erfindung betrifft ein Verfahren und eine Vorrichtung zum zumindest partiellen Umformen eines Werkstückes für ein anschliessendes Innenhochdruckumformen, aufweisend einen durch zumindest ein Werkzeug erfolgenden Umformvorgang, durch den eine Ausgangsgeometrie des Werkstückes zumindest in einem Teilbereich eines Werkstückquerschnittes einer durch das Innenhochdruckumformen zu schaffenden Werkstückgeometrie angenähert wird und das Werkstück mit der derart angenäherten Werkstückgeometrie anschliessend durch Innenhochdruckumformen umgeformt wird. Auch betrifft die vorliegende Erfindung ein derart innenhochdruckumgeformtes Werkstück.
DE 102006028099 A1 UPAB: 20080115 NOVELTY - The method for partial forming of a work piece for interior high pressure form, comprises carrying out the forming process via a tool though which a discharge geometry of the work piece is approximated in a sub region of a work piece cross section of the interior high pressure form to create work piece geometries. The work piece cross section is changed by the forming process asymmetrically and symmetrically to a work piece axis (3). The work piece cross section is changed in different radial levels, which are spaced apart from each other in direction of a work piece axis. DETAILED DESCRIPTION - The method for partial forming of a work piece for interior high pressure form, comprises carrying out the forming process via a tool though which a discharge geometry of the work piece is approximated in a sub region of a work piece cross section of the interior high pressure form to create work piece geometries. The work piece cross section is changed by the forming process asymmetrically and symmetrically to a work piece axis (3). The work piece cross section is changed in different radial levels, which are spaced apart from each other in direction of a work piece axis. The tool has a pressing roll (5) with a surface section (4) and the pressing roll is subjected with a force in such a manner that the surface section with the work piece is brought into unit to transform the work piece in a partially transforming step. The pressing roll and the work piece are moved relatively to each other. The surface section of the pressing roll has multi regions of different geometry, by which a definite region is brought into the unit with the work piece by swiveling the pressing roll around a swivel axis (8). The tool has multi pressing rolls, which are aligned in radial direction around the work piece to change the work piece cross section. INDEPENDENT CLAIMS are included for: (1) a device for partial forming of a work piece for interior high pressure form; and (2) an interior high pressure- formed work piece produced from semi-finished product. USE - Useful for partial forming of a tubular work piece for interior high pressure form (claimed). ADVANTAGE - The method increases the cost-efficiency of the forming of a work piece and ensures high flexibility and high quality of the partially formed work piece for interior high pressure form.
Language
de
Patenprio
DE 102006028099 A: 20060619