Voestalpine Metal Forming Gmbh

Voestalpine Stahl Gmbh

Voestalpine Automotive Gmbh

Reiner Kelsch

Christian Rouet

Dieter Hartmann

Carola Eyssell

Rüdiger Heinritz

Gerhard Mayrhofer

Johannes Riegler

Andreas Sommer

Robert Vehof

Tobias Hägele

Peter Weber

Robert Schneider

Armin Meier

Falk Leitner

Mathieu Brand

A method for manufacturing a semifinished product or component is disclosed in which a metal support embodied as a split strip is covered with at least one prepreg containing a thermally cross-linkable thermosetting matrix with endless fibers, the thermosetting matrix of the prepreg is pre-cross-linked by means of heating, and the metal support covered with the pre-cross-linked prepreg is formed into a semifinished product or component by means of roll forming. In order to enable plastic deformation in fiber-reinforced regions of the metal support, it is proposed that during the pre-cross-linking of the thermosetting matrix of the prepreg, its matrix is transferred into a viscosity state that is higher than its minimum viscosity and prior to reaching its gel point, the prepreg is formed together with the metal support.

Method for manufacturing a semifinished product or a component made of metal and fiber composite

A method for manufacturing a semifinished product or part is disclosed in which a metal support embodied as a metal sheet or blank is covered with at least one prepreg containing a thermally cross-linkable thermosetting matrix with endless fibers, the thermosetting matrix of the prepreg is pre-cross-linked by means of heating, and the metal support covered with the pre-cross-linked prepreg is formed into a semifinished product or part by means of deep drawing or stretch deep drawing. In order to enable plastic deformation in fiber-reinforced regions of the metal support, it is proposed that during the pre-cross-linking of the thermosetting matrix of the prepreg, its matrix is transferred into a viscosity state that is higher than its minimum viscosity and prior to reaching its gel point, the prepreg is formed together with the metal support.

Method for manufacturing a semifinished product or a part made of metal and fiber composite

A method for producing partially hardened steel components in which a blank composed of a hardenable sheet steel is subjected to a temperature increase and shaped into a component; the component is transferred to a tool in which the heated component is cooled and thus quench hardened; during the heating of the blank or component in order to achieve the temperature increase to a temperature required for the hardening in regions that are to have a lower hardness and/or higher ductility, cooling elements are spaced apart from the surface by a small gap; the cooling element is dimensioned so that the thermal energy acting on the region that remains ductile flows through the component into the cooling element, characterized in that in order to space the cooling element apart from the component, micro-nubs or knobs are used, which are distributed over the area of the cooling element.

Cooling element with spacer

A forming tool () for the production of a semifinished product or end product from a metal sheet () has a first tool part () that has an upper tool part (), a die (), and at least one first floating bearing (), which attaches the die () to the upper tool part () with bearing play () in the bearing plane (), for equalization of its thermal contraction or expansion, has a second tool part () that has a lower tool part (), a punch (), and at least one second floating bearing (), which attaches the punch () to the lower tool part () with bearing play () in the bearing plane (), for equalization of its thermal contraction or expansion, wherein punch () and die () work together for forming of the metal sheet (). The two tool parts () each have at least one further bearing (), which bearings attach die () and punch () to the upper tool part () or lower tool part () without play in the bearing plane ().

Forming tool for the production of a semifinished product or end product

The invention relates to a shaping tool which is used to shape a workpiece, in particular, a sheet steel component, comprising at least two shaping tool halves. Contoured regions are provided in the region of the shaping tool halves in order to give the workpiece a corresponding contour, at least in sections. Each shaping tool half has a shaping surface shell which is oriented towards the workpiece and a support shaping half. The shaping surface shell is arranged on the support shaping half and comprises a shaping surface, which is oriented towards the workpiece, and a rear side which is oriented away from the workpiece. The support shaping half comprises a contoured area which essentially corresponds to the contour of the workpiece which is to be produced and the contoured area is surrounded by a flange area. Grooves are provided in the contoured area in the region of the rear side of the shaping surface shell. The support shaping half comprises receiving surfaces which receive the support shaping half in a positive fit and the receiving surfaces and the grooves form cooling channels. The support shaping half comprises supply channels and discharge channels such that a coolant can be guided through the channels.

Shaping tool

Growing community of inventors

Mutlangen, Germany

Reiner Kelsch