Abstract: A method for the production of a closed hollow profile for a vehicle axle including the following steps: a) provision of a board made out of a sheet of metal, wherein the board has at least a length in a longitudinal direction and at least a width in a transverse direction, b) forming of the board, creating an open profile with a channel running in a longitudinal direction of the board, c) forming the lateral surfaces of the board, creating a hollow profile with a circumference and a longitudinal gap and d) joining together the longitudinal gap.

Abstract: A method for producing a formed body includes providing a round or pre-formed semi-finished product of a steel material, and heating the semi-finished product at least in regions to a first temperature. The method further includes forming a hub on the semi-finished product warm at least in regions, for generating a preform having an upper geometric element. The method further includes heating or re-heating the preform having an upper geometric element at least in regions to a second temperature, and forming a bell on the preform having an upper geometric element warm at least in regions, for generating a preform having an upper and at least one lower geometric element. The method further includes heating or re-heating the preform at least in regions to a third temperature, and profiling the preform warm at least in regions for generating a formed body in a third operative step.

Abstract: A method for producing a shaped part may include providing a first layer consisting of a first sheet metal material and at least a second layer consisting of a second sheet metal material, forming a preliminary composite comprising the first layer and the at least second layer, plating the preliminary composite, and forming the preliminary composite to obtain the shaped part using a flow turning, compression or deep drawing method. The plating may be done before or during the forming process. At least one of the first layer or the second layer may be heated for the plating and/or the forming. The shaped part may be formed by compressing the preliminary composite with a pressing body, and the pressing body may be moved parallel or perpendicular to an axis of symmetry during the compression.

Abstract: A device for manufacturing at least one undercut in a sheet-metal profile that is slotted or closed may include an inner core portion and an outer core portion, which together can be inserted within the sheet-metal profile and/or may support a semi-finished sheet-metal product from which the sheet-metal profile is formed. The inner core portion and the outer core portion may have faces that mate with one another such that when the inner core portion rotates or translates relative to the outer core portion, the outer core portion is forced away from the inner core portion. To cause this behavior, the faces may be undulating, inclined, or cam-like, for example. In effect, a cross-sectional profile of the device may be reduced at least for purposes of extracting the device from the sheet-metal profile after the undercuts have been formed.

Abstract: A method may be used to produce a seamless pressure vessel for storing hydrogen. So that such a pressure vessel withstands both very high internal pressures and pressure fluctuations and (low) temperatures and temperature fluctuations and also high mechanical loading, is resistant to embrittlement, and is comparatively lightweight, a round or tubular workpiece may be formed that includes a multi-layer composite sheet metal material comprising a carrier layer made of steel material and a shielding layer resistant to hydrogen embrittlement by a flow forming process into a seamless hollow body, which serves as a semifinished product to be further processed into the seamless pressure vessel. The shielding layer may represent an inner layer of the pressure vessel. During the flow forming of the workpiece, the shielding layer may be retained as a whole-area, uninterrupted layer.

Abstract: A method for the production of a closed hollow profile for a vehicle axle including the following steps: a) provision of a board made out of a sheet of metal, wherein the board has at least a length in a longitudinal direction and at least a width in a transverse direction, b) forming of the board, creating an open profile with a channel running in a longitudinal direction of the board, c) forming the lateral surfaces of the board, creating a hollow profile with a circumference and a longitudinal gap and d) joining together the longitudinal gap.

Abstract: A device for manufacturing at least one undercut in a sheet-metal profile that is slotted or closed may include an inner core portion and an outer core portion, which together can be inserted within the sheet-metal profile and/or may support a semi-finished sheet-metal product from which the sheet-metal profile is formed. The inner core portion and the outer core portion may have faces that mate with one another such that when the inner core portion rotates or translates relative to the outer core portion, the outer core portion is forced away from the inner core portion. To cause this behavior, the faces may be undulating, inclined, or cam-like, for example. In effect, a cross-sectional profile of the device may be reduced at least for purposes of extracting the device from the sheet-metal profile after the undercuts have been formed.

Abstract: The invention relates to a method for producing a seamless pressure vessel for storing hydrogen and also to such a pressure vessel produced by the method.

Abstract: The invention relates to a rotor blade for a wind turbine, comprising a root of the rotor blade and a rotor blade aerofoil. The object of providing a rotor blade which can be easily and inexpensively produced even when of great lengths and which, what is more, enables a system for protection against lightning to be incorporated in a simplified way is achieved, for a rotor blade of the generic kind, by having the rotor blade consist of at least partly a fibre-reinforced plastics composite having metal inserts embedded in the matrix of the fibre-reinforced plastics composite.