Abstract: An apparatus for draping knitted fiber fabrics for curved profiled structural parts of fiber composite material includes a mold having a mold surface that corresponds to a portion of the desired profile geometry and curvature of the profiled structural part, a clamping device for tensioning a layer of a knitted fiber fabric along a tensioning line in a prestressed state, and a movement device for producing a relative movement between the mold and the clamped-in fabric layer such that the mold surface moves close to the fabric layer in a direction perpendicular to the tensioning line and, in the further course of the relative movement, pushes through the tensioning line such that the fabric layer completely covers the mold surface. The clamping device is equipped to load the fabric layer during the entire draping operation with a tensile force acting along the tensioning line.

Abstract: The present invention relates to a method of forming a curved prepreg strip or sheet, especially for use in fabricating a composite component. The method includes providing a strip or sheet of prepreg material having reinforcing fibers and drawing or conveying the prepreg material in a travel direction, wherein the material is drawn or conveyed in the travel direction at a speed which differs across a width of the strip or sheet transverse to the travel direction. Similarly, the invention relates to an apparatus for forming a curved prepreg strip or sheet, having: a mechanism for drawing or conveying a strip or sheet of prepreg material in a travel direction, wherein the mechanism is configured to draw or convey the strip or sheet of prepreg material in the travel direction at a speed which differs across a width of the strip or sheet transverse to the travel direction.

Abstract: The present invention relates to a method of forming a curved prepreg strip or sheet, especially for use in fabricating a composite component. The method includes providing a strip or sheet of prepreg material having reinforcing fibres and drawing or conveying the prepreg material in a travel direction, wherein the material is drawn or conveyed in the travel direction at a speed which differs across a width of the strip or sheet transverse to the travel direction. Similarly, the invention relates to an apparatus for forming a curved prepreg strip or sheet, having: a mechanism for drawing or conveying a strip or sheet of prepreg material in a travel direction, wherein the mechanism is configured to draw or convey the strip or sheet of prepreg material in the travel direction at a speed which differs across a width of the strip or sheet transverse to the travel direction.

Abstract: A fiber composite component comprising at least two, first and second partial elements bordering one another, each having a fiber structure and different matrix systems which respectively embed the fiber structure and cure differently from a liquid state is produced by liquifying the matrix system of the first partial element so that it either penetrates irregularly into the region of the bordering second partial element or leaves an unwetted region in the first partial element adjacent the second partial element, and subsequently liquifying the matrix system of the second partial element so that it can be cured abutting the irregular boundary surfaces of the matrix system of the first partial element. The intermeshing or interlocking of the matrix systems with one another and the fibers increase shear strength.

Abstract: An apparatus for draping knitted fiber fabrics for curved profiled structural parts of fiber composite material includes a mold having a mold surface that corresponds to a portion of the desired profile geometry and curvature of the profiled structural part, a clamping device for tensioning a layer of a knitted fiber fabric along a tensioning line in a prestressed state, and a movement device for producing a relative movement between the mold and the clamped-in fabric layer such that the mold surface moves close to the fabric layer in a direction perpendicular to the tensioning line and, in the further course of the relative movement, pushes through the tensioning line such that the fabric layer completely covers the mold surface. The clamping device is equipped to load the fabric layer during the entire draping operation with a tensile force acting along the tensioning line.

Abstract: A device for draping and pre-shaping curved profiled structural components of fiber materials includes at least one shaping tool having a curved shaping face which has a profiled cross-section and which defines the outer contour of the profiled structural component. The device also includes a plurality of unwinding devices each for discharging a web-like fiber material, a device for performing a relative movement between the shaping tool and the plurality of unwinding devices for tangentially winding the web-like fiber materials onto the curved shaping face under tension, and a fixing device for finally fixing the shape of all of the web-like fiber materials wound on the curved shaping face. A method of draping and pre-shaping curved profiled structural components of fiber materials is also disclosed.

Abstract: A device (10) for draping and pre-shaping curved profiled structural components of fiber materials comprises at least one shaping tool (20) having a curved shaping face (36) which has a profiled cross-section and which defines the outer contour of the profiled structural component, a plurality of unwinding devices (12a-12g) each for discharging a web-like fiber material (14a-14g), a device for performing a relative movement between the shaping tool (20) and the plurality of unwinding devices (12a-12g) for tangentially winding the web-like fiber materials (14a-14g) onto the curved shaping face (36) under tension, and a fixing device (22) for finally fixing the shape of all of the web-like fiber materials (14a-14g) wound on the curved shaping face (36).

Abstract: A fiber composite component comprising at least two, first and second partial elements (1, 2) bordering one another, each having a fiber structure (3, 4) and different matrix systems which respectively embed the fiber structure (3, 4) and cure differently from a liquid state, can be produced with an increased stability of the joint between the two partial elements (1, 2) in that first the matrix system of the first partial element (1) is liquefied and thereby penetrates irregularly into the region of the bordering second partial element (2), in that subsequently the matrix system of the second partial element (2) is liquefied and in that the matrix systems are cured. The forming of the irregular boundary surfaces causes an intermeshing or interlocking of the matrix systems with one another, whereby a boundary surface (5) with an increased shear strength is created.