Processes for forming fiber reinforced composite aircraft components, i.e., aircraft components formed of a cured fiber-reinforced resin, are provided. According to specific embodiments, a finished surface of the composite aircraft component can be achieved by providing in-mold coating of the cured fiber-reinforced resin by a dried and cured film layer of a water-based primer paint material to thereby achieve a composite aircraft component having an exterior surface that does not necessarily require further finishing.

The invention concerns a method for producing a carbon fibre, that comprises a step of preparing a continuous fibre made of cellulose from cotton fabrics, by extracting, from these fabrics, cotton in the form of short, discontinuous fibres, and implementing a solvent spinning process; this step being followed by a step of carbonising said obtained continuous fibre made from cellulose, in order to form a carbon fibre. This carbon fibre can be used, in particular, for producing articles made from composite material made from carbon fibres and polymer organic resin.

Forming systems and assemblies as disclosed herein comprise a composite material comprising a structural component and a resin component combined with the reinforcing component. A forming element is disposed within the composite material and has a coefficient of thermal expansion that is greater than that of the composite material. The forming element is positioned to provide a desired integral structural reinforcement and/or surface feature to the composite. The composite material may comprise one or more passages extending from a surface thereof to the forming element. The composite material may be cured by heat to take a set configuration and then allowed to cool. The cooling of the composite material and the forming element enables the forming element to contract relative to the composite material and become delaminated therefrom to facilitate easy removal, and thereby provide an improved method and assembly for making structural reinforcing features in composite structures.

The present invention relates to fiber composite plastic (11, 13) comprising a polymer (40, 41) and at least one textile (50), which has at least one palpably inhomogeneous surface (60, 61) with a textile structure and is entirely surrounded by polymer (40, 41), wherein the fiber composite plastic (11, 13) has at least one palpably inhomogeneous surface (60, 61), wherein inhomogeneities of this fiber composite plastic surface are caused by the textile structure, and a method for producing the fiber composite plastic (11, 13).

The present invention relates to fiber composite plastic (11, 13) comprising a polymer (40, 41) and at least one textile (50), which has at least one palpably inhomogeneous surface (60, 61) with a textile structure and is entirely surrounded by polymer (40, 41), wherein the fiber composite plastic (11, 13) has at least one palpably inhomogeneous surface (60, 61), wherein inhomogeneities of this fiber composite plastic surface are caused by the textile structure, and a method for producing the fiber composite plastic (11, 13).

A composite structure manufacturing method comprising: a lamination step in which a plurality of fiber-reinforced resin sheets are laminated to form a plate-shaped laminate; a pressing deformation step in which a third roller or similar, which rolls along a plate surface of the laminate, is used to press the plate surface of the laminate, thereby forming a recessed section or a protruding section in a prescribed section of the laminate; a short direction deformation step in which, after the pressing deformation step, the laminate is deformed in the short direction to make the long direction cross-section into a prescribed shape; and a long direction deformation step in which, after the pressing deformation step, the laminate is deformed in the long direction to make the short direction cross-section into a prescribed shape.

Provided is a heating device including: a heating unit that heats a laminate which includes a plurality of sheet-like composite materials including reinforced fiber and thermoplastic resin, and heats, via a first contact surface disposed in contact with the laminate, the thermoplastic resin included in the laminate being in contact with the first contact surface to a softening temperature or higher; a cooling unit that cools, via a second contact surface disposed in contact with the laminate, the thermoplastic resin included in the laminate located outside of the second contact surface to a temperature lower than the softening temperature; and a pressing unit that applies a predetermined pressure to the laminate via the first contact surface and the second contact surface, the second contact surface being disposed so as to surround the first contact surface.

Provided is a heating device including: a heating unit that heats a laminate which includes a plurality of sheet-like composite materials including reinforced fiber and thermoplastic resin, and heats, via a first contact surface disposed in contact with the laminate, the thermoplastic resin included in the laminate being in contact with the first contact surface to a softening temperature or higher; a cooling unit that cools, via a second contact surface disposed in contact with the laminate, the thermoplastic resin included in the laminate located outside of the second contact surface to a temperature lower than the softening temperature; and a pressing unit that applies a predetermined pressure to the laminate via the first contact surface and the second contact surface, the second contact surface being disposed so as to surround the first contact surface.

A system for manufacturing a part includes a mold having a contoured forming surface. The system also includes at least one tension strap, configured to attach to a consolidated laminate sheet, and a heating assembly, positioned relative to the mold and configured to supply heat to the consolidated laminate sheet, when attached to the at least one tension strap, to form a heated consolidated laminate sheet. The system additionally includes a strap retraction mechanism, configured to retract the at least one tension strap, when attached to the consolidated laminate sheet, to force the heated consolidated laminate sheet against the contoured forming surface of the mold. The heating assembly includes a flexible heating element configured to flex to conform to a shape of the heated consolidated laminate sheet as the heated consolidated laminate sheet is forced against the contoured forming surface of the mold.

The present disclosure generally relates to systems and methods for composites, including short-fiber films and other composites. In certain aspects, composites comprising a plurality of aligned fibers are provided. The fibers may be substantially aligned, and may be present at relatively high densities within the composite. For example, the composite may include substantially aligned carbon fibers embedded within a thermoplastic substrate. The composites may be prepared, in some aspects, by dispersing fibers by neutralizing the electrostatic interactions between the fibers, for example using aqueous liquids containing the fibers that are able to neutralize the electrostatic interactions that typically occur between the fibers. The liquids may be applied to a substrate, and the fibers may be aligned using techniques such as shear flow and/or magnetism. Other aspects are generally directed to methods of using such composites, kits including such composites, or the like.