Patent classifications
B29C70/68
Composite fan blade and manufacturing method thereof
A method of manufacturing a composite fan blade with an outer part and a core includes laying up a plurality of continuous plies to achieve a stack, placing the core on a central portion of the stack of continuous plies to achieve an unfolded preform; folding the contin-uous plies about the core, such that the central portion of the stack folds about the core and the first portion is superimposed to the second portion, to achieve a folded preform; apply-ing pressure to the folded preform to achieve a consolidated curved folded preform; curing the consolidated curved folded preform to achieve the composite fan blade.
Method for manufacturing a part made of composite material
a method for manufacturing a part made of composite material includes the steps of placing, in a mold, a fibrous preform including reinforcing fibers and being resin-impregnated, positioning a prefabricated element in the mold in contact with the fibrous preform at a predefined location of the fibrous preform, the prefabricated element having a predefined form and being produced in composite material comprising partially polymerized resin, compressing the assembly formed by the fibrous preform and the prefabricated element in the mold, heating the assembly formed by the fibrous preform and the prefabricated element in the mold to polymerize the resin and thus binding the prefabricated element with the fibrous preform in order to form the part made of composite material.
Method for Producing a Fiber-Reinforced Plastic Component and Fiber-Reinforced Component
A method for producing a fiber-reinforced plastic component and a fiber-reinforced plastic component. The method includes providing a textile insert having a decoration, inserting the textile insert and a semi-finished fiber product into a pressing tool, and processing the textile insert, the semi-finished fiber product, and a matrix material in the pressing tool to form the fiber-reinforced plastic component. The matrix material is cured during the processing.
In-Mold Composite Surfacing Film
This disclosure relates to an in-mold surfacing film for structural composites, in the form of a thermally curable mul-ti-layer film comprising: (a) a release carrier, (b) a surfacing film layer overlying the release carrier, wherein the surfacing film layer comprises an OH-functional polyurethane and a thermally activatable curing agent which can react with the OH groups at a temperature higher than 120° C., and (c) a release liner. Also disclosed is a method for preparing a composite article in-mold using a prepreg and the multi-layer film.
TOOL FOR CURING A COMPOSITE COMPONENT
The present invention provides a tool 1 for curing a composite component, the tool comprising a lay-up surface 8 for laying-up layers of an uncured composite component, a cover assembly 9 for moving in relation to the lay-up surface to cover a layed-up uncured composite component on the lay-up surface, the cover assembly comprising a sealable cover for sealing around the uncured composite component on the lay-up surface to form a sealed zone, and a vacuum port 25 for providing a vacuum to the sealed zone, wherein the tool further comprises at least one heating element 15, 53 within the sealed zone for heating the uncured composite component. The invention also provides a method of manufacturing a composite component and a composite component. The composite component may form at least part of a piece of aircraft furniture, such as an aircraft seat shell.
Microwire array devices and methods for fabricating polymeric sheets containing microwires
A method for fabricating polymeric sheets containing microwires includes encapsulating at least a portion of individual lengths of a plurality of microwires in a non-conductive polymeric sheet while the microwires are attached to the substrate. The microwires are then detached from the substrate without removing the microwires from the polymeric sheet. The detaching step forms a separated polymeric sheet containing the detached microwires. Individual detached microwires of the plurality are approximately perpendicular to the separated polymeric sheet. A microwire array device includes a non-conductive polymeric sheet and a plurality of microwires. Individual microwires of the plurality have an independent length at least partially encapsulated by the polymeric sheet, are approximately perpendicular to the polymeric sheet, and contain magnetic ferrite.
MANUFACTURING METHOD AND SYSTEM FOR MANUFACTURING A CONTINUOUS FIBER REINFORCED COMPOSITE PART
To achieve a composite material part with a fully load adapted 3D fiber reinforcement with low costs for tools and process, a method is provided for manufacturing a part made of composite material with a continuous fiber reinforcement. The method comprises the steps of providing a body with tubular cavities and having at least one first portion made from a first polymer material and at least one second portion made from a second polymer material, introducing resin and continuous fibers into the tubular cavities, and removing at least a part of the second polymer material.
MANUFACTURING METHOD AND SYSTEM FOR MANUFACTURING A CONTINUOUS FIBER REINFORCED COMPOSITE PART
To achieve a composite material part with a fully load adapted 3D fiber reinforcement with low costs for tools and process, a method is provided for manufacturing a part made of composite material with a continuous fiber reinforcement. The method comprises the steps of providing a body with tubular cavities and having at least one first portion made from a first polymer material and at least one second portion made from a second polymer material, introducing resin and continuous fibers into the tubular cavities, and removing at least a part of the second polymer material.
PEEL PLY FOR ELONGATE COMPOSITE MATERIALS
An assembly (113) for composite manufacture is provided. The assembly comprises a cured resin impregnated reinforcement material (112) comprising a fibre component and a resin matrix component, in which the resin matrix component comprises polyurethane, the assembly having a length to width ratio of at least 5:1, and the assembly defining a longitudinal direction (L) along its length; and a peel ply (116) in contact with the cured resin impregnated reinforcement material (112), the peel ply (116) comprising a woven layer having a plurality of longitudinal fibres (118) extending in the longitudinal direction (L); and a plurality of transverse fibres (120) extending in a transverse direction (T) normal to the longitudinal direction (L); in which the areal density of the plurality of transverse fibres (120) is higher than the areal density of the plurality of longitudinal fibres (118).
Method for the production of fiber composite component
A method produces a fiber composite component according to which a fiber arrangement having carbon fibers as reinforcing fibers is arranged on a carrier material having a fibrous material in order to form a structure. A covering layer having a non-conductive material is arranged on the structure. The carbon fibers are arranged largely in the load path direction of the fiber composite component to be produced, and regions of the fiber composite component to be penetrated by electromagnetic signals and/or waves are configured such that they are largely free of carbon fibers.