B29C70/54

START-UP PROCEDURE FOR A CURING METHOD, CURING METHOD, CURING SYSTEM AND CURING APPARATUS
20230027867 · 2023-01-26 ·

Methods and devices enabling an optimized cure cycle with an optimized control of operation parameters in an autoclave. To monitor the curing and providing a real time control, a sample having sensors for measuring a component parameter which depends from the curing state is placed in the autoclave. A first cure cycle is obtained by modelling the component and its curing, especially by GIM and simulations. Then the actual monitored curing rate and measured properties of the cured sample is compared with the model, and the cure cycle is updated when needed. Further, a similar sample may be used for calibrating the curing during a first component production or during further productions of subsequent components.

Method for producing composite material, fiber base material, and shaping mold for fiber base material

A method for producing a composite material in which a first fabric and a second fabric made from a fiber material are impregnated with a thermosetting resin and integrally molded, wherein a resin flow path through which thermosetting resin flows is provided between the first fabric and the second fabric, and the first fabric and the second fabric are impregnated with thermosetting resin from the resin flow path as well as being impregnated with thermosetting resin from the surface.

Methods and devices for supporting of variety of different pre-cured composite stringers

Provided are methods and devices for supporting of variety of different pre-cured composite stringers after forming and prior to curing. A post-forming processing device comprises a base with a channel for receiving hat portions of different stringers. The device also comprises a support structure, at least partially extending within the channel. The support structure is configured to conform to different hat portions and to retain the shape of these hat portions. For example, the support structure is made from a flexible material, which conforms to any shape variations. In some examples, the support structure is made from a jamming material that is reshaped together with each of the pre-cured composite stringers. A post-forming processing device is used for supporting different pre-cured composite stringers while various operations are performed on these stringers, such as stringer trimming, inspection, installation of bladders and noodles, and the like.

Methods and devices for supporting of variety of different pre-cured composite stringers

Provided are methods and devices for supporting of variety of different pre-cured composite stringers after forming and prior to curing. A post-forming processing device comprises a base with a channel for receiving hat portions of different stringers. The device also comprises a support structure, at least partially extending within the channel. The support structure is configured to conform to different hat portions and to retain the shape of these hat portions. For example, the support structure is made from a flexible material, which conforms to any shape variations. In some examples, the support structure is made from a jamming material that is reshaped together with each of the pre-cured composite stringers. A post-forming processing device is used for supporting different pre-cured composite stringers while various operations are performed on these stringers, such as stringer trimming, inspection, installation of bladders and noodles, and the like.

Molding of fiber blanks into three-dimensional fiber block articles
11559955 · 2023-01-24 · ·

A fiber block molding apparatus comprising: —a mold having a lower part and an upper part forming between them a cavity for forming a fiber blank into a fiber block article upon closing the mold; —a conveyor system for receiving the fiber blank to be molded at a receiving position, transporting the fiber blank via a heater for activation of a binding agent, and delivering the heated fiber blank into the lower part of the mold at a delivery end of the conveyor system, and —a horizontal position shifting arrangement for shifting the horizontal position of the delivery end of the conveyor system relative to the lower part of the mold between a first and a second position to lay the fiber blank on the lower part of the mold.

ASSEMBLIES AND METHODS FOR FORMING FIBER REINFORCED THERMOPLASTIC STRUCTURES

A method for forming a fiber reinforced thermoplastic part may comprise the steps of locating a thermoplastic material over a mold tool, heating the thermoplastic material to a pliable forming temperature, conforming the thermoplastic material to a mold surface of the mold tool, and depositing a plurality of fiber strips over the thermoplastic material.

ASSEMBLIES AND METHODS FOR FORMING FIBER-REINFORCED THERMOPLASTIC STRUCTURES WITH LIGHTNING STRIKE PROTECTION

A method for forming a fiber-reinforced thermoplastic part may comprise the steps of locating a lightning strike protection layer on a mold surface of a mold tool, locating a thermoplastic layer over the mold tool, heating the thermoplastic layer to a pliable forming temperature, conforming the thermoplastic layer to a mold surface of the mold tool, and depositing a plurality of fiber strips over the thermoplastic layer.

ASSEMBLIES AND METHODS FOR FORMING FIBER-REINFORCED THERMOPLASTIC STRUCTURES WITH LIGHTNING STRIKE PROTECTION

A method for forming a fiber-reinforced thermoplastic part may comprise the steps of locating a lightning strike protection layer on a mold surface of a mold tool, locating a thermoplastic layer over the mold tool, heating the thermoplastic layer to a pliable forming temperature, conforming the thermoplastic layer to a mold surface of the mold tool, and depositing a plurality of fiber strips over the thermoplastic layer.

COMPOSITE FLEXIBLE COUPLING
20230228299 · 2023-07-20 ·

A flexible coupling for transmitting torque between parts of a transmission shaft system comprises a tubular section of continuous-fibre-reinforced composite material which has been modified to form a living hinge section with reduced bending stiffness to allow flexion of the tubular section. The tubular section may be modified through the provision of a pattern of formations within the living hinge section. The formations may be in the form of apertures and/or recesses in the continuous-fibre-reinforced composite material to create a plurality of living hinges in the material between, in particular slots and/or grooves.

REFORMABLE MANDREL AND METHOD OF MAKING A COMPOSITE PART USING A REFORMABLE MANDREL

A method for making a composite part using a reformable mandrel, including contouring a reformable mandrel; placing an uncured composite part on the reformable mandrel; curing the uncured composite part; and removing the reformable mandrel, wherein the reformable mandrel includes a core including a transitional state material having a transition temperature, and a sleeve at least partially surrounding the core and including a heat-resistant flexible material having an operational temperature.