Patent classifications
B29C51/28
PYROMETER CONTROL FOR HOT DRAPE FORMERS
An apparatus for hot drape forming a part includes a plurality of pyrometers, a bladder covering a formable material, and a pyrometer control medium positioned between the plurality of pyrometers and the formable material. The plurality of pyrometers are configured to measure a temperature of the pyrometer control medium.
PYROMETER CONTROL FOR HOT DRAPE FORMERS
An apparatus for hot drape forming a part includes a plurality of pyrometers, a bladder covering a formable material, and a pyrometer control medium positioned between the plurality of pyrometers and the formable material. The plurality of pyrometers are configured to measure a temperature of the pyrometer control medium.
FIBRE FLATTENING
A method of forming a fibre article, comprising: providing a former having a contoured forming surface; locating a fibre preform between a first diaphragm and a second diaphragm, the second diaphragm being offset from the forming surface; drawing a vacuum between the first and second diaphragms so as to hold the preform captive between the diaphragms; displacing the second diaphragm towards the former so as to bring the second diaphragm into partial contact with the former; drawing a vacuum between the second diaphragm and the former so as to bring at least a part of the second diaphragm adjoining the preform into conformity with the forming surface; and setting the preform in its configuration; wherein: the fibre preform comprises one or more substantially inextensible fibres extending linearly in a first direction; the forming surface comprises a concavity and prominences on either side of the concavity; and the step of bringing the second diaphragm into partial contact with the former comprises bringing the second diaphragm into contact with the prominences whilst the second diaphragm does not fully contact the concavity and with the substantially inextensible fibres extending from one of the prominences to the other.
FIBRE FLATTENING
A method of forming a fibre article, comprising: providing a former having a contoured forming surface; locating a fibre preform between a first diaphragm and a second diaphragm, the second diaphragm being offset from the forming surface; drawing a vacuum between the first and second diaphragms so as to hold the preform captive between the diaphragms; displacing the second diaphragm towards the former so as to bring the second diaphragm into partial contact with the former; drawing a vacuum between the second diaphragm and the former so as to bring at least a part of the second diaphragm adjoining the preform into conformity with the forming surface; and setting the preform in its configuration; wherein: the fibre preform comprises one or more substantially inextensible fibres extending linearly in a first direction; the forming surface comprises a concavity and prominences on either side of the concavity; and the step of bringing the second diaphragm into partial contact with the former comprises bringing the second diaphragm into contact with the prominences whilst the second diaphragm does not fully contact the concavity and with the substantially inextensible fibres extending from one of the prominences to the other.
Composite structures and methods of forming composite structures
Composite structures and methods of forming composite structures are provided. The composite structures can include one or more composite structure components. Each composite structure component is formed from a composite panel that includes one or more sheets of material. The sheets of material include a thermoplastic material and a plurality of reinforcing fibers. A composite panel can be formed in three dimensions to form a composite structure component. Multiple composite structure components can be fused to one another to form a composite structure. In addition, each composite structure component and the composite structure formed therefrom can include an aperture. An interior volume can be formed between adjacent composite structure components. Methods for forming a composite structure can include a step of simultaneously molding and fusing composite structure components.
Methods and apparatus for reconfigurable heated mold
Layers of composite material, such as pre-peg, may be deposited on a reconfigurable polymer mold. An array of actuated pins may deform the polymer mold into a desired 3D shape. The composite material may be inside a cavity formed by the mold and a flexible bag. A vacuum pump may remove air from the cavity, creating a partial vacuum. The partial vacuum may cause the flexible bag to press the composite tightly against the mold, so that the composite conforms to the desired 3D shape. One or more heating elements may be embedded in the mold and may heat the composite to cure the composite. Ball joints may connect the actuated pins to the polymer mold.
Enhanced systems that facilitate vacuum bag curing of composite parts
Systems and methods are provided for enhancement of vacuum bagging processes for a composite part. One system includes dispensers configured to dispense materials onto a forming tool for a composite part, and a controller. The controller is able to identify a location for placing the composite part on the tool, and to direct the dispensers to lay up a laminate of constituent material for the composite part at the location. The controller is also able to direct the dispensers to spray vacuum bag material atop the laminate to form a vacuum bag that covers the laminate.
Pyrometer control for hot drape formers
An apparatus for hot drape forming a part includes a plurality of pyrometers, a bladder covering a formable material, and a pyrometer control medium positioned between the plurality of pyrometers and the formable material. The plurality of pyrometers are configured to measure a temperature of the pyrometer control medium.
Pyrometer control for hot drape formers
An apparatus for hot drape forming a part includes a plurality of pyrometers, a bladder covering a formable material, and a pyrometer control medium positioned between the plurality of pyrometers and the formable material. The plurality of pyrometers are configured to measure a temperature of the pyrometer control medium.
FABRICATION METHOD AND APPARATUS FOR CREATING LARGE AND/OR COMPLEX THERMOPLASTIC COMPOSITE COMPONENTS
This disclosure is directed to a thermoplastic composite material forming method and tooling used to perform the method. More specifically, this disclosure is directed to a method of fabricating large, complex thermoplastic composite part shapes with a consolidation tool having a conformable tooling bladder that heat thermoplastic material in the tool and provide thermoplastic material consolidation pressure in directions in the tool to form a part shape of thermoplastic composite material. A novel tooling concept is used to fabricate large, complex thermoplastic composite part shapes which are not easily producible using traditional methods. The tooling concept employs a consolidation tool that provides a method to apply thermoplastic material consolidation pressure by a conformable tooling bladder that provides thermoplastic material consolidation pressure in directions in the tool that are not achievable by conventional clamshell type molds where the mold parts move in substantially vertical tool opening and tool closing directions.