Patent classifications
B29C2043/3647
Collection of process data using in-situ sensors
A system is provided for collecting data during vacuum molding of a composite part using a mold including an air tight, flexible membrane sealed to a tool. The system comprises a plurality of MEMS sensors coupled with the interior of the mold at different locations over the part. Each of the sensors produces signals related to a process parameter, such as pressure within the bag, that is sensed at the location of the sensor.
TOOLS AND METHODS FOR FABRICATION OF THERMOPLASTIC PANELS
A tool for fabrication of a thermoplastic panel includes a sealed vessel, a membrane and a heater. The sealed vessel defines a volume. The sealed vessel includes first and second fluid ports. The membrane is disposed within the volume to define first and second chambers. The first chamber receives a skin and a core of the thermoplastic panel. The first chamber selectively applies a first fluidic pressure to the skin and the core in response to receiving a first fluid via the first fluid port. The membrane abuts a major surface of the thermoplastic panel. The second chamber selectively applies a second fluidic pressure to the membrane in response to receiving a second fluid via the second fluid port. The heater selectively directs heat toward the first chamber. A method for fabrication of the thermoplastic panel is provided. Various examples of thermoplastic panels are also provided.
Diaphragm tool for forming reinforcement fiber tiers into preformed t-shaped profiles
A tool for shaping non-cured reinforcement fibers into a substantially T-shaped profile, comprising a web-shaping tool and a forming tool, wherein the forming comprises an inflatable diaphragm.
Cure tool with integrated edge breather and method of making the same
A tool for curing a composite layup comprises a tool body having a surface adapted to support a composite layup thereon. The tool includes an integrated breather for allowing removal of air from the layup during curing.
Method for manufacturing a cellulose product by a pressure moulding apparatus, pressure moulding apparatus and cellulose product
The present invention relates to a method of manufacturing a cellulose product having a flat or non-flat product shape by a pressure moulding apparatus comprising a forming mould. The forming mould has a forming surface defining said product shape, The method comprises the steps of: arranging a cellulose blank containing less than 45 weight percent water in said forming mould; heating said cellulose blank to a forming temperature in the range of 100 C. to 200 C.; and pressing said cellulose blank by means of said forming mould with a forming pressure acting on the cellulose blank across said forming surface, said forming pressure being in the range of 1 MPa to 100 MPa.
Method for manufacturing a cellulose product, cellulose product forming apparatus and cellulose product
A method for manufacturing a cellulose product, comprising the steps: dry forming a cellulose blank in a dry forming unit; arranging the cellulose blank in a forming mould; heating the cellulose blank to a forming temperature in the range of 100 C. to 200 C.; and pressing the cellulose blank in the forming mould with a forming pressure of at least 1 MPa.
METHOD FOR MANUFACTURING A CELLULOSE PRODUCT BY A PRESSURE MOLDING APPARATUS, PRESSURE MOULDING APPARATUS AND CELLULOSE
The present invention relates to a method of manufacturing a cellulose product having a flat or non-flat product shape by a pressure moulding apparatus comprising a forming mould. The forming mould has a forming surface defining said product shape, The method comprises the steps of:
arranging a cellulose blank containing less than 45 weight percent water in said forming mould; heating said cellulose blank to a forming temperature in the range of 100 C. to 200 C.; and pressing said cellulose blank by means of said forming mould with a forming pressure acting on the cellulose blank across said forming surface, said forming pressure being in the range of 1 MPa to 100 MPa.
BALLISTIC PLATE MATERIALS AND METHOD
Embodiments of the invention provide body armor composite and methods of fabrication. The body armor composite can include at least one strike-face layer, at least one strike-face reinforcement layer, and at least one catchment layer. Some embodiments include body armor composite with a bump guard layer, and a back-face reduction layer. In some embodiments, the fabrication method includes bonding multiple layers to form an armor composite. Some embodiments include an armor production tool including a housing at least two housing portions which form a substantially air-tight chamber when closed. The tool can include a lower flexible membrane forming at least a portion of a mold, and an upper flexible membrane capable of engaging the lower flexible membrane. The tool can include a pressure port for pressurizing the chamber and to move portions of the mold towards each other, and a locking mechanism for locking the two housing portions.
Planarization treatment of pressure sensitive adhesive for rigid-to-rigid substrate lamination
The present invention is a process for performing a planarization treatment of pressure-sensitive adhesive (PSA). The process includes positioning a first substrate onto a support surface of a planarization tool. The process further includes placing at least one layer of PSA onto the first substrate. The process further includes positioning a second substrate onto the layer(s) of PSA. The process further includes applying a pressure to the second substrate via a flexible membrane, said pressure being applied in a generally uniform, unidirectional and localized manner. Further, the applied pressure flattens the PSA between the first substrate and the second substrate for promoting suitability of the PSA for use in rigid-to-rigid lamination processes.
Method and apparatus for contouring composite pre-preg articles
A forming tool and method for its use with flat pre-preg composite laminate assemblies which incorporates a mandrel segmented into multiple forming blocks, the forming blocks sized to receive a draped composite laminate assembly with all portions of the composite laminate assembly spaced from a shaping surface on each block. A spline plate engages the shaping surface of the forming blocks to provide a neutral axis for maintaining the entire composite laminate assembly in tension during forming. In the exemplary embodiments, the draped composite laminate assembly is formed to the forming blocks from the flat composite laminate assembly and maintained in contact with the forming blocks using a vacuum bag. The mandrel forming blocks arc then displaced to a desired curvature on the spline plate.