A three-dimensional printing method of composite materials comprises at least the following phases: supply of one three-dimensional printing device; supply of one thermosetting resin and of one filament comprising one fiber; feeding of the thermosetting resin and of the filament inside the three-dimensional printing device; impregnation of the filament in the thermosetting resin to obtain a composite material wherein the filament is wrapped by the thermosetting resin; extrusion of the composite material onto a work surface to form one layer; heating of the composite material to induce a cure of the thermosetting resin; wherein the heating phase comprises a step of direct heating of the filament and a step of indirect heating of the thermosetting resin by heat conduction from the filament.

A method for reducing the resistivity of a thermoplastic film containing carbon nanotubes includes connecting an electric power supply to the thermoplastic film containing carbon nanotubes and passing electric current through the thermoplastic film containing carbon nanotubes to heat the thermoplastic film to an elevated temperature and align carbon nanotubes within the thermoplastic film. The thermoplastic film is solid at room temperature.

A method for controlling a repair of at least one non-autonomic extrinsic self-healing material in an object, the method including: triggering, by a server, at least one sensor element embedded in the at least one non-autonomic extrinsic self-healing material to initiate a testing procedure, receiving a result of the testing procedure, analyzing the result, determining capability information of the sensor element with an inquiry, receiving the capability information, determining a triggering instruction to the sensor element on the basis of the capability information, delivering the triggering instruction to utilize an applicable capability of the sensor element to the sensor element. A server implementing the method and a system are also described.

A mold for forming a flange of a wind turbine blade comprising a first flange portion including a plurality of lamina and having a generally planar shape and a second perpendicular flange including a plurality of lamina. A plurality of copper wires are disposed within the lamina for conducting heat delivered from a base portion through the first and second flange portions. The mold is free of fluid conduits with the flange portions moveable relative to the base portion.

A method of creating a three-dimensionally shaped object, the method having: a creation step for creating image data for printing an image on a thermally expandable sheet; a printing step for printing an image on the thermally expandable sheet on the basis of the image data created in the creation step; and a protuberation step for partially protuberating the thermally expandable sheet via thermal expansion by irradiating light toward the image printed on the thermally expandable sheet in the printing step. The creation step creates image data such that a grayscale of an image is set so that a fastening portion that fastens a thermally expandable sheet is either intermittently or continuously surrounded by a region where a protuberation height resulting from the thermal expansion is high.

A method for forming a composite material including reinforcing fibers includes connecting end portions of the reinforcing fibers with equipotential materials to form an electroconductive loop including the reinforcing fibers in the composite material before reaction; and applying a magnetic field in a direction intersecting a plane formed by the electroconductive loop.

The present disclosure is directed to a method for forming a cured composite component. The method includes laying one or more layers of uncured composite material onto a conductive core. An electric current is supplied to the conductive core to resistively heat the one or more layers of uncured composite material to a temperature sufficient to cure the one or more layers of uncured composite material into the cured composite component.

Method of manufacturing a product comprising fiber reinforced polymer material, the method comprising the steps of: providing 10 carbon fibers being embedded in a thermosetting resin, heating 20 the thermosetting resin up to its cure temperature by a current flowing through at least a part of said carbon fibers, letting convert 30 the thermosetting resin to a thermoset polymer.

The invention is further directed to a device for performing the method and to a composite sandwich panel structure manufactured according to the method.

A composite material incorporates multi-compartment microcapsules that produce heat when subject to a stimulus such as a compressive force or a magnetic field. The stimulus ruptures an isolating structure within the multi-compartment microcapsule, allowing reactants within the multi-compartment microcapsule to produce heat from an exothermic reaction. In some embodiments, the composite material is a laminate used in the manufacture of multi-layer printed circuit boards (PCBs) and provides heat during the curing process of the multi-layer PCBs to ensure a consistent thermal gradient in the multi-layer product.

The present invention sufficiently heats a repairing material while preventing change in quality of a base material provided with the repairing material so as to securely bond the repairing material to a repair target portion. The repair method of the present invention, in order to repair a repair target portion 14 existing in an outer panel 1, includes: a repairing material disposing step of disposing a repairing patch 21 including a resistance heating element 23 and a carbon fiber reinforced resin, and an adhesive 22A including a thermosetting resin before being hardened for bonding the repairing patch 21 on the repair target portion 14; and a heating-hardening step of heating and hardening the thermosetting resin of the adhesive 22A by causing the resistance heating element 23 to generate heat through supply of electricity thereto.