Provided is a rotor blade of a wind turbine, wherein the rotor blade includes a trailing edge section with a trailing edge and a leading-edge section with a leading-edge, a root section with a root and a tip section with a tip, a shell which defines the outer shape of the rotor blade and a cavity which is confined by the shell, and a lightning protection system with an internal down conductor extending from the root section of the rotor blade to the tip section of the rotor blade, wherein the internal down conductor is connectable at the root section to a grounding system of the remainder of the wind turbine and at the tip section to at least one tip lightning receptor which is positioned at the surface of the rotor blade. In addition, the rotor blade comprises an electrically insulating tip part.

A manufacturing method for manufacturing a pipe joint including a circular tube-shaped housing and an elastically deformable circular tube-shaped seal member provided at an inner peripheral side of the housing. The pipe joint manufacturing method includes a process of placing the seal member inside a mold in a state in which the seal member is fitted to an outer periphery of a retaining pin, and a process of causing a molten resin to flow into the mold so as to mold the housing in a state in which the seal member is cooled through the retaining pin.

A manufacturing method for manufacturing a pipe joint including a circular tube-shaped housing and an elastically deformable circular tube-shaped seal member provided at an inner peripheral side of the housing. The pipe joint manufacturing method includes a process of placing the seal member inside a mold in a state in which the seal member is fitted to an outer periphery of a retaining pin, and a process of causing a molten resin to flow into the mold so as to mold the housing in a state in which the seal member is cooled through the retaining pin.

Described are methods and systems for identifying processing locations in composite layups. An optical magnetic marker is magnetically supported by a layup tool at a target position, such that a portion of the marker protrudes above the tool processing surface. When a composite layup is placed onto that surface, the protruding portion extends into the layup at a processing location. When the layup is cured, the marker is permanently embedded into the layup. Separating the cured layup from the tool removes the marker from the tool and allows an additional marker to advance into the target position for processing another layup. The embedded marker or, more specifically, marker's reflective surface is used during optical inspection of the layup surface to precisely determine the processing location. In some examples, the marker is consumed while the layup is processed at that location,

A fiber composite structure includes a base structure being formed of a first fiber composite material that includes first fiber bundles embedded in a first matrix material, wherein the base structure includes an opening defined by first fiber bundles which include first sections and a second section that continuously or uninterruptedly interconnects the first sections, wherein the second section forms a bay that defines a part of the circumference of the opening. The fiber composite structure further includes a functional structure positioned in the opening of the base structure and joined with the first fiber composite material of the base structure.

A method for making continuous encapsulated linear lighting is disclosed. In this method, a PCB is placed within a channel, and the channel is dammed by one or more stoppers. The dammed segment is filled and then caused or allowed to cure. The stoppers are then removed from their initial positions and moved along the channel. If one runs out of channel before the desired length of linear lighting is achieved, a second piece of channel is abutted to the previous segment of channel, the PCB is laid into it, and a segment is dammed, filled, and cured. The process continues iteratively until the desired length is achieved or more channel is required. The PCB may initially be cut to the full desired length and applied to the channel piecewise as needed.

A method for making continuous encapsulated linear lighting is disclosed. In this method, a PCB is placed within a channel, and the channel is dammed by one or more stoppers. The dammed segment is filled and then caused or allowed to cure. The stoppers are then removed from their initial positions and moved along the channel. If one runs out of channel before the desired length of linear lighting is achieved, a second piece of channel is abutted to the previous segment of channel, the PCB is laid into it, and a segment is dammed, filled, and cured. The process continues iteratively until the desired length is achieved or more channel is required. The PCB may initially be cut to the full desired length and applied to the channel piecewise as needed.

A composite platform for a fan of an aircraft turbine engine. The platform includes an elongate wall and is configured to extend between two fan blades. The wall includes an aerodynamic outer surface and an inner surface, on which a fastening tab is located, wherein the fastening tab is configured to be attached to a fan disc. The fastening tab is integrally formed with a metal reinforcement which has a plate having an elongate shape and which extends over more than 50% of the longitudinal extent of the wall, the wall being produced by overmolding a resin on the plate so as to be integrated into the wall.

A composite metallic joint assembly may include a composite metal rod having a metal liner and a composite material disposed around the metal liner. A first portion of the composite metal rod may comprise the composite material and the metal liner and a second portion of the composite metal rod may comprise the metal liner exposed at a radially outer surface of the composite metal rod. The metal liner may have a first radial thickness at a first axial position corresponding to the first portion of the composite metal rod and a second radial thickness at a second axial position corresponding to the second portion of the composite metal rod. The second thickness may be greater than the first thickness.

A method for molding a composite pressure vessel liner to secure a boss to the liner is described. The method comprises providing a moldable liner having an end section with a neck and a port. A boss is positioned around the neck of the liner and the liner is heated and pressure is applied to mold the liner to form to the shape of the boss. The angle of the molded liner secures the boss in place around the liner and it is able to withstand high pressures. A tool for molding the liner and a method for using the tool is also described. The tool comprises a tool body and a pipe having external threads. The tool body abuts the liner and the boss. Winding the pipe exerts pressure on the liner, which when heated, forces the liner to mold to the shape of the boss.