A pipe fitting having a first body and a second body that together at least partially define a fluid flow passage. The first body defines a first portion of the fluid flow passage that extends from a first end of the fluid flow passage to a first internal opening. The second body defines a second portion of the fluid flow passage that extends from a second internal opening to a second end of the fluid flow passage. The first body has a first interface surface that surrounds the first internal opening, the first interface surface having a plurality of anti-rotation grooves. The second body has a second interface surface that surrounds the second internal opening and engages with the first interface surface. The first internal opening is in fluid communication with the second internal opening. The second interface surface has a plurality of anti-rotation fingers that are each received by and engage with a corresponding one of the anti-rotation grooves. Rotation of the second body relative to the first body is resisted by the engagement of the anti-rotation fingers with the anti-rotation grooves.

Methods and apparatus for molding and joining composite parts are disclosed herein. An example method includes positioning a base mandrel over a tool base, laying up plies of material over the base mandrel and the tool base to form a support structure base layup, curing the support structure base layup to form a support structure base, removing the support structure base from the tool base and the base mandrel, and configuring the support structure base to be a first support structure for use with a first radar assembly or a second support structure for use with a second radar assembly.

A lead with segmented electrodes can be made using one or two mold methods. In one method, segmented electrodes are individually disposed on pins on an interior surface within a mold. Each of the segmented electrodes has at least one opening formed in the exterior surface of the segmented electrode. The lead body is then molded between the electrodes. In a two mold method, segmented electrodes are inserted into electrode slots of a first mold and an interior portion of a lead body is formed. The resulting intermediate arrangement is placed into a second mold to form an exterior portion of the lead body. In another two mold method, a sacrificial ring is formed around the segmented electrodes in a first mold and the resulting intermediate structure is inserted in a second mold to form the lead body. The sacrificial ring is then removed.

The present invention relates to method of manufacturing a wind turbine blade, the method comprising the steps of providing a first shell half and a second shell half, providing a shear web having a first edge and an opposing second edge, and attaching the first edge of the shear web to an inner surface of the first shell half. One or more guide members are mounted onto an inner surface of the second shell half for guiding the shear web, each guide member comprising a hollow body and a guiding surface.

A blade made of a composite material for an aircraft turbomachine fan, the blade comprising means for measuring internal deformations of the blade and means for remotely storing and transmitting signals for measuring the deformation of the blade, which means are connected to the measuring means, the measuring means and the remote storage and transmission means being located in the composite material. The means for measuring can be configured to supply the means for remotely storing and transmitting.

In a first aspect of the invention there is provided a method of making a wind turbine component, the method comprising supporting a layup (14) of fibrous reinforcing material in a mould (12); providing a supply of resin (16); providing a supply of hardener (20) comprising at least a first hardener (20a) and a second hardener (20b), the second hardener being faster than the first hardener; mixing resin with the first and/or second hardener to create a resin mixture (24); supplying the resin mixture (24) to the layup (14) during an infusion process; monitoring one or more process parameters of the infusion process; and controlling the speed of the hardener (20) by varying the relative proportions of the first and second hardeners (20a, 20b) in the resin mixture (24) during the course of the infusion process in dependence upon the one or more process parameters.

A method for controlling a resin molding apparatus includes causing the resin molding apparatus to execute, as a single molding cycle, a series of steps including a molding step that molds a resin portion using a molding unit and a measuring-holding step that measures a resin material using a measuring-holding unit and holds the resin material subsequent to the molding step. The method also includes controlling operation of the resin molding apparatus such that the measuring-holding unit does not measure or hold the resin material in a final one of molding cycles that are executed repeatedly a predetermined number of times.

A system can include a mold for performing during a liquid composite molding process. The mold can receive a fiber material comprising a plurality of fibers, at least some fibers coated with MXene to form a fabric sensor. The system can include a sensor system for measuring piezo-resistance of the fabric sensor when the fiber material is mounted in the mold during a molding process of an item in the mold. The system can include a computing device linked to the sensor system. The computing device can include a processor and a memory. The memory can include instructions that are executable by the processor for causing the processor to: responsive to receiving a plurality of measurements of current values associated with the fabric sensor from the sensor system, determining compaction forces associated with the liquid composite molding process.