Methods for fabricating a 3D braided material and exemplary 3D braided material for sporting implements are disclosed. The exemplary braids can be incorporated into any sporting implements, such as, baseball bats, lacrosse sticks, hockey sticks, rackets, helmets, and other protective equipment. The example sporting implement can be constructed, partially or entirely, with a braided three dimensional structure. The 3D braided material can be a multi-directional layup having tows oriented in three directions (X, Y and Z) and also at any angle created by the combination of two or three directions. A single woven preform can be formed that can have a near net shape of the formed product, with the fibers oriented in a way that will be optimal for the particular application.

Aspects of the present disclosure include a pickleball paddle that is formed using a plastic or composite molded material. A composite material is wrapped around a center and placed in a mold to form a paddle frame or arranged around a paddle frame. In some embodiments, additional composite material is wrapped at specific positions to tune the balance point and rebound characteristics of the finished paddle The mold is heated to cure the composite material within the mold cavity. Face shells are then added to complete the paddle.

Provided is a method for manufacturing a tank and a manufacturing device thereof that can achieve resin impregnation within a short time. The method wraps fibers in an overlapping manner in a radial direction around an outer surface of a liner such that a first fiber layer (braiding layer) on an outer surface of a dome portion is less dense than a second fiber layer (helical layer) on an outer surface of a straight body portion and such that a portion of a lamina of the first fiber layer, which is less dense, is interposed continuously from the first fiber layer partially between laminae of the second fiber layer, and then impregnates the fiber layer including the first fiber layer and the second fiber layer with a resin.

A method of manufacturing a composite (e.g. fibre-reinforced polymer) connector for a fluid transfer conduit includes: providing a tubular mandrel which extends substantially parallel to a central axis C; providing a former on the tubular mandrel which extends substantially perpendicular to the central axis C; and winding continuous fibre reinforcement, impregnated with a thermosetting polymer, around the mandrel to form a tubular hub portion which extends substantially parallel to the central axis C and over the former to form a flange portion 308 which extends from the hub portion at an angle to the central axis C. Winding the continuous fibre reinforcement over the former includes passing the continuous fibre reinforcement across a first surface of the former that is substantially perpendicular to the central axis C and across a second surface of the former such that the former is encapsulated as a core for the flange portion.

The present application discloses a method of making a preform for use in manufacturing a component made of a composite material. The method includes stitching fibers onto a film to form a fiber bed in a two-dimensional shape, removing the film from the fiber bed, and adjusting the fiber bed into a three-dimensional shape to form the preform.

Grid structure, such as a lattice or grid-stiffened structure and a process of manufacturing such a grid structure. Fiber material is laid up on a base tool to form intersecting ribs defining a grid with a plurality of cavities. In the same step fiber material is laid to form one or more; local substructures. Blocks are placed, at the positions of the cavities. The fiber material of the ribs and. the local substructures is impregnated with a resin. Optionally, one or more layers of fiber material are placed on the base tool and/or over the ribs and the blocks to form an outer skin. The ribs, the local substructure and optionally the outer skin jointly consolidated to form, the grid, structure.

The present disclosure discloses a fiber structure, including a plurality of fiber layers. The plurality of the fiber layers are stacked and arranged in a surrounding manner and are impregnated and cured in sequence. The fiber structure of the present disclosure is high in structural strength and low in mass. The present disclosure further provides a gymnastic apparatus force bearing frame, including the above-mentioned fiber structure, which is beneficial to reducing the weight of the gymnastic apparatus force bearing frame, facilitating the movement, transportation, disassembling, and assembling of the apparatus, and reducing the labor burden of an operator.

A method for producing by pultrusion a hollow main body of a rotary movement transmission shaft made of a composite material, the method including: impregnating a reinforcement; arranging a reinforcing fabric around a pultrusion chuck to wrap the pultrusion chuck, the fabric including circumferential fibers arranged in planes orthogonal to a longitudinal axis of the chuck; and then depositing the impregnated reinforcement around the reinforcing fabric.

A blade for an aircraft gas turbine engine includes, in a longitudinal direction, a blade root, a shank and an aerofoil body, the aerofoil body extending in the longitudinal direction between the shank and a blade tip and in a transverse direction between a leading edge made of metal material and a trailing edge. The blade includes a blade core made of composite material having a three-dimensional woven fibrous reinforcement forming the blade root, the shank and a part of the aerofoil body. The blade also includes a skin made of composite material having a two-dimensional woven fibrous reinforcement surrounding the aerofoil body part of the blade core, the skin being interposed between the leading edge made of metal material and a front edge of the aerofoil body part of the blade core to define a thinned leading edge portion, the skin including one or more two-dimensional woven plies.

A wheel suspension unit of a motor vehicle, for example a trailing arm, the trailing arm produced, at least in part, from a fiber-reinforced plastic. The trailing arm including a molded member or tube formed of braided and/or wound continuous fibers. The continuous fibers of the molded member or tube interlinked with a plastic matrix. The shape of the molded member or tube predefines the basic shape of the trailing arm with the trailing arm being of a curved and/or angled design