A manufacturing method of a turbomachine airfoil, such as an outlet guide vane airfoil, comprising positioning a first fibrous wall preform on a first mold portion, placing at least one core on the first wall preform, positioning a second fibrous wall preform on the core, assembling a second mold portion to the first mold portion so as to form a mold around the first and second wall preforms, applying a hardening treatment to the first and second wall preforms, removing the core, and positioning a reinforcing structure between the first wall preform and the second wall preform.

A composite of metal and carbon-fiber-reinforced plastic according to the present invention comprising a predetermined metal member, a resin layer positioned at a surface of at least part of the metal member and containing an inorganic filler having a thermal conductivity of 20 W/(m.Math.K) or more, and carbon fiber reinforced plastic positioned on the resin layer and containing a predetermined matrix resin and carbon reinforcing fiber present in the matrix resin, the carbon reinforcing fiber being at least one of pitch-based carbon reinforcing fiber having a thermal conductivity of 180 to 900 W/(m.Math.K) in range or PAN-based carbon reinforcing fiber having a thermal conductivity of 100 to 200 W/(m.Math.K) in range, a content of the inorganic filler in the resin layer being 10 to 45 vol % in range with respect to a total volume of the resin layer, a number density of the inorganic filler present in a region of a width X ?m from an interface of the resin layer and the carbon fiber reinforced plastic in a direction of the resin layer being 300/mm.sup.2 or more, where X ?m is an average particle size of the inorganic filler.

A golf club head includes a face, a club head body, and a hosel. The hosel has a tubular hosel body extending along a longitudinal axis and defining a bore. The bore is configured to receive a golf club shaft or a shaft adapter. The tubular hosel body is molded from a polymeric material that includes a resin and a plurality of fibers, each fiber has a length of from about 0.01 mm to about 12 mm.

A turbomachine blade includes a blading made of composite material with a fibrous reinforcement densified by a matrix and a metal leading edge formed by a metal foil, the foil having an intrados fin and an extrados fin which extend respectively over intrados and extrados faces of the blading by conforming to an airfoil of the blade, wherein the blade also includes at least one unidirectional fabric ply made of composite material on the leading edge between the blading and the metal foil, each unidirectional fabric ply extending at least partially over the intrados and extrados faces of the blading.

A fiber reinforced composite component may include interleaved textile layers and ceramic particle layers coated with matrix material. The fiber reinforced composite component may be fabricated by forming a fibrous preform and densifying the fibrous preform. The fibrous preform may be fabricated by forming a first ceramic particle layer over a first textile layer, disposing a second textile layer over the first ceramic particle layer, forming a second ceramic particle layer over the second textile layer, and disposing a third textile layer over the second ceramic particle layer.

A fibrous preform of a turbomachine component has a three-dimensional weave formed by a plurality of woven strands, wherein, in a shear plane of the component, all or part of the strands present in this plane have fibers forming an angle between 10? and 50? with their centerline.

The disclosure provides a process for manufacturing a tread molding element configured to mold at least a portion of a tire tread, the process comprising the steps of modeling a three-dimensional shape of a tread molding element through a modeling program that can be recognized by a 3D printer; providing one or more plastic compositions comprising one or more thermoplastic polymers having a melting point of at least 180? C.; forming a tread molding element by 3D printing from the one or more plastic compositions; and optionally annealing the tread molding element.

A method of forming a net shape preform for a high performance ballistic helmet includes preparing one or more full prepreg plies, preparing one or more filler prepreg plies, wherein a shape and orientation of one filler prepreg ply of the one or more filler prepreg plies is different from a shape and orientation of another filler prepreg ply of the one or more filler prepreg plies, layering the one or more full prepreg plies with one or more filler prepreg plies to form a ply stack and deforming a portion of the ply stack while constraining the ply stack by applying in-plane tensional force to the ply stack to form the net-shape preform.

A driveshaft has an elongated monolithic composite tube with a front joint at one end thereof and a rear joint at an opposite end thereof. The tube has an inner layer formed of glass fibers coaxially wound on top of one other. The tube has outer layer wound directly on the inner layer. The outer layer is formed substantially of carbon fibers. A ratio of a thickness of the outer layer to the thickness of the inner layer is between 0.8 and 1.2.

The present invention aims to provide a sheet-shaped reinforcing fiber substrate having shear deformability to conform to a three dimensional shape and restraining the generation of waste pieces to realize a large improve in the yield of reinforcing fibers and a reduction in production cost, and also provide a production method therefor. The sheet-shaped reinforcing fiber substrate has a layered structure containing N layers (N being an integer of 3 or more) produced by arranging a plurality of reinforcing fiber bundles with appropriate lengths and meets the requirements (1) to (5) given below: (1) in each layer, mutually adjacent reinforcing fiber bundles are aligned parallel to each other in such a manner that the clearance between mutually adjacent reinforcing fiber bundles is not smaller than the width of the reinforcing fiber bundles, (2) the reinforcing fiber bundles in a layer and those in the layer located immediately above or below and in contact therewith are aligned in different directions, (3) the length direction of the reinforcing fiber bundles in a randomly selected odd-numbered no'th layer (no being an odd number not less than 3 and not more than N) and the length direction of the reinforcing fiber bundles in the (no-2)'th layer are parallel to each other and the reinforcing fiber bundles in each layer do not overlap each other, (4) in the case where N is 4 or more, the length direction of the reinforcing fiber bundles in a randomly selected even-numbered ne'th layer (ne being an even number not less than 4 and not more than N) and the length direction of the reinforcing fiber bundles in the (ne-2)'th layer are parallel to each other and the reinforcing fiber bundles in each layer do not overlap each other, and (5) mutually intersecting reinforcing fiber bundles are joined together in at least part of the intersection regions where a reinforcing fiber bundles in any of the odd-numbered layers directly overlaps a reinforcing fiber bundle in any of the even-numbered layers.