Provided is a method for manufacturing a fiber reinforced resin molded article capable of distributing the pressure without concentration on the vicinity of the resin inlet and so preventing the deformation of a preform, and such a manufacturing device thereof. The method lowers a lower core as a moving core in a lower mold (first mold) (away from a preform) to let resin flow toward the lower mold (first mold). This distributes the pressure concentrated in the vicinity of the resin inlet and prevents deformation of the preform.

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 method for manufacturing a high-pressure tank including a liner and a reinforcing layer covering an outer surface of the liner includes: forming a cylinder member made of a fiber-reinforced resin; forming a pair of dome members made of the fiber-reinforced resin; and forming a reinforcing body that is the reinforcing layer by joining the cylinder member and the dome members. When forming the cylinder member, a resin-impregnated fiber sheet is wound around an outer peripheral surface of a mandrel to form a cylinder body, and a resin-impregnated fiber bundle is then wound so as to overlap the cylinder body.

The present invention relates to a method of manufacturing a blade shell member for a wind turbine blade. The method comprising providing a blade mould for the blade shell member and arranging a number of fibre-reinforced layers on a blade moulding surface of the blade mould. A first primer layer is applied on top of the fibre-reinforced layers, at a pre-determined spar cap region. Furthermore, a pre-manufactured spar cap having an upper surface, a lower surface, a first side surface, a second side surface, a first end surface and a second end surface is arranged in the pre-manufactured spar cap on the spar cap region, such that the lower surface of the pre-manufactured spar cap contacts the first primer layer arranged on the spar cap region. A second primer layer is also applied to the upper surface of the pre-manufactured spar cap before the step of infusing the blade moulding cavity with resin and curing it. The present invention further relates to a method of manufacturing a wind turbine blade, comprising the steps of manufacturing a pressure side shell half and a suction side shell half over substantially the entire length of the wind turbine blade and subsequently closing and joining the shell halves for obtaining a closed shell.

In a method for producing fiber-reinforced plastic parts in a mold and an adhesive layer for carrying out the method, the adhesive layer adhesive force on the mold is greater than the adhesive layer adhesive force on the segment, so that, after a first segment is removed, the adhesive layer remains completely in the mold and after the temperature of the adhesive layer is increased through contact with a melted plastic matrix, the remaining adhesive force is sufficient to adhere at least a second segment. The adhesive layer, introduced into the mold relatively expensively, and removed from the mold and disposed of at further expense, is used repeatedly, not just for a single adhesion operation. The expense for procuring the adhesive layer, its introduction into the mold, removal and disposal remains but through its division over numerous production operations, the total expenditure proportion for each operation decreases dramatically.

In a method for producing fiber-reinforced plastic parts in a mold and an adhesive layer for carrying out the method, the adhesive layer adhesive force on the mold is greater than the adhesive layer adhesive force on the segment, so that, after a first segment is removed, the adhesive layer remains completely in the mold and after the temperature of the adhesive layer is increased through contact with a melted plastic matrix, the remaining adhesive force is sufficient to adhere at least a second segment. The adhesive layer, introduced into the mold relatively expensively, and removed from the mold and disposed of at further expense, is used repeatedly, not just for a single adhesion operation. The expense for procuring the adhesive layer, its introduction into the mold, removal and disposal remains but through its division over numerous production operations, the total expenditure proportion for each operation decreases dramatically.

A method for manufacturing a quadrangular shell having five faces and non-developable trihedral connectors between the faces. Plies having continuous fibers are cut to cover the five faces of the shell outside of the trihedral connector zones. Four connector components consolidated in the shape of the trihedral connectors are obtained. Each of the components includes an integration zone between the plies. Plies are positioned and laid up. The four consolidated components are inserted in the trihedral connection zones by inserting the integration zones between two plies to form an assembly obtain a preform. The preform is placed in a tool and the consolidation of the stack of fibrous plies is performed by subjecting the assembly to a predetermined pressure/temperature cycle.

A method for manufacturing a quadrangular shell having five faces and non-developable trihedral connectors between the faces. Plies having continuous fibers are cut to cover the five faces of the shell outside of the trihedral connector zones. Four connector components consolidated in the shape of the trihedral connectors are obtained. Each of the components includes an integration zone between the plies. Plies are positioned and laid up. The four consolidated components are inserted in the trihedral connection zones by inserting the integration zones between two plies to form an assembly obtain a preform. The preform is placed in a tool and the consolidation of the stack of fibrous plies is performed by subjecting the assembly to a predetermined pressure/temperature cycle.

An embodiment system for molding a plurality of plastic composite material panels to be assembled on a vehicle body includes a coextrusion unit configured to manufacture a multi-layered sheet in which a plurality of resin layers are laminated, a thermoforming unit configured to manufacture a forming sheet having a plurality of panel forming portions partitioned by a forming connection portion by thermoforming the multi-layered sheet, a reinforcing source spraying unit configured to spray a reinforcing source in which a fiber material and a polyurethane compound are mixed toward a preset region on the forming sheet, and a press-molding unit configured to press-mold the forming sheet applied with the reinforcing source to manufacture a composite material panel sheet in which a reinforcing layer is formed on the forming sheet.

A mold assembly for manufacturing a composite part with a stiffener, the mold assembly includes a bottom mold configured to form a first surface of the composite part, wherein the bottom mold has at least one elongated recess configured to form a stiffener in the composite part; a feeder unit having a shape corresponding to the at least one elongated recess, wherein the feeder unit is configured to fit at least partially into the at least one elongated recess; and a top mold configured to form a second surface of the composite part opposite to the first surface. Also a method of manufacturing a composite part using such a mold assembly, which includes draping a flat laminate over the bottom mold and pushing portions of the laminate into the at least one elongated recess.