The present invention relates to a method of manufacturing a wind turbine blade (10). The method comprises arranging one or more shear webs (50, 55) within a first shell half. At least one support frame (80) is fixe to one or more anchoring points (86) on the inside surface (36b) of the first shell half, the support frame comprising a free end (81) for engaging with a lateral surface of the shear web. One or more guide element (74) are fastened to at least one of the lateral surfaces of the shear web such that the guide element extends laterally from the shear web to form a receiving space (88) between the guide element (74) and the shear web (55). The shear webs are then lowered into the first shell half such that the free end (81) of the support frame (80) is received in the receiving space (88) between the guide element (74) and the shear web (55).

The present invention relates to a method of manufacturing a wind turbine blade (10). The method comprises arranging one or more shear webs (50, 55) within a first shell half. At least one support frame (80) is fixe to one or more anchoring points (86) on the inside surface (36b) of the first shell half, the support frame comprising a free end (81) for engaging with a lateral surface of the shear web. One or more guide element (74) are fastened to at least one of the lateral surfaces of the shear web such that the guide element extends laterally from the shear web to form a receiving space (88) between the guide element (74) and the shear web (55). The shear webs are then lowered into the first shell half such that the free end (81) of the support frame (80) is received in the receiving space (88) between the guide element (74) and the shear web (55).

Processes for forming fiber reinforced composite aircraft components, i.e., aircraft components formed of a cured fiber-reinforced resin, are provided. According to specific embodiments, a finished surface of the composite aircraft component can be achieved by providing in-mold coating of the cured fiber-reinforced resin by a dried and cured film layer of a water-based primer paint material to thereby achieve a composite aircraft component having an exterior surface that does not necessarily require further finishing.

Problem: To provide a molded article for laser welding which has excellent visible light transmittance and laser transmittance and in which variation in laser transmittance is suppressed, and an agent for suppressing variation in laser transmittance of a molded article for laser welding.

Solution: A molded article for laser welding comprising a polybutylene terephthalate resin composition containing 100 parts by mass of (A) a polybutylene terephthalate resin, (B) a polycarbonate resin in which the melt viscosity at 300° C. and a shear rate of 1000 sec.sup.−1 is 0.20 kPa.Math.s or greater, and 1 part by mass or greater and 10 parts by mass or less of (C) an epoxy-based compound, the molded article having a thickness at a welded part of 1.3 mm or greater, and an agent for suppressing variation in laser transmittance of a molded article for laser welding, the agent containing an epoxy-based compound.

Problem: To provide a molded article for laser welding which has excellent visible light transmittance and laser transmittance and in which variation in laser transmittance is suppressed, and an agent for suppressing variation in laser transmittance of a molded article for laser welding.

Solution: A molded article for laser welding comprising a polybutylene terephthalate resin composition containing 100 parts by mass of (A) a polybutylene terephthalate resin, (B) a polycarbonate resin in which the melt viscosity at 300° C. and a shear rate of 1000 sec.sup.−1 is 0.20 kPa.Math.s or greater, and 1 part by mass or greater and 10 parts by mass or less of (C) an epoxy-based compound, the molded article having a thickness at a welded part of 1.3 mm or greater, and an agent for suppressing variation in laser transmittance of a molded article for laser welding, the agent containing an epoxy-based compound.

A fiber-reinforced composite material includes a matrix resin, and reinforcing fibers, in which the matrix resin includes a polyaryl ketone resin and a resin having a nitrogen atom in a repeating structural unit. A surface of the fiber-reinforced composite material includes a portion in which a contact angle with water is 60° or less.

Provided herein is a dual cure resin useful for the production of objects by stereolithography, said resin comprising a mixture of: (a) a light-polymerizable component; and (b) a heat-polymerizable component, said heat-polymerizable component comprising: (i) a dicyclopentadiene-containing polyepoxide resin; (ii) a cyanate ester resin; (iii) an epoxy-reactive toughening agent; and (iv) a core shell rubber toughener.

A bonded joint for use in bonding composite materials is provided and includes a composite rib having electrically conductive properties and a composite structure having electrically conductive properties. An electrically conductive preform is provided that facilitates a bond between the composite rib and the composite structure. A mesh composition that bonds the composite rib to the preform and that bonds the preform to the composite structure is provided and is electrically conductive to conduct current between the composite rib and the composite structure.

A bonded joint for use in bonding composite materials is provided and includes a composite rib having electrically conductive properties and a composite structure having electrically conductive properties. An electrically conductive preform is provided that facilitates a bond between the composite rib and the composite structure. A mesh composition that bonds the composite rib to the preform and that bonds the preform to the composite structure is provided and is electrically conductive to conduct current between the composite rib and the composite structure.

The present disclosure is drawn to multi-fluid kits for three-dimensional printing, three-dimensional printing kits, and methods of making three-dimensional printed articles. In one example, a multi-fluid kit for three-dimensional printing can include a fusing agent, a first reactive agent, and a second reactive agent. The fusing agent can include water and a radiation absorber. The first reactive agent can include a first liquid vehicle and an epoxy compound having multiple epoxide groups. The second reactive agent can include a second liquid vehicle and an amine compound having multiple amino groups.