Elastomer intensifiers for part manufacture and methods of making elastomeric intensifiers are described herein. An example method of fabricating an intensifier includes: add a mixture to a region of a mold, the mixture including a first amount of an elastomer and a constituent; curing the mixture to form an insert having a shape corresponding to the region of the mold; adding a second amount of the elastomer to the mold and over the insert; and curing the insert and the second amount of the elastomer to form the intensifier.

Various embodiments include an electrical insulation system for an electric motor comprising: a laminated core having slots and wire windings; an surface electrical insulation in the slots surrounding individual wires with a potting compound; and an absorbent material between the individual wires and within the wire winding bounded by surface insulation material. The absorbent material took up liquid impregnation resin during the manufacturing process. The liquid impregnation resin has cured and now forms the potting compound.

Various embodiments include an electrical insulation system for an electric motor comprising: a laminated core having slots and wire windings; an surface electrical insulation in the slots surrounding individual wires with a potting compound; and an absorbent material between the individual wires and within the wire winding bounded by surface insulation material. The absorbent material took up liquid impregnation resin during the manufacturing process. The liquid impregnation resin has cured and now forms the potting compound.

A device for making a molded stair tread is described. The device can have: a base; a pivoting assembly; a molding template connected to the pivoting assembly; a holding device connected to the molding template, the holding device having a clamp jaw and a pivot configured to rotate the holding device relative to the molding template; and a locking mechanism configured to hold the molding template and the holding device in an open configuration such that the holding device can accept a first part of the plastic sheet and configured to release the molding template and the holding device such that the holding device is in a securing configuration that secures, via the clamp jaw, the first part of the plastic sheet to the first side of the molding template at the first longitudinal edge of the molding template. Methods for making the stair tread are described as well as the molded stair tread.

It is disclosed a composite material and a process for producing such a composite reinforced material, comprising the steps of arranging a plurality of layers of reinforcing fibres, impregnating said layers with a resin-based matrix, laminating said layers of reinforcing fibres by addition of pressure and/or heat, placing between said layers of reinforcing fibres an intermediate layer of polymer nanofibers, wherein said intermediate layer of polymer nanofibers is interleaved between said layers of reinforcing fibres by laying a membrane of polymer nanofibers adhering to a backing substrate before said lamination step, said membrane of polymer nanofibers being obtained by direct electrospinning on a backing substrate by a needleless technique, and wherein it is provided an anti-sinking feature before said lamination step, which prevents a early sinking of said membrane of polymer nanofibers into said resin-based matrix.

A co-molded metal lined, resin-impregnated fiber-reinforced part comprises a fiber preform; a metal layer overlying at least a portion of the fiber preform, having a modified surface adherent to thermoset resin; and a thermoset resin surrounding and impregnating the fiber preform and engaging the surface of the metal layer. A method of manufacturing a co-molded thermoset polymer composite with a metallic foil comprises depositing a thin film with a thickness less than 500 nm on the surface of the metal to be bonded with the composite, which includes hybrid organic and metal oxide groups; loading a fiber preform and the metal foil into a cavity of a mold; and injecting a thermoset resin into the mold to surround and impregnate the fiber preform and adhere to the thin film on the foil to form the co-molded composite.

The invention relates to a monolithic structure in composite material manufactured starting from a fiber-reinforced prepreg material and comprises two walls facing each other and at least one interconnection element extending transversely between the walls, connected to them and delimiting with the latter respective elongated cavities; wherein the walls extend symmetrically at opposite sides of a direction; the interconnection element is a rib extending transversely to the aforesaid direction; at least one wall has a sandwich configuration and comprises two panels facing each other and at least one spar member, which extends transversely between the panels, is connected to them, delimits with the latter respective elongated cavities and extends transversally to the rib.

There is provided a method of manufacturing a composite structure of an aircraft. The composite structure includes a skin and a reinforcing material. The method includes, by stacking unhardened composite sheets on a region of a jig adjacent to a holding portion to hold the reinforcing material, forming a skin inner layer including a retainer to retain two end portions of a flange of the reinforcing material in a width direction of the flange. The method includes installing the reinforcing material at the holding portion of the jig so that the two end portions abut upon the retainer. The method includes, by stacking unhardened composite sheets on an outer surface of the flange and on an outer surface of the skin inner layer, forming a skin outer layer. The method includes hardening the skin inner layer and the skin outer layer.

The present invention relates to a root end assembly (100) for incorporating a plurality of fastening members (74) into the root end of a wind turbine blade shell part during a moulding operation. The root end assembly (100) comprises a mounting plate (70) with a plurality of apertures (72) and a plurality of sheath members (83), each sheath member being disposed in a respective aperture of the plurality of apertures (72). Connection members (78) are received in the sheath members (83), and a plurality of said fastening members (74) are releasably attached to a respective connection member of the plurality of connection members (78) such that the fastening members (74) extend substantially normal to a first surface (77) of the mounting plate (70). The apertures (72) are dimensioned for allowing translational movement of the sheath members (83) in the respective apertures (72).

A method of manufacturing a wind turbine rotor blade part, the method including: providing a placeholder including a core member and a sleeve, wherein the core member defines a longitudinal direction and has a circumferential surface, a front end and a back end, and the sleeve includes a peel ply layer, wherein the sleeve covers the circumferential surface and the back end of the core member and is affixed to the back end of the core member; arranging the placeholder together with reinforcing fibers and a matrix material in a mold; curing of the matrix material, so that the placeholder is embedded in a fiber-reinforced composite material.