B29C70/548

AIRCRAFT CONTROL SURFACE
20250136293 · 2025-05-01 · ·

A monolithic control surface includes an upper shell portion, a lower shell portion, a stringer connected to the upper shell portion and the lower shell portion, a trailing edge end, and a solid trailing edge region connected to the upper shell portion, the lower shell portion and the stringer.

Construction of tubular assemblies

A method and apparatus for constructing a tubular assembly (24) comprising an inner portion (21) and a further portion (22) surrounding the inner portion, the further portion being formed from a strip (50) of material comprising two opposed longitudinal marginal side portions (53). The apparatus (100) comprises an assembly station (106) having a wall (122). The apparatus (100) comprises means for advancing the inner portion (21) along a first path (111) extending past the wall, and means for advancing the strip (50) along a second path (112) and causing the strip to encircle the wall and thereby wrap about and surround the inner portion (21). The two marginal side portions (53) are disposed in overlapping relation on the side of the wall opposed to the first path (111). The apparatus (100) further comprises a system (131) for affixing the two longitudinal marginal side portions (53) together in overlapping relation to assemble the strip (50) into a tubular configuration about the inner portion (21), whereby the strip in the tubular configuration provides the further portion (22).

Fiber-reinforced composite material molding apparatus and fiber-reinforced composite material molding method

A fiber-reinforced composite material molding apparatus includes a molding die, a bagging film that seals a fiber base material in the molding die to form a hermetically sealed space, an intake line that depressurizes the hermetically sealed space, and a resin injection line that injects a resin material into the fiber base material. The molding die includes a main body portion including a main groove that extends along a longitudinal direction and is connected to the resin injection line, lateral grooves that are formed at a plurality of positions in the longitudinal direction and extend along a width direction, and a step portion that extends along the longitudinal direction and is disposed between the main groove and the lateral grooves, and a lid portion that extends along the longitudinal direction, is disposed being in contact with the step portion to cover the main groove, and forms a part of a molding surface. The main body portion includes a communication groove through which the main groove is communicated with the lateral grooves.

Method of manufacturing a wind turbine blade
12350893 · 2025-07-08 · ·

Method for manufacturing a wind turbine blade comprising an aerodynamic shell forming an outer surface of the blade and at least one main laminate, the method comprising; providing a mould 13, forming a main laminate 18 in the mould by providing a fibre lay-up comprising a plurality of fibre plies placed on top of each other in the mould 13, dividing the fibre lay-up into at least two segments as seen in the longitudinal direction of the mould by at least one transverse flow barrier 54,55 in the lay-up preventing longitudinal resin flow through the fibre lay-up past the flow barrier 54,55.

Pore placement determinations using anchor points

According to examples, a processor may place anchor points at determined locations of a digital model of an item to be fabricated by a three-dimensional (3D) fabrication system. The anchor points may include points that remain in place during a placement determination of pores on the digital model and may correspond to locations at which pores are or are not to be formed in the digital model. The processor may determine places at which the pores are to be set in the digital model of the item, in which the pores are to be placed to comply with a predefined constraint with respect to each other and the anchor points and may modify the digital model to place the pores at the determined places in the digital model and to add pores at anchor points that correspond to pores in the digital model.

Curing mold for manufacturing a turbomachine component made of composite material from a preform and method for producing a component by means of such a mold

The invention relates to a curing mold (10) for manufacturing a turbomachine component made of composite material from a preform (200), comprising: a first and a second body (11, 12) defining an air gap receiving the preform; at least one primary channel (21) arranged in the first and/or the second body; an injection member (22) of a pressurized fluid in the primary channels; at least one secondary channel (23), in which a piston (24) slides, which delimits, on the one hand, a first chamber (26) in communication with the or a primary channel and, on the other hand, a second chamber (27) in communication with the air gap, and which is designed to compress thermosetting resin which has entered the second chamber from the preform in the air gap, so as to put the preform under hydrostatic pressure.

METHOD AND SYSTEM FOR RESIN TRANSFER MOLDING COMPOSITE PARTS
20250375943 · 2025-12-11 ·

In a method for resin transfer molding (RTM) a composite part, a fiber preform is formed on a transfer plate while the transfer plate is supported on a preforming base outside an RTM mold. The RTM mold can be closed for molding another composite part during forming. The transfer plate and the fiber preform are transferred together from the preforming base to an RTM base of the RTM mold. The RTM mold is closed to enclose the fiber preform in the RTM mold. While the RTM mold is closed, the composite part is formed on the transfer plate in the RTM mold by infusing the fiber preform with resin and curing the infused resin to form the composite part. The RTM mold is then opened, and the transfer plate and composite part are removed together from the mold. The RTM molding process can be isothermal.