B29L2031/001

Composite forming station

A composite forming station for forming a T-profile composite part from a planar laminate. The composite forming station includes in-line rollers arranged along a forming direction, wherein a thickness and/or edge angle each roller is greater than the preceding roller, wherein the rollers gradually splay apart feet sections of the planar laminate to convert the laminate to the T-profile composite part.

MULTI-LANE TOWS FOR USE WITH PLY-BY-PLY FORMING MACHINES

A method includes dispensing a first set of lanes, that each comprise a tow of fiber-reinforced material, at a first angle such that the lanes are placed side-by-side with respect to each other, forming a first layer of a multi-lane tow. The method further includes applying a film directly in contact with multi-lane tow that resists shear forces applied to the multi-lane tow, transporting the multi-lane tow to a mandrel, and compacting the multi-lane tow via a Ply-By-Ply (PBP) machine disposed at the mandrel. The method further comprises removing the film from the multi-lane tow.

Bending method for bending a composite bar
11724437 · 2023-08-15 · ·

A bending method and a bending device, wherein a composite bar comprising a bundle of reinforcing fibres embedded in a polymer matrix is bent at a bending point. To make it bendable, the composite bar is heated locally at the bending point using an ultrasonic device with a sonotrode. After the bending point has been heated, an infeeding movement between the composite bar and the sonotrode is used to deform a region of the composite bar at the bending point to create a deformed portion of which the outer dimensions are different from the outer dimensions of the bar portions of the composite bar adjoining the bending point. The two bar portions are then moved or angled away in relation to one another, and so the composite bar is curved at the bending point. Once the desired bending has been achieved, the composite bar is cured at the bending point.

Method and device for manufacturing a profile member of composite material, the cross-section of which has three branches
11724468 · 2023-08-15 · ·

Method and device for manufacturing a profile member of composite material, the cross-section of which has three branches, including the steps of: —moving together two opposite edges of a panel (2) of sheet material in such a manner that these two opposite edges are juxtapositioned in one juxtapositioning direction; translating a pair of jaws (20) in a direction perpendicular to the juxta-positioning direction in such a manner that the pair of jaws (20) is positioned on either side of the opposite juxtapositioned edges, this translational movement of the pair of jaws (20) being carried out in the direction of a base (25); —simultaneously pressing the sheet material between the two jaws (20), on the one hand, and between the jaws (20) and the base (25), on the other hand; —finishing the profile member of composite material by hardening with a matrix with which the sheet material is impregnated.

Preform, framework part, and method for producing such a preform

Said preform (3) defining two parts (21, 23) and comprising: a first group (C1) of layers of warp yarns, which is external in the first part, a second group (C2) of layers of warp yarns immediately beneath said first group, and a first group (T1) of layers of weft yarns which is external in the first part. Furthermore, the first group of layers of warp yarns is absent in the second part and the first group of layers of weft yarns (19) extends into the second part, the first group of layers of weft yarns being external in the second part. The yarns of the first weft group have a lower yarn count than the yarns of the second weft group; and/or the yarns of the first warp group have a lower yarn count than the yarns of the second warp group.

Device and method for forming a composite laminate for obtaining a z-shaped profile

A device for forming a composite laminate (10) for obtaining a Z-shaped profile (1) including: a grip module (5) comprising two plates (6) configured to enclose and grip between the two plates (6) a first portion of the composite laminate (10) that will form a first flange (3), and a feed module (7) comprising two plates (8) configured to enclose between the two plates (8) a second portion of the composite laminate (10), wherein the feed module (7) is configured to heat the portion of the composite laminate (10) located between its two plates (8) and to be movable with respect to the grip module (5) parallel to the plane of the web (2) of the composite profile (1) once formed to a second position in which the two plates (8) enclose the portion of the composite laminate (10) that will form a second flange (4).

Multi-lane tows for use with ply-by-ply forming machines

A method includes dispensing a first set of lanes, that each comprise a tow of fiber-reinforced material, at a first angle such that the lanes are placed side-by-side with respect to each other, forming a first layer of a multi-lane tow. The method further includes applying a film directly in contact with multi-lane tow that resists shear forces applied to the multi-lane tow, transporting the multi-lane tow to a mandrel, and compacting the multi-lane tow via a Ply-By-Ply (PBP) machine disposed at the mandrel. The method further comprises removing the film from the multi-lane tow.

Systems and methods for incrementally forming a composite part

Systems and methods for incrementally forming a composite part are disclosed herein. The systems include a forming mandrel, which includes a forming surface, and a forming machine. The forming machine includes a forming bladder, a pressure-regulating device, and a positioning device. The forming bladder is configured to be inflated to a forming pressure and to press the ply of composite material against the forming surface. The methods include placing a ply of composite material on a forming surface of a forming mandrel and pressing a forming bladder against the ply of composite material at a selected location to press a selected portion of the ply of composite material against the forming surface and conform the selected portion of the ply of composite material to a surface profile of the forming surface. The methods further include repeating the pressing a plurality of times at a plurality of selected locations.

Hybrid cowl cross bar and method of manufacturing the same
11753081 · 2023-09-12 · ·

The present invention relates to a hybrid cowl cross bar manufactured through an improved method of performing an insert injection molding without applying hydraulic pressure to the inside of a metal pipe during injection molding in order to simplify a manufacturing process of a hybrid cowl cross bar and to secure rigidity of the cowl cross bar. According to an aspect of the present invention, a reinforcing material is inserted into a metal pipe that is a material of a cowl cross bar. The metal pipe may be made of a material such as aluminum, magnesium, or steel, like a conventional cowl cross bar. The reinforcing material may be manufactured by extruding a synthetic resin or a composite material (for example, PP+GF50%). A rib may be formed inside the reinforcing material to increase a capability to resist injection pressure when the metal pipe is insert-injected and to secure rigidity.

FORMING DEVICE AND FORMING METHOD

Provided is a forming device including: a lower die; an upper die for forming a laminated body along the surface shape of the lower die by pressing the laminated body against the lower die; a pushing force generating mechanism that generates pushing force for pressing the upper die against the lower die; and a control unit that controls the pushing force generating mechanism, the upper die has a plurality of forming members aligned in the longitudinal direction, the pushing force generating mechanism has a plurality of pushing force generating units connected to the plurality of forming members and configured to generate pushing force for pressing the forming members against the lower die, and the control unit controls the plurality of pushing force generating units so as to press a pair of forming members arranged adjacent in the longitudinal direction toward the lower die at different timings from each other.