Bayerische Motoren Werke Aktiengesellschaft

Florian Rapp

Fabian Rittershofer

Bernd Veihelmann

Maike Dieckmann

Thomas Miadowitz

David Becherer

A method produces a fiber composite preform for a fiber composite component. The fiber composite preform has a plurality of layers of a fiber roving. The method includes: providing a support core for arranging the fiber roving s on a braiding device, the support core having a support core longitudinal axis, producing a first braided fabric layer from fiber rovings on the support core in a first braiding direction parallel to the support core longitudinal axis of the support core by the braiding device, and producing a second braided fabric layer from fiber rovings on the first braided fabric layer by the braiding device. The second braided fabric layer is produced in a second braiding direction parallel to the support core longitudinal axis, the second braiding direction being opposite the first braiding direction.

Method for producing a multilayer fiber composite preform for a fiber composite component

To ensure during the braiding of braiding cores, which have a complex braiding core geometry or vastly different side lengths, that the braiding threads are always correctly following the braiding core contour in terms of storage, at least two braiding rings are provided, which have a constant opening cross-section and are arranged in series directly adjacent to one another. The opening cross-sections delimited by the braiding rings overlap at least partially. The braiding rings are adjustable independently of one another.

Braiding machine

To ensure during the braiding of braiding cores, which have a complex braiding core geometry, for example a rectangular braiding core cross-section or one-sided cross-sectional changes, that the braiding threads are always correctly following the braiding core contour in terms of storage, a braiding ring is provided. The braiding ring is composed of a number of adjustable segments, each of which can be actuated individually and independently of the other segments by an actuator.

A method is provided for producing a fiber preform for a composite fiber component. In the method, at least one first fiber structure is braided in a braiding process over the entire length of the fiber preform to be produced and at least one second fiber structure is wound in a winding process over part of the length of the fiber preform to be produced.

Growing community of inventors

Munich, Germany

Florian Rapp