Method for producing fiber preforms for a fiber composite component with locally adapted mechanical properties

Combining braiding and winding processes in fiber preform production allows for locally adjustable mechanical properties, enhancing both longitudinal and transverse strengths while optimizing material efficiency and reducing costs.

DE102013218006B4Active Publication Date: 2026-06-11BAYERISCHE MOTOREN WERKE AG
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Patent Information

Authority / Receiving Office
DE · DE
Patent Type
Patents
Current Assignee / Owner
BAYERISCHE MOTOREN WERKE AG
Filing Date
2013-09-09
Publication Date
2026-06-11

AI Technical Summary

Technical Problem

Existing methods for producing fiber preforms face limitations in achieving local mechanical property adjustments, particularly in complex geometries, with braiding processes being limited by fiber orientation variability and material efficiency, and winding processes being inefficient for large angles and increased costs.

Method used

A method combining braiding and winding processes to create fiber preforms with locally adjustable mechanical properties, where braiding provides 0° orientation and winding adds transverse strength, with the winding process starting after a predetermined length to optimize material use and cost.

Benefits of technology

The method enables fiber preforms with enhanced longitudinal and transverse mechanical properties, reducing material costs and weight while allowing complex geometries and efficient use of fiber materials.

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Abstract

Method for producing a fiber preform (1) for a fiber composite component, wherein at least one first fiber structure (10) is braided over the entire length of the fiber preform (1) to be produced in a braiding process and at least one second fiber structure (11) is wound over part of the length of the fiber preform (1) to be produced in a winding process, wherein fibers (4, 5) of the first fiber structure (10) are pre-impregnated or bonded and the second, wound fiber structure (11) is pressed at least temporarily against the fiber preform (1) via pressure rollers (40).
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