Study of Key Weaving Parameters of 3D Woven Carbon Fiber Composite Preforms Affecting Their Weaving Stability
2025年9月26日
Abstract: This article investigates the effects of beating methods, traction amount, yarn twisting, and yarn reduction techniques on the weaving feasibility, dimensional stability, and both micro- and macro-level quality of 3D woven carbon fiber preforms. The study reveals that the best beating method for carbon fiber preforms is inserting a weft layer and then beating once to optimize dimensional stability; the traction level should be adjusted based on thickness and weft density; the thickness of the preform relates to yarn twisting conditions, with weft yarn twisting significantly influencing thickness; the weaving feasibility of yarnreduced preforms is largely unaffected by the direction or density of yarn reduction, but when reduction density exceeds a certain threshold (<20 mm), it can influence the stability of local density. These findings provide guidance for the design, preparation, and forming of carbon fiber preforms in future research.
Key words: carbon fiber; 3D weaving; beating method; traction amount; yarn condition; yarn reduction method
