TEXTILE PERFORMING FOR COMPLEX SHAPE STRUCTURAL COMPOSITES

摘要

With textile technologies net or near net shape preforms of complex shape parts can he manufactured with continuous fiber reinforcement, control over fiber orientations and a high productivity. The use of textile preforms in large scale composite product manufacturing is illustrated through the Sunrise all composite Electric Vehicle program. Both 2D braiding-over-core and net-shape knitting are described as potentially cost effective methods of composite preforming, due to the integration of various features: ability for complex, net-shape preforming, integrating many conventional plies; automation of processes to guarantee quality and reproducibility; and high productivity. Knitted preforms provide for additional features like high conformability and good resin permeability.