Filament winding involves wrapping carbon fiber prepreg onto a mandrel following specific patterns, followed by curing and demolding to produce the final part. This technique encompasses three methods: dry winding, wet winding, and semi-dry winding.
Dry Winding
Dry winding uses pre-impregnated carbon fiber tape heated to a viscous state on the winding machine before application. While it ensures precise quality control and high production efficiency, the process incurs higher costs and yields products with lower interlayer strength.
Semi-Dry Winding
In semi-dry winding, fibers are resin-impregnated and passed through a drying unit during winding to remove solvents from the prepreg.
Wet Winding
Wet winding applies resin-coated fibers directly onto the mandrel under controlled tension. This method reduces costs by 40% compared to dry winding and produces parts with superior airtightness, as tension expels excess air bubbles. The resin coating also minimizes fiber abrasion. However, it may lead to resin waste and offers limited resin compatibility.
Wet winding remains the most widely adopted method. Filament winding allows load-specific fiber path design to maximize material strength, supports mechanized/automated production, and delivers dimensionally stable, precise, and cost-effective products once process parameters are optimized.
High Gain Industrial Co., Ltd. masters vacuum autoclave curing, filament winding, and high-temperature compression molding. Using premium raw materials from leading Japanese and Taiwanese suppliers, the company manufactures high-performance carbon fiber components tailored to client specifications, with products consistently exported to Europe and America.
