What are prepreg wound tube materials?
Sometimes called “convolute winding”, prepreg material is wrapped onto a mandrel and then cured. Unlike filament winding processes, convolute wound tubes have the metering of the resin content controlled during the prepreg manufacturing process. Furthermore, they can use various fiber architectures such as woven or stitched fabrics to engineer repeatable fiber orientation in the tube. Tubes can be produced with different materials in the ID, core, or OD to enhance specific performance characteristics.
Tube materials are fully cured and ready for fabrication by standard stock removal processes such as turning, milling, drilling, and other specialized processes depending on the part geometry, complexity, and tolerance requirements.
Some tubes are produced to comply with various electrical industry standards.
Tubes are limited to a maximum of 48 inches (1.2 meters) in length. Internal diameters range from 0.093 inches (2.3 mm) to over 48 inches (1.2 meters) on specially built mandrels. The possible ID wall, OD wall, or ID/OD combinations varies by material type.