Maro Publications

Filament Winding


from 4/15/2013

Maro Encyclopedia


Patent Abstracts

Patent Titles

Composite Fabrication



“Filament winding is a fabrication technique for manufacturing composite material, usually in the form of cylindrical structures. The process involves winding filaments under varying amounts of tension over a male mould or mandrel. The mandrel rotates while a carriage moves horizontally, laying down fibers in the desired pattern. The most common filaments are carbon or glass fiber and are coated with synthetic resin as they are wound. Once the mandrel is completely covered to the desired thickness, the mandrel is placed in an oven to solidify (set) the resin. Once the resin has cured, the mandrel is removed, leaving the hollow final product.

Filament winding is well suited to automation, where the tension on the filaments can be carefully controlled. Filaments that are applied with high tension results in a final product with higher rigidity and strength; lower tension results in more flexibility. The orientation of the filaments can also be carefully controlled so that successive layers are plied or oriented differently from the previous layer. The angle at which the fiber is laid down will determine the properties of the final product. A high angle "hoop" will provide crush strength, while a lower angle pattern (known as a closed or helical) will provide greater tensile strength.

Products currently being produced using this technique range from golf clubs, pipes, oars, bicycle forks, power and transmission poles, pressure vessels to missile casings, aircraft fuselages and lamp posts and yacht masts.”

(Filament Winding, Wikipedia, 4/15/2013)


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(RDC 6/5/2012)


Roger D. Corneliussen

Maro Polymer Links
Tel: 610 363 9920
Fax: 610 363 9921


Copyright 2013 by Roger D. Corneliussen.
No part of this transmission is to be duplicated in any manner or forwarded by electronic mail without the express written permission of Roger D. Corneliussen

* Date of latest addition; date of first entry is 4/15/2013.