Manufacturing of Fiber Reinforced Composite Helical Springs

This paper describes the manufacturing of fiber reinforced composite coil springs using conventional machine tools and accessories. The method can be used for mass production. Three different types of springs were manufactured using glass fibers, carbon fibers and glass/carbon fibers. The mechanical properties of the springs were tested. The spring constant of carbon fiber springs are 25% more than glass fiber springs and 7% more than glass/carbon fiber springs. Spring constants of composite springs are 40% less than the steel springs and the weight of the composite springs are 70% less than the steel springs. The manufactured springs can be used for the suspension of the light vehicles.