CFRP Leaf Springs for Railcars
No, this is not a concept vehicle. Rather, it is the efWING railcar truck with a leaf spring arrangement engineered with a carbon fiber reinforced plastic that was developed by Toho Tenax (tohotenax.com), part of the Teijin Group’s carbon fiber and composites business, for Kawasaki Heavy Industries, which makes railcars. Ordinarily, railcar trucks use steel side frames and independent coil springs. In the efWING approach, there is a weight reduction of approximately 1,980 lb. per railcar, which results in fuel efficiency for and reduced emissions from the locomotive. While Kawasaki has been using this leaf spring for a few years, the two companies are now working toward developing a totally integrated system—from the carbon fiber yarn all the way to the finished leaf springs—so that they will be able to mass-produce the components.
A look at the 7 Series Carbon Core.
Have economies of scale come to the production of automotive parts with carbon fiber materials?
On Easter morning in Moab, Utah, when the population of that exceedingly-hard-to-get-to town in one of the most beautiful settings on Earth has more than doubled, some people won’t be hunting for Easter eggs, but will be trying to get a good look at one of the vehicles six that Jeep has prepared for real-life, fast-feedback from the assembled at the annual Easter Jeep Safari.