When I think of pultrusion, I think of a continuous process to produce lineal shapes, such as I-beams or legs for ladders. I think of it as a reverse extrusion process because reinforced fibers are pulled through a resin and into a heated die, where the resin is polymerized. An interesting new German technology called Radius Pultrusion allows the continuous production of curved reinforced profiles from endless fibers and webbing. It was just announced that the process, developed by the Thomas Group of Bremervörde, Germany, has been nominated for the prestigious Hermes technology Award, which will be given at the Hannover Messe, which will be held later this month in Germany.The innovation enables production of endless circles and arches of any radius, for example springs. When using bidirectional reinforcement, the strict orientation of the fibers can only be provided on the level that is vertical to the deflection level. For all other areas, formable webbings, or nettings are required. Thomas says it can be used for structural components of cars, trains or aircraft. Thread rods and nuts are another possibility.
University of Southampton researchers have come up with a way to 3D print transparent optical fibers like those used in fiber-optic telecommunications cables, potentially boosting frequency and reducing loss.
The first ASME Additive Manufacturing + 3D Printing Conference (AM3D) will be co-located with the organization's International Design and Engineering Technical Conferences (IDETC) and Computers & Information in Engineering Conference (CIE), Aug 2-5 in Boston.
Focus on Fundamentals consists of 45-minute on-line classes that cover a host of technologies. You learn without leaving the comfort of your desk. All classes are taught by subject-matter experts and all are archived. So if you can't attend live, attend at your convenience.