A single automaker will spend as much as $2 billion each year perfecting dies to press sheet steel into body parts for new car models. Sometimes manufacturers must redesign a die as many as 10 times before discovering the mold that forms the proper shape. A new technique, however, promises to assure that the die of the future needs to be cast but once. The technique was described at the American Crystallographic Association meeting in Arlington, VA. Scientists at the National Institute of Standards and Technology (NIST) used an advanced measurement technique, known as in-situ ultrasmall-angle X-ray scattering, to study the evolution of complex defect structures in deformed metals. They designed a special sample holder called a tensile stage for deforming samples in the x-ray beam. Thus engineers can study minute details about the formation of defects while the metal is being stretched and probed by the x-rays. NIST is devising a theoretical model connecting the observed defect structures with the mechanical properties of various materials. It's the first step toward developing new computer models that could help manufacturers slice die costs. Phone NIST's Gabrielle Long at (301) 975-5975 or Lyle Levine at (301) 975-6032.
By experimenting with the photovoltaic reaction in solar cells, researchers at MIT have made a breakthrough in energy efficiency that significantly pushes the boundaries of current commercial cells on the market.
We looked at a number of sources to determine this year's greenest cars, from KBB to automotive trade magazines to environmental organizations. These 14 cars emerged as being great at either stretching fuel or reducing carbon footprint.
A quick look into the merger of two powerhouse 3D printing OEMs and the new leader in rapid prototyping solutions, Stratasys. The industrial revolution is now led by 3D printing and engineers are given the opportunity to fully maximize their design capabilities, reduce their time-to-market and functionally test prototypes cheaper, faster and easier. Bruce Bradshaw, Director of Marketing in North America, will explore the large product offering and variety of materials that will help CAD designers articulate their product design with actual, physical prototypes. This broadcast will dive deep into technical information including application specific stories from real world customers and their experiences with 3D printing. 3D Printing is