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.
On Memorial Day, Americans remember the sacrifices the US armed forces have made, and continue to make, in service to the country. All of us should also consider the developments in technological capabilities and equipment over the years that contribute to the success of our military operations.
Advanced visualization can depict an entire plant in motion, while also detailing an individual workstation. Individual products can be rendered different for each discipline involved — marketing, engineering, or suppliers.
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.