A free guide to welding stainless steels has been put out by the Lincoln Electric Company (www.lincoln-electric.com). Aptly titled Stainless Steels—How to Weld Them—Where to Use Them, the guide discusses the weldability of various stainless steels and offers advice on how to pair each type of stainless steel with the appropriate filler metals. It also includes information on arc welding processes, weld preparation, and operator techniques.
Altair has released an update of its HyperWorks computer-aided engineering simulation suite that includes new features focusing on four key areas of product design: performance optimization, lightweight design, lead-time reduction, and new technologies.
At IMTS last week, Stratasys introduced two new multi-materials PolyJet 3D printers, plus a new UV-resistant material for its FDM production 3D printers. They can be used in making jigs and fixtures, as well as prototypes and small runs of production parts.
In a line of ultra-futuristic projects, DARPA is developing a brain microchip that will help heal the bodies and minds of soldiers. A final product is far off, but preliminary chips are already being tested.
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