Materials Spotlighted at Design & Manufacturing Show
Engineering Materials 8/29/2013 3 comments The choices of metals, plastics, coatings, and adhesives has never been broader, and new ones are becoming available at a rapid rate. Some of this variety is reflected at the upcoming Design and Manufacturing Midwest Show.
3D Printing With Iron & Tungsten
Engineering Materials 8/26/2013 7 comments The range of metals that can be 3D printed is increasing. ExOne has added iron infiltrated with bronze, and bonded tungsten, to the range of metal and ceramic powders that can be used with its multi-material M-Flex machines.
Video: Inside the World's Largest Wind Tunnel
Electronic News & Comment 8/23/2013 29 comments When NASA Ames runs its massive wind tunnels, the surrounding area knows it. Local aircraft are warned of potential updrafts. Electric utilities brace for sudden power draws. And nearby residents are said to hear its 300-knot airflows from miles away.
Slideshow: Robots Get More Thin-Skinned
Engineering Materials 8/22/2013 23 comments Robots may be getting more sensitive, due to a breakthrough by engineers at the University of California, Berkeley. An electronic skin made of a sensor network mounted on a substrate of flexible plastic reacts to touch by lighting up.
DuPont Pushes for a 50%-Plus Renewable Plastics Line
Engineering Materials 8/9/2013 13 comments DuPont says its performance plastics line will contain more than half renewable materials within 15 years, and that all of its medium- to long-term research in engineering plastic feedstocks is based on the need to move to non-food based sources.
MIT 3D Prints Tough, Bone-Like Composite
Engineering Materials 8/8/2013 6 comments A team at MIT has 3D-printed bone-like composite materials on the Objet Connex500 multi-material printer. One was more than 20 times as tough as its constituent materials alone.
How to Make Intelligent Carbon-Fiber Composites
Engineering Materials 8/7/2013 6 comments German researchers have demonstrated the ability to embed RFID tags with ultra-thin antennas inside carbon-fiber-reinforced composite components such as aircraft wings. The technique is also being investigated for composite structural health monitoring.
Producing high-quality end-production metal parts with additive manufacturing for applications like aerospace and medical requires very tightly controlled processes and materials. New standards and guidelines for machines and processes, materials, and printed parts are underway from bodies such as ASTM International.
Engineers at the University of San Diegoís Jacobs School of Engineering have designed biobatteries on commercial tattoo paper, with an anode and cathode screen-printed on and modified to harvest energy from lactate in a personís sweat.
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