Airbus, aerostructure manufacturer Aerosud, and the South African Council for Scientific and Industrial Research, are partnering to develop the biggest, fastest 3D printer possible for making titanium aircraft and satellite components. Shown here, the Airbus A380 demonstrator aircraft arrives at the 2012 Farnborough International Airport. (Source: Airbus)
Ann, this is interesting news. One question I would have is on the strength of the materials. In general, machined materials are stronger than injection molded materials. Of course, if the strength is enough for the purpose, then that is enough. Then the speed of manufactur is all important.
Lou, the strength of the PM/sintered titanium powder metal parts produced by Dynamet has received approval from Boeing for use in structural aircraft parts, after a few years of testing. That news is pretty amazing on its own. The fact that Airbus has signed on to the Aeroswift aircraft structures project to help test selective laser-sintered titanium parts is another vote of confidence. It will be interesting to see what happens during that test phase.
@naperlou: Selective laser sintering typically doesn't yield a fully-dense part, so the mechanical properties would be significantly inferior to those of a forging. On the other hand, it has been shown that selective laser sintering followed by hot isostatic pressing can give mechanical properties equivalent to conventionally-processed titanium.
It seems like a good move for South Africa to go from an exporter of raw materials to a manufacturer of high-tech components. Other developing countries could benefit from this example.
Chuck, I looked all over for build volume and printer size with no luck. The only clue is that it's designed to build components of large aircraft structures. I'm guessing several feet per side of build volume. Very large 3D printers exist in architectural apps for use with sand and soil and their build volumes can be 2m x 2m x 5m up to 6m x 6m x 2m, and even larger in the works.
Ann - thanks for offering the large size baths that are still being developed. I had no idea that 3D makers were developing apparatus that large. 6 meters square-? That's enormous. That's about 50 feet across diagonal; large enough to make a wingspan frame. Wow.
Jim, the architectural apps are for buildings. If you google "3D printed buildings" you'll find several different versions. Unless you want to make airplanes out of sand and cement, there's no relationship in products. But figuring out to make larger build volumes is, to some extent, a generic 3D printing problem, which is why I mentioned the larger build volumes of the architectural apps.
To give engineers a better idea of the range of resins and polymers available as alternatives to other materials, this Technology Roundup presents several articles on engineering plastics that can do the job.
The first photos made with a 3D-printed telescope are here and they're not as fuzzy as you might expect. A team from the University of Sheffield beat NASA to the goal. The photos of the Moon were made with a reflecting telescope that cost the research team £100 to make (about $161 US).
A tiny humanoid robot has safely piloted a small plane all the way from cold start to takeoff, landing and coming to a full stop on the plane's designated runway. Yes, it happened in a pilot training simulation -- but the research team isn't far away from doing it in the real world.
Some in the US have welcomed 3D printing for boosting local economies and bringing some offshored manufacturing back onshore. Meanwhile, China is wielding its power of numbers, and its very different relationships between government, education, and industry, to kickstart a homegrown industry.
You can find out practically everything you need to know about engineering plastics as alternatives to other materials at the 2014 IAPD Plastics Expo. Admission is free for engineers, designers, specifiers, and OEMs, as well as students and faculty.
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