The Defense Advanced Research Projects Agency, or DARPA, has been a vital part of the United States Department of Defense for more than 60 years. It was launched at the same time as Sputnik in 1957, and is dedicated to the use of breakthrough technology for national security purposes. DARPA works with innovators both inside and outside of the government, and has been responsible for the development of military capabilities such as precision weapons and stealth technology as well as things like the Internet, automated voice recognition, and GPS.
DARPA has been pursuing the development of additive manufacturing since its early days of existence. After the Cold War, in the 1990s, there was an urgent need to make defense modernization more affordable. DARPA was asked to lead a DOD-wide initiative in dual-use technologies. One thread of the initiative included the solid free-form fabrication program, which expanded into what is now called 3D printing.
“There were a few capabilities out there including stereolithography, that 3D Systems had developed, that were very synergistic at the time, to move from concept models and tooling to making parts with form, fit and function,” says former DARPA Program Manager Bill Coblenz. “Overall, what we wanted to do in these programs was create a digital thread that connected design right through to manufacturing, to speed up and reduce the cost of producing defense systems. I think we’re well on the way to doing that.”
Manufacturing was re-emphasized by DARPA in 2010 with programs such as Open Manufacturing, Materials Development for Platforms, or MDP, and Transformative Design. The Open Manufacturing Program was developed to build confidence in new technology like 3D printing so that adopting it would not be considered a risk. MDP linked the tools being used by material developers with those being used by the design community and manufacturing community.
“If you look at where these innovations are used, you will find that it still takes a very long time for these new materials and manufacturing processes to impact how we actually design and build things, especially when people’s lives depend on it, “says Jan Vandenbrande, DARPA Program Manager. “To make things more complicated, additive manufacturing techniques can create materials on the go whose properties are different from the ones we have studied over thousands of years. So how would you compensate for this? Or better yet, take advantage of it? We could open up entirely new operational envelopes, while also integrating additional functionality. To accomplish this vision, DARPA is working on several programs.”
DARPA is working on changing the relationship between humans and computers, to make computers true partners in design, Vandebrande continues.
DARPA’s work with additive manufacturing has included such innovations as 3D printed rocket engines, bioengineered construction materials, virtual reality developments and much more. Advanced manufacturing is critical to national security, the agency emphasizes, and it will continue to develop 3D printing and other advanced technologies for both military and civilian purposes.
You can learn more about DARPA’s work with advanced manufacturing technologies below:
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