Attending a couple of 3D printing events directed at the aerospace and defense industries, I heard from Lockheed Martin representatives that had been working with additive manufacturing for some time. And what they were doing with the technology seemed incredible. At the AeroDef conference in Long Beach, for instance, engineer Brian Rosenberger described how the company had 3D printed an enormous titanium piece while researching the construction of F-35 jet parts. The technology it had used to do so was a robotic arm that welds a metallic wire with an electron beam developed by Sciaky, Inc.…
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