3D Printing: A Challenge to Nuclear Export Controls

This paper examines the possibility of manufacturing critical nuclear-fuel cycle technology using 3D printers in order to circumvent export controls. In particular, it examines the possibility that it may soon be possible to 3D-print maraging steel for use in a centrifuge to enrich uranium. The paper finds that while significant technological challenges remain, an expert with access to an off-the-shelf 3D printer, advanced quality control technology and knowledge of centrifuges should be able to achieve this. Using these results the paper discusses the need for export controls of 3D printing technology and provides export control recommendations for printers on the basis of their specifications.