3D Printed Metal Parts (IMAGE) U.S. Army Research Laboratory Caption Army researchers study the performance of 3-D-printed metal parts and how they degrade as part of ongoing research in vehicle technology. The CCDC Army Research Laboratory at Aberdeen Proving Ground, Maryland, prints metal parts from powder. Credit Dave McNally Usage Restrictions None License Licensed content Disclaimer: AAAS and EurekAlert! are not responsible for the accuracy of news releases posted to EurekAlert! by contributing institutions or for the use of any information through the EurekAlert system.