Here’s how the US Navy solved a real engineering problem with 3D printing

During the Rim of the Pacific (RIMPAC) naval exercises, the Consortium for Advanced Manufacturing Research and Education (CAMRE) and the U.S. Navy demonstrated point-of-need additive manufacturing under mission-critical conditions aboard the USS Somerset. A catastrophic mechanical failure occurred when an essential component within the ship's reverse osmosis desalination pump shattered, threatening fresh water production. Rather than awaiting port-side replacement supply chains, engineers leveraged an onboard hybrid-metal 3D printer to rapidly reverse-engineer and print a functional metallic replacement component at sea. The intervention required managing the thermodynamic and mechanical constraints of at-sea additive manufacturing—including vessel motion dynamics, thermal gradient control, and post-process machining tolerances—to deliver a component capable of withstanding the high hydraulic pressures and corrosive environments inherent to shipboard reverse osmosis systems. This deployment validates the operational maturation of hybrid metal AM for critical fluid power infrastructure and highlights a paradigm shift toward distributed, resilient maritime logistics.