Royal Navy Deploys On-Site 3D Printing for Submarine Readiness

The UK's Submarine Delivery Group (SDG), part of the Defence Nuclear Enterprise, has transitioned additive manufacturing from an experimental tool to a critical frontline maintenance capability. Mobile 3D printing workshops have been established at HM Naval Base Clyde, supported by a dedicated team focused on mitigating supply chain delays that keep submarines out of active service for extended periods.

The SDG Additive Manufacturing team, formed in February 2024, collaborates with QinetiQ and in-service teams to develop manufacturing solutions for components that are either unavailable or have excessively long lead times. A Market Access Cell manages requests from ship's staff and planning teams, prioritizing and expediting the production of replacement parts.

Shipping containers outfitted with metal printing equipment, scanning technology, and engineering workspaces are now operational at HMNB Clyde. Two of these units were custom-designed by QinetiQ to meet specific needs. For the initial twelve months, QinetiQ personnel will operate these facilities alongside naval staff, who will also receive direct training on the equipment.

For legacy or unique components lacking existing digital designs, QinetiQ engineers utilize handheld scanners to capture precise measurements from parts on board. These scans are converted into digital files suitable for 3D printing, proving invaluable for obsolete parts that can no longer be sourced commercially within operational timeframes. This capability directly supports the Submarine Maintenance Recovery Plan, aiming to enhance the underwater fleet's availability and reduce time spent in port.