From Experimental Builds to Flight‑Ready Metal Additive Manufacturing
Metal additive manufacturing is the use of 3D printing processes to build complex metal components layer by layer, allowing engineers to reduce material waste, consolidate assemblies, and optimize performance while aiming to meet the strict certification, repeatability, and safety requirements of aerospace flight hardware. This shift from experimental prototypes to reliable, certified production is now taking shape across the sector. Aerospace 3D printing is no longer limited to brackets and non‑critical fixtures; it is being pushed into high‑criticality structural parts and demanding turbine environments. That change is driven by focused partnerships between machine suppliers, materials specialists, and original equipment manufacturers that are qualifying end‑to‑end processes rather than isolated parts. Together they are proving that titanium AM parts, multi‑material structures, and advanced superalloys can follow defined production qualification pathways and satisfy the documentation and traceability demanded for flight.
Airbus and Norsk Titanium: Qualifying RPD for Critical Titanium Structures
Norsk Titanium’s Rapid Plasma Deposition process is at the center of one of the clearest moves toward production‑qualified titanium AM parts. The company’s directed energy deposition technology melts titanium wire with a plasma arc in an argon atmosphere, producing near‑net‑shape components that need limited machining. According to Norsk Titanium, this approach can improve the buy‑to‑fly ratio by 50–75% compared with conventional metal manufacturing while maintaining forged‑like material properties. Airbus is now working with Norsk Titanium to industrialize and qualify RPD for high‑criticality structural titanium components after certifying a 3D‑printed Lower Frame Fitting that has entered series production and flown on the A350. The partners are qualifying titanium wire feedstock, validating the industrial process, and aligning standards with aerospace requirements, indicating that metal additive manufacturing is being woven into formal airworthiness frameworks rather than treated as a one‑off innovation.
Multi‑Material Wire Arc AM: Expanding the Design Space in One Build
While titanium AM parts move toward routine use, other projects are testing how far the design space can stretch with metal additive manufacturing. DEEP Manufacturing and Fortius Metals are combining synchronized multi‑robot wire arc additive manufacturing with advanced alloy wire to build a multi‑material metal cylinder in a single, continuous process. The goal is to show that complex combinations of alloys can still meet production‑grade precision, repeatability, and process control. The work begins with test coupons and a smaller cylinder before the main build, reflecting a staged production qualification mindset. DEEP Manufacturing’s new large‑format WAAM facility is intended to bring this kind of capability closer to customers that need large, high‑integrity structures. By merging simulation, toolpath design, and tailored feedstock wires with a scalable platform, the project hints at future aerospace 3D printing applications where different materials are placed exactly where needed inside a single component.
Velo3D and Aurelia: Systematic Paths to Qualified Turbine Components
In propulsion and energy systems, Velo3D and Aurelia Technologies are demonstrating how original equipment manufacturers structure production qualification for demanding parts. Their partnership focuses on turbine components printed on Velo3D’s Sapphire XC platform, with a phased program that runs from feasibility studies through material and process development to low‑rate initial production. Aurelia is using metal additive manufacturing to consolidate multi‑piece turbine assemblies into fewer, integrated parts that can withstand high temperature and stress while cutting part counts, fasteners, and tolerance stack‑ups. This strategy is as much about supply chain resilience as performance. By replacing long‑lead forgings and tooling‑heavy routes, Aurelia aims for shorter lead times and faster design iterations, with geometry updates produced in weeks instead of months. The collaboration shows how disciplined parameter development, material behavior understanding, and repeatable workflows are treated as prerequisite steps before any additive component is cleared for critical service.
Toward Certified Production Ecosystems for Metal AM in Aerospace
Across these efforts, a common pattern is emerging: the aerospace industry is building full ecosystems around metal additive manufacturing rather than isolated demonstration parts. Airbus and Norsk Titanium are qualifying an end‑to‑end RPD route for high‑criticality titanium structures, including feedstock control and industrial standards. DEEP Manufacturing and Fortius Metals are testing whether multi‑material wire arc AM can maintain the consistency needed for future large, structural aerospace 3D printing applications. Velo3D and Aurelia are treating turbines as a proving ground for phased validation and low‑rate production using established material and process development steps. Together, these programs show that production qualification is now the main focus. Metal additive manufacturing is being engineered into certified, auditable processes designed to satisfy safety authorities, reduce waste and lead time, and support the next generation of structural and propulsion components in flight.
