General Atomics Aeronautical Systems takes the $5.5M GOTHAAM award to develop 3D printable high-strength aluminum for defense and commercial aircraft.
The U.S. defense manufacturing pipeline just got a significant push toward scalable metal 3D printing. America Makes, the National Additive Manufacturing Innovation Institute, announced that General Atomics Aeronautical Systems (GA-ASI) won its $5.5 million GOTHAAM Project Call. The award funds development of material allowables for a high-strength aluminum alloy equivalent to 7075-T73 across three classes of laser powder bed fusion systems.
What GOTHAAM Actually Means
GOTHAAM stands for Generation Of Technical-data for High-strength Aluminum Alloy Material. The project is funded by the Office of the Under Secretary of War, Manufacturing Technology Office, and managed through the National Center for Defense Manufacturing and Machining. The goal is practical: give defense and aerospace engineers the certified data they need to specify 3D printed aluminum parts without running a full qualification program for every geometry.
Right now, the gap between prototype and production metal AM is largely a paperwork problem. A printer can produce a complex aluminum bracket. Getting that part onto a fighter or a satellite requires reams of material property data, and that data must cover small, medium, and large-format LPBF systems. GOTHAAM aims to close that gap for one specific alloy class.
Why 7075-T73 Matters
7075 aluminum is the industry workhorse for high-stress aerospace structures. It machines well, welds with care, and handles fatigue better than most aluminum alloys. The T73 temper gives it stress corrosion resistance, which matters when a part lives in a salty, humid environment or sees repeated thermal cycles. If GOTHAAM delivers allowables that let engineers specify 3D printed 7075-T73 with confidence, the implications for part consolidation and supply chain resilience are substantial.
The Team Behind the Award
GA-ASI is not working alone. The GOTHAAM team includes Lockheed Martin, Northrop Grumman, Airbus Space and Defense, Nikon AM, EOS America, and roughly a dozen other organizations with direct experience qualifying metal AM for flight hardware. That breadth is intentional. The project needs input from material producers, machine makers, and end users to produce data that actually gets used.
What This Changes for Defense Manufacturing
Defense acquisition has historically moved slowly on additive manufacturing. Prototypes appear in R&D labs, but production qualification drags on for years. Projects like GOTHAAM compress that timeline by front-loading the data generation and distributing it across an industry consortium. If successful, the output becomes a reference document that primes the pump for broader adoption of laser powder bed fusion for structural aluminum parts.
GA-ASI brings credibility to the project. The company has a long track record of certifying complex unmanned systems for operational use. Their involvement signals that the data GOTHAAM produces will be tested against real operational requirements, not just laboratory benchmarks.
The Bigger Picture
America Makes has been funding AM infrastructure projects for years. GOTHAAM is one of the more targeted awards in its portfolio. Rather than building a new machine or opening a new facility, it focuses on the unglamorous but essential work of material qualification. That is exactly the kind of project that moves additive manufacturing from specialist workshops into mainstream production. When the data is ready, it should make it easier for primes and subcontractors to quote aluminum AM parts with known performance characteristics, reducing risk across the entire supply chain.
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