Pratt & Whitney has tested a 3D-printed turbine wheel for its TJ150 turbojet engine, one of its first rotating components made using additive manufacturing.
The TJ150 is a small turbojet engine delivering 150 pounds (68 kilograms) of thrust, used for autonomous systems and weapons.
For the test, Pratt & Whitney, working through its GATORWORKS unit and in partnership with the RTX Technology Research Center, redesigned a TJ150 engine using a method known as “unitization.”
Leveraging additive manufacturing, this technique builds parts layer by layer from digital models, unlike traditional methods that cut components from solid materials.
According to the company, this method allows for greater design flexibility, simplifies the supply chain, and reduces both production time and overall costs.
“Today we’re fielding and flying static engine parts. Rotating engine components, especially for expendable class applications, is the next step,” said Chris Hugill, executive director of Pratt & Whitney GATORWORKS.
“Our testing confirms we’re on track with the engine performing at full operating speeds and temperatures and meeting expected life duration. This technology is transforming how we design, develop and deliver capabilities faster,” added Hugill.
US Advancing in 3D-Printing Components
The US is expanding its use of 3D printing to support field repairs, streamline manufacturing, and test emerging technologies.
Earlier this month, a senior US Army officer suggested deploying 3D printers with frontline units to provide field-ready repair tools when logistical support is unavailable.
In May, the Rock Island Arsenal Joint Manufacturing and Technology Center announced plans to ramp up production of 3D-printed drones for the US Army.
The program aims to test new tech under real-world conditions and collect direct feedback from troops.
Earlier this year, the US military opened a new research facility in Illinois focused on advancing 3D printing for large vehicle components to speed up production and replace critical parts.
