Next, let’s explore the key components of the 3D-printed rocket and the manufacturing process for them.
Key Components and Manufacturing Process
3D printing enables the creation of complex rocket parts that were previously impossible or costly to produce with traditional methods. Critical components such as engine nozzles, fuel injectors, and combustion chambers can be printed as single pieces, eliminating the need for assembly and reducing the risk of failure. Metal alloys like titanium and nickel-based superalloys are commonly used, offering high strength and heat resistance essential for space travel.
The process begins with a digital 3D model, which is sliced into thin layers. A 3D printer then deposits material layer by layer, fusing each layer to build the final part. This additive approach minimizes material waste and allows for rapid prototyping and iteration.
Enterprise Case
German Aerospace Center 3D prints rocket fuel injectors
The German Aerospace Center (DLR) collaborated with the Customer Innovation Center (CIC) of 3D Systems and achieved a breakthrough in the innovation of rocket engine fuel injectors through metal 3D printing technology in 2018.
The rocket project of the American company Relativity Space: Terran 1 & Terran R
Terran 1 conducted the world’s first fully 3D-printed rocket launch in March 2023 (with 95% of the components being printed), although it did not reach orbit, it verified the reliability of the 3D-printed structure.
The Terran R project is scheduled to make its maiden flight in 2026, with a focus on reusable technology (capable of transporting 20 tons in Low Earth Orbit).
3D printing is accelerating the advancement of space exploration at an unprecedented pace. Its application in rocket manufacturing not only enhances reliability but also greatly expands design possibilities, ushering in a new chapter for humanity’s journey into deeper space.
