For the first time in history, 3D printing of metals will be launched in space
The first metal 3D printer to be used in space is headed to the International Space Station. The Cygnus NG-20 delivery mission, which carries a printer weighing 180 kg, started on Tuesday.
Astronaut Andreas Mogensen will install a printer developed by Airbus for the European Space Agency. After that, the spacecraft will be controlled and tracked from the Earth.
Polymer-based 3D printers have been used on the ISS in the past, but 3D printing metals in orbit is a more difficult task. The machine will use a type of stainless steel often used for water purification and medical implants because it resists corrosion well.
The melting point of the metal is about 1400 °C, and the printer will operate in a fully sealed box. Before it starts working, the printer releases oxygen into space and replaces the atmosphere with nitrogen. Otherwise, the molten metal will oxidize under the influence of oxygen.
Given the higher temperatures than a plastic 3D printer (which heats up to 200°C), “the safety of the crew and the station itself must be ensured, while maintenance capabilities are also very limited,” said ESA technical officer Rob Postema. “If successful, the strength, conductivity, and stiffness of the metal will take the potential of space 3D printing to new heights.”
In December, ISS astronauts found a tomato that was grown here eight months ago as part of an experiment and later lost. Frank Rubio lost a tomato. By the way, the astronaut has already left the station after completing his mission. Some speculated that Rubio had eaten a vegetable without telling anyone.
