Chinese Scientists Unveil New 3D Liquid Metal Printing Method

Chinese scientists from the Chinese Academy of Sciences in Beijing unveiled a new liquid-phase 3D printing method that uses a metal alloy ink to rapidly manufacture three-dimensional metal objects.

The new method makes metal printing processes faster, more affordable and energy efficient, by controlling the temperature of the medium used to deposit the metal ink. Scientists at the Academy’s Technical Institute of Physics and Chemistry’s Key Laboratory of CryoBiomedical Engineering developed the 3D printing technique to avert the metal alloy ink from oxidation.

The metal ink melts at a lower temperature which is slightly above room temperature, allowing quick development of conductive 3D metal objects. The alloy consists of tin, indium, zinc and bismuth. Syringes are used to inject droplets into cooling fluids which later form into a solid structure. … (Read more)