Liquid Metal: A new evolution of 3D printing

Researchers at the University of North Carolina have developed 3D printing technology a new step in the use of liquid metal materials.

>>> Video: 3D printing technology using liquid metal

Dr. Michael Dickey and his colleagues decided to make a mixture of liquid metal from gallium and indium, which did not freeze even at room temperature. When the metal comes in contact with the air, it develops itself, creating a thin shell capable of fixing the shape of the liquid.

Currently, Dickey and his team are using a hydraulic syringe to squeeze out the alloys and shape it. These liquid metal droplets can be easily aligned. In particular, they may be surrounded by a number of other materials such as rubber that help the metal structure to be easily stretched and distorted at will.

Next, the researchers will replace the syringe with 3D printers' injections, to create the machine. Interestingly, this liquid metal material is not toxic and can be used to produce commercial items.

Speaking of practical applicability, liquid metal can now be used to make any object or machine that needs to be tough and easy to mold. However, liquid metal is not cheap at all, it is 100 times more expensive than conventional 3D printing.