To print metal powders in 3D, the printing room where the powders are sinterized/fused must have a modified atmosphere.
Moreover, to print any reactive material (such as Titanium and Aluminum) and avoid any risk of explosion, the printing room must be filled with an inert gas, and in this case, we are forced to use Argon.
Argon (Ar) is a colourless, inodorous gas, heavier than asphyxiating air, used in various working activities. Because of its specific weight, it becomes very difficult to manage this gas and could put the health of anyone who deals with it at serious risk.
On the other hand, to print using steel and, in general, non-reactive materials, the printing room can be filled with nitrogen..
Nigtrogen (N) is a noble gas, easily extractable from the air using a specific generator (provided together with the 3D4STEEL printer), with a specific weight inferior to oxygen and therefore less dangerous for man.
If your company, already has an installation for the distribution of nitrogen, you can connect the 3D4STEEL printer directly to your installation, making your production even more economical.