ExOne says that its metal 3D printers can now binder jet a total of 21 powders into metal, ceramic and composite parts.

The company’s binder jetting process uses an industrial print head to quickly deposit a liquid bonding agent onto a thin layer of powdered particles that are either metal, sand, ceramics or composites. The process is repeated, layer by layer, until the object is complete. Depending on the material being printed, additional post-processing may be necessary.

The materials include cobalt chrome, copper, H13 Tool Steel, Inconel 625, titanium and tungsten heavy alloy, while customers are also printing ceramics such as alumina, carbon, natural and synthetic sands, silicon carbide, alone or infiltrated with silicon, tungsten carbide-cobalt. The company is also working with Oak Ridge National Laboratory to 3 print boron carbide infiltrated with aluminum.

This story uses material from ExOne, with editorial changes made by Materials Today. The views expressed in this article do not necessarily represent those of Elsevier.