3DPro® Recirc

This system is integrated into a 3D printer, it eliminates impurities generated by the laser process, such as welding fumes, spatters, as well as oxygen and moisture derived from metal powders.

This system has many other advantages: reduction of the purifying time, less gas consumption, stabilisation of the 3D printing process.

Nippon Sanso R&D centres carried out some studies showing how these two pollutants cause imperfections in the metallurgical structure of products manufactured with the 3D printing process. Thanks to these studies, it was also possible to understand that the presence of both pollutants inside the chamber is directly proportional to the number of defects in the product. Our company has developed the 3DPro® Purifier, which drastically reduces having defective products due to oxygen and moisture presence. By eliminating these two parameters, the process can be stable and standard.

3D printing processes can be of different types: PBF, EBM, DED, FDM, and the most recent one WAAM. There are also many different metals, often noble ones, that can also be processed, reason why this is an expensive process All these different processes have a common characteristic, which is to protect the manufactured product from oxidisation during construction and heat treatment phases.

So, to preserve the metallurgical characteristics of the metal powder essential to obtain the finished product, it is important to use high-quality gas.