IN THE AREA “ADDITIVE TECHNOLOGIES” A SECTORAL INTEGRATOR WAS FOUNDED WITHIN THE STRUCTURE OF FUEL COMPANY TVEL, it consolidates the actions of the sector companies in the area of additive technologies.

LLC RusAT coordinates the activities of a pool of enterprises that comprises LLC RPA Centrotech, JSC CMP, FSUE FFNC VNIIEF, FSUE RFNC VNIITF, FSUE RI RPA Luch, JSC RPA TSNIITMASH and others.

The Additive Technology Center is deployed on site of JSC MCZ (an enterprise of Fuel company TVEL), it is intended for establishment of a demonstration research and engineering site, where the technologies will be tested and provided 3D-printing services. Similar additive centers will be created in Novouralsk and Sarov.

RusAT is engaged in development of two additive printing technologies: selective laser melting (so-called "stratified melting”) and direct metal fusing, when the metal powder is delivered to the fusing area simultaneously with the laser beam.

A pilot production facility for manufacturing of powders from alloys of non-ferrous metals and stainless steel is elaborated at RPA Centrotech (an enterprise of Fuel company TVEL) in Sverdlovsk region. The useful output of fractions of additive powders from 20 to 60 microns will attain 55% minimum. The production of powders is also planned to be started at JSC CMP (an enterprise of Fuel company TVEL) in Udmurtia.

RusAT has developed a line of printers with different construction volumes. A three-dimensional printer specified with construction volume dimensions 300x300x400 mm was selected as a base model. In addition, 3D-printers with dimensions of the construction volumes 600х600х500 mm and 160х160х250 mm are available in the line.
There are some models in the line that are capable to operate with two powders in production of one component, which provides an opportunity to combine the materials in manufacturing of products. Depending on the model the number of lasers to be installed to one 3D printer varies between 1 and 4 lasers for improvement of productivity in printing of metal products.
The experts of Rosatom are developing new national standards GOST R for application of additive technologies. These standards are the basis for elaboration of regulatory framework for certification of materials and products necessary for additive production in nuclear and other industries.

The additive technologies are specified with a number of advantages: they allow to fabricate the products the most complex forms, which cannot be achieved by applying mechanical processing or casting. In addition, three-dimensional printing enables to significantly reduce the weight of the products and production schedules of prototypes. In addition, modern 3D printers are capable to quickly reconfigure the print options for manufacturing of products for different purposes or dimensions, individual or mass production.