Translation. Region: Russian Federal
Source: Peter the Great St. Petersburg Polytechnic University –
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During the International Scientific conference "Implementation of Innovations. New Materials and Additive Technologies" (VINMiAT-25), which took place at the Technopolis Polytech Scientific Research Institute, the School of Young Scientists was in operation. It was attended by students, postgraduates, early career researchers, as well as leading specialists in the field of additive technologies, materials science, and digital engineering.
The main objectives of the school are to ensure the transfer of advanced knowledge about modern production methods, to promote the growth of professionalism of young personnel and to introduce them to advanced trends in the field of scientific developments.
After the plenary session, the school participants worked in two sections: “Welding and related technologies/Nature-like materials and additive technologies for their production” and “Equipment, automation and robotics of innovative technologies”.
In the first section, Yarob Aldaiye, an engineer at the Research Laboratory of LiAT IMMiT, presented a report entitled "Assessment of residual deformations of a welded joint formed using various welding methods". The scientist analyzed the influence of the welding method on the level of residual deformations, energy input and the width of the heat-affected zone, as well as on technical and economic characteristics. As part of the work, technologies for welding steel samples using various methods were created, control samples were welded to assess residual deformations, metallographic studies of welded joints were conducted, residual deformations of welded samples were analyzed and compared, and a technical and economic justification for the selected welding methods was carried out.
The second report, “Restoration of nozzle blades made of cobalt alloy MAR-M 509 using laser gas-powder surfacing,” was given by Vladimir Protsenko, an engineer at the Research Laboratory of LiAT.
A separate presentation was devoted to the restoration of nozzle blades made of cobalt and nickel alloy using laser cladding. SPbPU scientists developed a laser cladding technology and a method for preventing crack formation. The cladding blades successfully passed operational tests.
Anna Abdrakhmanova, an engineer at the Materials Design and Additive Manufacturing Laboratory, presented a report on the topic of "Study of Mechanical Properties of Continuously Reinforced Nature-Like Polymer Composite". Maria Zaitseva, an engineer at the Russian-Chinese Research Laboratory of Functional Materials, spoke about the features of selective laser melting of DUO steel with platform heating.
Victoria Nefedova, an engineer at the Scientific and Educational Center for Structural and Functional Materials, presented the development of biocompatible titanium-tantalum composites using selective laser melting, and her colleague, engineer Alexander Zolotarev, spoke about the modification of the heat-resistant alloy BZh159 with TiB₂ and Y₂O₃ nanoparticles. Then Alexander Zaitsev, an engineer at the Russian-Chinese Laboratory for Functional Materials, gave a report on the production of a polymer-ceramic material using the filament deposition modeling method (FDM technology).
The event continued with a traditional tour of the IMMiT laboratories, where the school participants were able to get acquainted with modern equipment, industrial 3D printing systems, and discuss the knowledge gained with leading scientists working at the institute.
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