Translation. Region: Russian Federal
Source: Peter the Great St Petersburg Polytechnic University – Peter the Great St Petersburg Polytechnic University –
The traditional industry exhibition “Metalloobrabotka-2025” has ended in Moscow’s Expocentre. It is safe to say that SPbPU successfully presented its developments to ensure technological leadership in the direction of “Materials, Technologies, Production”. The Polytechnic University demonstrated a real technological process for manufacturing parts of power engineering for civil and special purposes. The exhibition participants got acquainted with special-purpose technologies and the technology of highly efficient repair of critically loaded parts of power engineering.
Director of IMMiT and Chief Designer of the Scientific and Technical Complex “New Materials, Technologies, Production”, Professor Anatoly Popovich, noted: Development of technologies for manufacturing parts of gas-pumping units using modern digital additive manufacturing technologies, in particular the technology of high-temperature selective laser melting of domestically produced metal powder materials, will reduce the cost price, terms of technological preparation of production and repair of critical units and parts, improve the quality of manufacturing components of drive gas turbine engines of gas-pumping units for enterprises of the fuel and energy complex of the Russian Federation. In particular, redesigning taking into account the advantages of additive technologies and manufacturing parts of the hot gas turbine tract will significantly increase the performance characteristics of parts and units, and the developed new materials for protective coatings, such as high-entropy alloys, will increase the service life between repairs of the units.
Thus, notes Anatoly Popovich, this will provide Russia with technological leadership in the market for the production of units and assemblies of gas turbine engines. The automated repair and restoration system will increase productivity at the surfacing stage up to five times and reduce the cost of repairs by half. Technologies for laser surfacing of difficult-to-weld and non-weld heat-resistant alloys and the developed specialized tool will expand the range of repaired parts.
On the final day of the exhibition, a series of meetings between key executors of the Peter the Great SPbPU project in the direction of “Materials, Technologies, Production” and future customers took place at the Polytechnic stand.
Mikhail Kuznetsov, Head of the Research Laboratory “LiAT” of the SPbPU Institute of Metallurgy and Metallurgy, held talks with representatives of the company JSC “EZTM” and colleagues from the State Corporation “Roscosmos”. The partners discussed current projects and prospects for joint work in the field of laser welding and additive technologies.
At the SPbPU stand, the NIL employees presented samples created using laser and additive technologies. The specialists presented components of the hot tract of gas turbine engines repaired by laser cladding, samples 7 and 10 mm thick, welded in one pass without edge preparation by laser welding and hybrid laser-arc welding, and other equally interesting exhibits.
Head of the Laboratory of Light Materials and Structures Oleg Panchenko held meetings with representatives of NPO Luch, PI Science and Innovations, NPK Morsvyazavtomatika and others. The participants discussed the possibilities of robotization of production, friction stir welding, electric arc growing, joint projects on reverse engineering in the areas of compressor and propulsion devices.
The staff of the Laboratory of Light Materials and Structures of the Institute of Metallurgy and Engineering at SPbPU demonstrated the process of producing a conical gear for heavy engineering using the electric arc growing method right at the exhibition. This method is based on melting metal wire under the influence of the energy of an electric arc.
The installation, created by engineers specifically for this exhibition, is a unique solution for reducing production costs. The technological process allows achieving record-high speeds of obtaining products (for aluminum alloys (Al) – 2.2 kg/hour, for Fe – 6 kg/hour). In addition to record productivity, the key advantage of the technology is the absence of geometric limitations of the printed product. This is the reason for the concept of the “open type” cell: the manipulator is easily installed on the rails and follows the part being grown.
The Polytechnic University stand presented a selective laser melting installation for metals (3D metal printer) “Mercury”, jointly developed by specialists from SPbPU and 3DLAM.
The peculiarity of this complex is the platform heating up to 1300 degrees, which allows printing with heat-resistant nickel alloys. During the exhibition, engineers printed samples for further laboratory tests and analysis of metal properties.
Visitors to the exhibition could see the advanced developments of the polytechnics in the unified catalog of SPbPU. It was entirely dedicated to the projects of the divisions of the Institute of Mechanical Engineering, Materials and Transport.
The debut at the Metalloobrabotka-202 exhibition is a significant event for IMMiT specialists. The event became a platform for demonstrating breakthrough solutions and the latest technologies that the St. Petersburg Polytechnic University is developing in the field of laser and additive technologies. Our achievements are not just ideas, but ready-to-manufacture solutions that shape the future, – summed up the Director of IMMiT and the Chief Designer of the KNTN “New Materials, Technologies, Production” Anatoly Popovich.
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