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Annual seminar Welding metallurgy and consumables for high-strength steel structures for the Arctic

The annual scientific seminar "Welding Metallurgy and Consumables for High-strength Steel Structures for the Arctic" was held on June 17 - June 18, 2019 at the Peter the Great Saint-Petersburg Polytechnic University at the Resource Center building.

This year, the seminar was organized by the Department of Theory and Technology of Welding Materials at SPbPU, and the Regional North-West Interdisciplinary Certification Center of the National Agency for Welding Control of the Russian Federation (NAKS RF). More than 60 participants took part in the seminar, including a delegation of Finnish scientists led by Project Manager Paul Kah, Associate Professor of Welding Technology at LUT University and representatives of various regional companies, research centers and design bureaus.

The seminar examines scientific advances in the welding of high-strength steels for use in the extreme conditions of the Arctic metal structures of land based and offshore wind energy systems in the framework of the international EU Russian-Finnish project “Energy-efficient systems based on renewable energy sources for the Arctic conditions”.

The following aspects were discussed:

  • Welding metallurgy of high-strength steels for Arctic structures of wind generators

  • Mathematical modelling of welding processes and weldability of high-strength steels

  • Equipment, technologies and consumables for automatic and robotic welding in manufacturing and erection of wind generators

  • Digital control systems for welding

  • Underwater welding and cutting in erection and repair of offshore structures

  • Additive technologies in manufacturing of assemblies for wind generators

A series of reports began with a speech by Professor Parshin, the head of the Department of Theory and Technology of Welding Materials. He spoke about metallurgical problems of weldability of high-strength steels for Arctic applications, as well as on underwater welding and cutting during installation and repair of offshore structures.

Report of Associate Professor Khomich was devoted to the complex topic of hydrogen diffusion in welds of high-strength steels, and Associate Professor Ivanova spoke about the effect of gas protection on the weldability of high-strength steels in wind conditions.

Two reports were presented by the LUT Research group. The young researcher Sakari Penttilä has reported on the use of intelligent welding systems, and presented an industrial system that allows to control the welding process. A report by Dr. Layus provided investigations on the influence of heat input on steels welds.

An interesting overview of the technologies for welding wind turbines structures for the Arctic was presented by CRISM Prometey by Lead Engineer Karpov. Scientific commission has noted the important role of mathematical modeling and digitalization in the study of welding processes.

At the end of the seminar, Project Manager Paul Kah thanked the presenters and the audience for their interest in the project and emphasized that the research topic of the project is interesting and promising. The next day, the agenda was advancing as planned, and the project team visited the testing center NAKS, its laboratories and expositions of the Training Scientific and Technical Center "Welding", which has a long term cooperation with SPbPU.

The annual seminar is dedicated to Professor Georgy Lvovich Petrov, who was the Head of Welding Department of the Polytechnic University in 1966 to 1982 and one of the founders of Leningrad scientific school of welding.

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