Posters - WindEurope Annual Event 2024

Follow the event on:


Come meet the poster presenters to ask them questions and discuss their work

We would like to invite you to come and see the posters at our upcoming conference. The posters will showcase a diverse range of research topics, and will give delegates an opportunity to engage with the authors and learn more about their work. Whether you are a seasoned researcher or simply curious about the latest developments in your field, we believe that the posters will offer something of interest to everyone. So please join us at the conference and take advantage of this opportunity to learn and engage with your peers in the academic community. We look forward to seeing you there!

PO292: How innovative welding technology can speed up the wind tower manufacturing process eightfold

Christian Brunner-Schwer, Team Lead WeldNova Project, WeldNova GmbH / Bundesanstalt für Materialforschung und -prüfung BAM


Arc-based welding processes especially multi-wire submerged arc welding, are currently used for the joining of thick plates in the onshore wind energy industry. Several layers are required to weld steels with a wall thickness of up to 30 mm, due to the limited welding depth, which limits the productivity of the process due to the high welding times. In addition, the welding process is characterised by a high heat input. Alternative welding processes, such as laser hybrid welding, are limited in their industrial application due to some process-specific challenges: increased risk of drop formation at the weld root due to the gravity; limited gap bridgeability; risk of hardening and deterioration of the mechanical properties of the weld due to high cooling rates. However, the great advantage of laser hyrbid welding technology would be that this technology would allow a significant increase in process speed and cost savings for the welding process. In this talk, we will show how we have managed to weld such components in only a single pass for the first time thanks to an innovative approach. To overcome the challenges mentioned above, a contactless electromagnetic weld backing is used, which is based on externally applied AC magnetic fields. With this bath support, the disadvantages mentioned can be eliminated and the full potential of laser beam welding can unfold. This leads to a eightfold time saving and a cost saving of over 90%. This development and the presentation vividly shows that the industry is far from having exhausted the full technical optimization potential and is intended to encourage the participants to break new ground in the field of technical innovation as well.

Event Ambassadors

Follow the event on: