Advanced oscillation modes in laser welding

0583074 - ÚPT 2024 RIV DE eng C - Konferenční příspěvek (zahraniční konf.)
Šebestová, Hana - Horník, Petr - Chlup, Zdeněk - Jambor, Michal - Joska, Z. - Mrňa, Libor
Advanced oscillation modes in laser welding.
Lasers in Manufacturing Conference 2023 - Proceedings. Mnichov: WLT, 2023, č. článku 160..
[Lasers in Manufacturing Conference (LiM 2023). Online (DE), 26.06.2023-29.06.2023]
Grant CEP: GA TA ČR(CZ) FW01010293
Grant ostatní: AV ČR(CZ) StrategieAV21/17
Program: StrategieAV
Institucionální podpora: RVO:68081731 ; RVO:68081723
Klíčová slova: laser welding * beam oscillation * advanced oscillation mode * weld macrostructure * ultimate tensile strength
Obor OECD: Mechanical engineering; Mechanical engineering (UFM-A)
https://www.wlt.de/sites/default/files/2023-09/Contribution_160.pdf https://www.wlt.de/lim2023-proceedings/joining-welding-and-brazing

Modern wobble laser welding heads allow a great degree of freedom in the choice of oscillation modes resulting from a superposition of two orthogonal sinusoidal functions. Yet the basic oscillation modes like circular or transversal linear mode are still the most popular in practice. Therefore, unusual oscillation modes with more complex laser spot trajectories were suggested and experimentally achieved. In this way, wavy welds were created into martensitic 22MnB5 steel. The intention was to achieve welds with variable cross-sections, yet with a continuous root. The microstructure and properties of welds were analyzed with emphasis on changes in the heat-affected zone. We aim to provide a deeper understanding of advanced oscillation modes and their impact on the resulting weld quality and mechanical properties.
Trvalý link: https://hdl.handle.net/11104/0351077