9:00am - 9:20am

Local curvature changes of the melt pool surface and their connection to the formation of undercuts in laser welding [125]

Robert Steinhoff, Johannes Michel, Michael Sawannia, Marko Jurukovic, Tobias Ehnis, Christian Hagenlocher, Thomas Graf

Institut für Strahlwerkzeuge (IFSW), University of Stuttgart, Pfaffenwaldring 43, 70569 Stuttgart, Germany

9:20am - 9:40am

Effects of Spatial Energy Deposition on Weld Seam Geometry and Melt Pool Dynamics in Parallel Dual-Beam Laser Welding [126]

Christoph Spurk¹, Nivetha Muthuvijaypandian², Tobias Florian², Nils Bena¹, Tobias Berger^3,4, Zubin Babajan¹, Martin Traub⁴, André Häusler⁴, Alexander Olowinsky⁴, Andreas Otto², Arnold Gillner¹

1: RWTH Aachen University, Chair for Laser Technology LLT, Steinbachstraße 15, 52074 Aachen; 2: TU Wien, Institute of Production Engineering and Photonic Technologies, Getreidemarkt 9, 1060 Vienna,; 3: FH Aachen – University of Applied Sciences, Bayernalle 11, 52066 Aachen, Germany; 4: Fraunhofer Institute for Laser Technology ILT, Steinbachstraße 15, 52074 Aachen, Germany

9:40am - 10:00am

Influence of Inter-Beam Distance on Keyhole Depth Instability and Weld Seam Coupling in Dual-Beam Welding of CuSn6 Alloy [127]

Nivetha Muthuvijayapandian¹, Christoph Spurk², Tobias Florian¹, Constantin Zenz¹, Marc Hummel^2,3, Alexander Olowinsky³, Felix Beckmann⁴, Julian Moosmann⁴, Andreas Otto¹

1: TU Wien, Institute of Production Engineering and Photonic Technologies, Getreidemarkt 9, 1060 Vienna, Austria.; 2: RWTH Aachen University, Chair for Laser Technology LLT, Steinbachstraße 15, 52074 Aachen, Germany.; 3: Fraunhofer Institute for Laser Technology ILT, Steinbachstraße 15, 52074 Aachen, Germany; 4: Institute of Materials Physics, Helmholtz-Zentrum Hereon, Max-Planck-Str. 1, 21502 Geesthacht, Germany

10:00am - 10:20am

Acoustic emission-based monitoring of oil contamination during laser beam welding [128]

Fan Yang¹, Cemil Emre Ardic^3,2, Kodera Sayako³, Teffi Saravanapavan³, Leander Schmidt¹, Florian Römer^2,3, Jean Pierre Bergmann¹

1: Production Technology Group, Technische Universität Ilmenau, Gustav-Kirchhoff-Platz 2,98693 Ilmenau, Germany; 2: Technische Universität Ilmenau, Signal Processing for Intelligent Sensor Systems Group, 98693 Ilmenau; 3: Fraunhofer Institute for Nondestructive Testing IZFP, Campus E3 1, 66123 Saarbrücken, Germany

10:20am - 10:40am

Targeted Use of an Intensity Maximum in Laser Beam Welding to Increase Weld Depth with Reduced Spatter Formation [129]

Marcel Möbus^1,2, Ronald Pordzik¹, Thomas Seefeld¹, Peer Woizeschke²

1: BIAS - Bremer Institut für angewandte Strahltechnik, Bremen, Germany; 2: LMP+ research group, TU Dortmund University, Germany