Comparison of dynamic changes in the capillary geometry and laser back-reflection during deep penetration laser welding of copper using high-speed synchrotron X-ray imaging [143]

Tobias Spieth¹, Michael Haas^1,2, Felix Zaiß¹, Christoph Spurk³, Alexander Olowinsky⁴, Guilherme Abreu Faria⁵, Christian Hagenlocher¹, Thomas Graf¹

1: University of Stuttgart, Institut für Strahlwerkzeuge (IFSW), Germany; 2: University of Stuttgart, Graduate School of Excellence advanced Manufacturing Engineering (GSaME), Germany, Germany; 3: RWTH Aachen University, Chair for Laser Technology LLT, Germany; 4: Fraunhofer-Institute for Laser Technology ILT, Germany; 5: Helmholtz-Zentrum Hereon, Institute of Materials Physics, Germany

Copper Hairpin Welding Utilizing a 4 kW Blue Laser: Investigating Deep Penetration and Conduction Mode for Spatter and Porosity Reduction

Matthias Zutt^1,2, Carola Forster^1,2, Thomas Lang^1,2, Michael Schmidt^1,2, Dominic Bartels^1,2

1: Friedrich-Alexander-Universität Erlangen-Nürnberg, Germany; 2: Erlangen Graduate School in Advanced Optical Technologies

Keyhole Stability and Mechanical Performance of Laser Welded AA6005 under kHz-to-MHz Frequency Modulation via Coherent Beam Combining [144]

Reshad Bakhtari¹, Sharhid Jabar¹, Hiren R. Kotadia², Pasquale Franciosa¹

1: Warwick Manufacturing Group, University of Warwick, Coventry CV4 7AL, United Kingdom; 2: School of Engineering and Built Environment, Liverpool John Moores University, Liverpool, UK

Melting Efficiency in High-Speed Copper Welding with Blue Lasers [145]

Daniel Dorschner, Ralf Ossenbrink, Klaus Schricker

BTU Cottbus-Senftenberg, Germany