Invited Talk: Process Improvement in Laser Cutting: Physical Fundamentals of Gas Flow and Its Impact on Cut Quality

Madlen Borkmann, Achim Mahrle, Jan Hauptmann

Fraunhofer Institute for Material and Beam Technology IWS, Winterbergstraße 28, 01277 Dresden, Germany

Optimizing Laser Beam Interaction for High-Power Cutting of Stainless Steel Using Dynamic Beam Shaping

Stefan Ulrich¹, Alper Tarkan², Hüseyin Mercon², Michael Steinert¹, Claudia Reinlein¹

1: ROBUST AO GmbH, Germany; 2: Nukon Lazer Makina Metal San

Evaluation of the influence of the dynamics of the melt in the cutting kerf on the formation of burr during laser cutting with in-situ high-speed imaging

Sven Thomas^1,2, Sem Massa¹, Max Rettenmeier^1,2, Steffen Wagenmann³, Tim Hesse¹, Nicolai Speker¹, Christian Hagenlocher⁴, Thomas Graf^2,4

1: TRUMPF Laser- und Systemtechnik SE, Germany; 2: Graduate School of Excellence advanced Manufacturing Engineering GSaME, Germany; 3: TRUMPF Werkzeugmaschinen SE & Co. KG, Germany; 4: Institut für Strahlwerkzeuge IFSW, Germany

Investigating the Effect of Different Axial Oscillation Patterns on Laser Fusion Cutting Process

Matteo Busatto¹, Julia Meyer², Leonardo Caprio¹, Davide Gandolfi³, Patrick Herwig², Mattia Vanin³, Barbara Previtali¹

1: Department of Mechanical Engineering, Politecnico di Milano, Via La Masa 1, 20156 Milan, Italy; 2: Fraunhofer Institute for Material and Beam Technology IWS, Winterbergstr. 28, 01277 Dresden, Germany; 3: Adige S.P.A., BLM GROUP, Via per Barco 11, 38056 Levico Terme (TN), Italy

Lasercutting of gigacasted components for future mobility

Markus Stump¹, Jan-Hendrik Koch¹, Florian Hüsing¹, Christian Brecher^1,2

1: Fraunhofer Institute for Production Technology IPT, Steinbachstraße 17, 52074 Aachen, Germany; 2: Laboratory for Machine Tools and Production Engineering WZL of the RWTH Aachen University, Campus-Boulevard 30, 52074 Aachen, Germany

Laser Cutting of Ultrathin Ribbon Ceramics

Xinghua Li

Corning Incorporated, United States of America

Innovative high power laser cutting of 1-m reinforced concrete with gravity

Yosuke Kawahito^1,2, Hitoshi Ozaki³, Michiko Mori¹, Yuya Kino⁴, Tsuyoshi Nakamura¹, Hiroyuki Yoshida⁵, Hisroshi Kawakami³, Muneo Hori¹

1: Japan Agency for Marine-Earth Scinece and Technology, Japan; 2: Osaka University, Japan; 3: Mie University, Japan; 4: ARK Information Systems, INC., Japan; 5: Tokyo Electirc Power Services Co., Ltd., Japan

Laser cutting of thermoplastic CFRP semi-finished products for enhanced resource efficiency

Hagen Dittmar¹, Richard Staehr¹, Peter Jaeschke¹, Stefan Kaierle^1,2

1: Laser Zentrum Hannover e.V., Germany; 2: Leibniz University Hannover, Institute of Transport and Automation Technology, Germany

NIR laser cutting of flax fiber reinforced composites with absorptive additives

Christian Strohl¹, Johannes Baur², Christian Hagenlocher¹, Daniel Holder¹, Thomas Graf¹

1: IFSW Universität Stuttgart, Germany; 2: IFB Universität Stuttgart, Germany

Hybrid Laser-Mechanical Machining of Ceramic Matrix Composites

Joseph Nix, Chris Ellis, Priyanka Ghosh, Sam Smith, Sundar Marimuthu

The Manufacturing technology Centre, United Kingdom

Laser cutting of glass ribbon via melting at the draw

Anatoli A. Abramov, Christopher Chilson, Mariia A. Lapina, Artemiy A. Shamkin, Boris N. Tsvetkov

CORNING, United States of America

AI-Based Real-Time Monitoring and Failure Detection in High-Speed Laser Beam Cutting

Gerald Manuel Kolter, Frank Schneider

Fraunhofer-Institute for Lasertechnology, Germany

Development of a predictive control strategy for compensating dimensional errors due to thermal effects in laser tube cutting processes

Lorenzo Bertella¹, Andrea Trivisonno², Cristian Agostini², Davide Gandolfi², Matteo Pacher², Giacomo Moretti¹, Mattia Vanin²

1: Università di Trento, Dipartimento di Ingegneria Industriale, Italy; 2: Adige S.p.A, BLM Group, Italy

Towards velocity-based feedback control in laser cutting: benchmarking system capability on an industrial case study

Sofia Guerra^1,2, Leonardo Caprio¹, Matteo Pacher³, Davide Gandolfi³, Mattia Vanin³, Mara Tanelli², Sergio Savaresi², Barbara Previtali¹

1: Department of Mechanical Engineering, Politecnico di Milano, Italy; 2: Department of Electronics, Information and Bioengineering, Politecnico di Milano; 3: Adige SpA, BLM Group

Bayesian optimization to enhance productivity in laser piercing

Nico Heinz^1,2, Niklas Weckenmann², Andreas Michalowski³

1: Graduate School of Excellence advanced Manufacturing Engineering (GSaME), University of Stuttgart, Germany; 2: Precitec GmbH & Co. KG; 3: Institut für Strahlwerkzeuge (IFSW), University of Stuttgart, Germany

Invited Talk: Benefits and Potentials of Dynamic Beam Shaping in Laser Welding

Christian Hagenlocher¹, Robert Steinhoff¹, Johannes Michel¹, Felix Zaiß¹, Shumpei Fujio^1,2, Michael Haas^1,3, Michael Sawannia¹, Thomas Graf¹

1: Institut für Strahlwerkzeuge, University of Stuttgart, Pfaffenwaldring 43, 70569 Stuttgart, Germany; 2: Joining and Welding Research Institute, Osaka University,11-1 Mihogaoka Ibaraki, Osaka 567-0047, Japan; 3: Graduate School of Excellence advanced Manufacturing Engineering (GSaME), University of Stuttgart, 70569 Stuttgart, Nobelstr. 12, Germany

Deformable mirror for real-time beamshaping in high power laser manufacturing

Ionut Balasa¹, Lorenzo Ulliana¹, Stefano Bonora^1,2

1: Dynamic Optics S.R.L., Via Giovanni Savelli 72, 35129, Padova (PD), Italy; 2: CNR-Istituto di Fotonica e Nanotecnologie, via Trasea 7, 35131, Padova, Italy

Influence of Laser Beam Shape on Process Stability and Keyhole Porosity Formation in Automotive Laser Welding Applications

Marcin Piotr Serdeczny¹, Tin Brdnik²

1: Flow Science Inc., Santa Fe, United States of America; 2: Flow Science Deutschland, Rottenburg, Germany

Qualification of a 532nm cw single mode CBC fiber laser with high power for laser welding of copper

Stephan Börner¹, Dirk Dittrich¹, Robert Drexler¹, Emily Jane Campbell¹, Andreas Wetzig¹, Rinat Perlman², Yaniv Vidne², Eyal Shekel²

1: Fraunhofer IWS, Germany; 2: Civan Advanced Technologies ltd., Israel

Shielding gas supply fixture for improvement in weld quality of laser welded fuel cell bipolar plates

Apoorva Nagarkar¹, Patrick Sperling¹, Jan-Hendrik Koch¹, Florian Hüsing¹, Christian Brecher^1,2

1: Fraunhofer Institute for Production Technology IPT, Steinbachstraße 17, 52074 Aachen, Germany; 2: Laboratory for Machine Tools and Production Engineering WZL of RWTH Aachen University, Campus-Boulevard 30, 52074 Aachen, Germany

Aluminum battery pack laser welding with a 4-spots beam-shaper compatible with all lasers

Avinash Kumar¹, Adeline Orieux¹, Nicolas Gaillard², David Lemaitre², Gwenn Pallier¹, Guillaume Labroille¹

1: Cailabs, France; 2: Institut Maupertuis, France

Using optical coherence tomography to better detect defects during laser welding of hairpins

Eveline Reinheimer¹, Matthias Beranek²

1: Dr. Ing h.c.F. Porsche AG, Germany; 2: TRUMPF Laser- und Systemtechnik GmbH

Depth Measurement Performance of OCT During Laser Welding with Single Mode Core and Ring Beam Configurations

Serge Dib¹, Tianqiu Xu¹, Daniele Colombo², Ali Gökhan Demir¹

1: Department of Mechanical Engineering, Politecnico di Milano, Via La Masa 1, 20158 Milan, Italy; 2: BLM Group Adige Spa, Via Per Barco 11, 38056 Levico Terme, Italy

Investigations on the detectability of penetration depth fluctuations in laser welding by means of optical coherence tomography

Lucas Westermeyer¹, Thomas Seefeld^1,2

1: BIAS – Bremer Institut für angewandte Strahltechnik GmbH, Klagenfurter Straße 5, 28359 Bremen, Germany; 2: MAPEX Center for Materials and Processes—Universität Bremen, Bibliothekstraße 1, Bremen 28359, Germany

Influence of secondary aluminum content on casting and weldability of die-cast material for new car body concepts with improved sustainability

Dirk Dittrich¹, Axel Jahn¹, Linda Ullmann¹, Charlotte Graner¹, Dirk Lehmhus², Christoph Pille², Marco Haesche², Leonardo Fernando Gomes²

1: Fraunhofer Institute for Materials- and Beam Technology, Germany; 2: Fraunhofer Institute for Manufacturing Technology and Advanced Materials, Germany

High-speed synchrotron X-ray imaging of the melt flow during laser beam welding of high-alloy steel

Christian Diegel¹, Leander Schmidt¹, Klaus Schricker^1,6, Marc Seibold¹, Felix Zaiß², Christian Hagenlocher², Christoph Spurk³, Marc Hummel^3,4, Alexander Olowinsky⁴, Felix Beckmann⁵, Julian Moosmann⁵, Thomas Graf², Jean Pierre Bergmann¹

1: Technische Universität Ilmenau, Production Technology Group, Germany; 2: University of Stuttgart, Institut für Strahlwerkzeuge (IFSW); 3: RWTH Aachen University, Chair for Laser Technology LLT; 4: Fraunhofer-Institute for Laser Technology ILT; 5: Institute of Materials Physics, Helmholtz-Zentrum Hereon; 6: Brandenburg University of Technology Cottbus-Senftenberg

Analysis of the influence of the capillary shape on monitoring signals in deep penetration laser welding

Michael Haas^1,2, Felix Zaiß¹, Johannes Wahl¹, John Powell¹, Christian Hagenlocher¹, Andreas Michalowski¹

1: Institut für Strahlwerkzeuge (IFSW), University of Stuttgart, Germany; 2: Graduate School of Excellence advanced Manufacturing Engineering (GSaME), University of Stuttgart, Germany

Influence of the vapor plume on the laser beam caustic during deep penetration laser welding

Johannes Wahl¹, Christian Frey², John Powell¹, David Brinkmeier¹, Felix Zaiß¹, Michael Haas¹, Simon Olschok², Uwe Reisgen², Christian Hagenlocher¹, Thomas Graf¹

1: University of Stuttgart, Germany; 2: RWTH Aachen University

Development of a continuous joining process for metallic bipolar plates with multiple laser beam welding and bonding

Andrea Berger, Axel Jahn, Maurice Langer, Peter Rauscher, Benjamin Keßler, Sabine Nieke, Marko Seifert, Jens Liebscher

Fraunhofer IWS, Germany

Advances in lack of fusion defect formation mechanism, modelling, and mitigation in laser beam welding: a review

Philbert Muhayimana, Leander Schmidt, Christian Diegel, Jean Pierre Bergmann

Technische Universität Ilmenau, Production Technology Group, Gustav-Kirchhoff-Platz 2, 98693 Ilmenau, Germany

Numerical analysis of process parameters for laser wire welding

Gaizka Urretavizcaya^1,2, Maialen Areitioaurtena¹, Mario Javier Cabello¹, Miguel Morales²

1: Ikerlan S.Coop, Spain; 2: Centro Láser, Universidad Politécnica de Madrid

Thermo-Mechanical Modelling to Predict Crack Formation in Beam-Shaped Laser Welding of Recycled AA6060 Alloys

Mahsa Rasoulisamar¹, Hiren R Kotadia^1,2, Pasquale Franciosa¹

1: Warwick University, United Kingdom; 2: Liverpool John Moores University, United Kingdom

Solidification Cracking Susceptibility of AA6082 Alloy to Dynamic Beam Shaping During Autogenous Laser Welding

Ahmad Reshad Bakhtari, Sattar Ghasemi Goneyrani, Pasquale Franciosa

Warwick Manufacturing Group, The University of Warwick, Coventry, CV4 7AL, United Kingdom

Transverse hot cracking in high-speed laser welding of high-strength aluminum alloys

Johannes Michel, Jonas Wagner, Frauke Holder, Felix Zaiß, Michael Haas, Christian Hagenlocher, Thomas Graf

University of Stuttgart, Germany

Selective Element Evaporation via Laser De-Alloying to Improve the Formability of High-strength Aluminium Alloy 7075

Marcel Stephan^1,2, Dominic Neumayer¹, Lova Chechik^2,3, Dominic Bartels^1,2,3, Stephan Roth^1,2, Michael Schmidt^2,3

1: Bayerisches Laserzentrum gemeinnützige Forschungsgesellschaft mbH (BLZ), Konrad-Zuse-Straße 2-6, 91052 Erlangen, Germany; 2: Friedrich-Alexander-Universität Erlangen-Nürnberg (FAU), Erlangen Graduate School in Advanced Optical Technologies (SAOT), Paul-Gordan-Str. 6, 91052 Erlangen, Germany; 3: Friedrich-Alexander-Universität Erlangen-Nürnberg (FAU), Institute of Photonic Technologies (LPT), Konrad-Zuse-Straße 3-5, 91052 Erlangen, Germany

Mechanical and microstructural characterization of cold sprayed aluminum-stainless steel dissimilar laser welding

Yeong Gil Jo^1,2, Seung Hwan Lee², Minjung Kang¹

1: Korea Institute of Industrial Technology, Korea, Republic of (South Korea); 2: Hanyang University, Korea, Republic of (South Korea)

Comparison of different enamel removal technologies for laser welded copper hairpins: laser stripping and mechanical milling

Giulio Borzoni¹, Daniele Nocciolini¹, Rubino Corbinelli¹, Alessandro Bartoli², Ali Gökhan Demir³

1: IMA Automation, Strada S. Appiano 8/A, 50028 Barberino Tavarnelle, Italy; 2: El. En. Laser, Via Baldanzese 17, 50041 Calenzano, Italy; 3: Department of Mechanical Engineering, Politecnico di Milano, Via La Masa 1, 20156 Milan, Italy

New hybrid welding method WoGaWe

Libor Mrna, Hana Sebestova, Jan Novotny

Institute of Scientific Instruments CAS, Czech Republic

A study on the effect of laser heat treatment on the joining of high carbon steels by laser welding

Gökan Yılmaz^1,2, Burak Kişin², Deniz Kaya², Murat Reis², Kadir Çavdar²

1: R&D Department, Durmazlar Makina San. ve Tic. A.Ş., 16125, Bursa, Turkey; 2: Department of Mechanical Engineering, Bursa Uludag University, Görükle Campus, 16059, Bursa, Turkey

Enabling the Manufacturing of the Longitudinal Butt Joint of the World’s Largest Thermoplastic Aircraft Structure

Eric Pohl¹, Maurice Langer¹, Peter Rauscher¹, Andrés Fabián Lasagni^1,2

1: Fraunhofer Institute for Material and Beam Technology IWS; 2: Technische Universität Dresden, Chair of laser-based Manufacturing

Laser direct joining of metal-polymer hybrid connections with glass fiber reinforced high-performance polymers

Lea Kroth¹, Andreas Schkutow², Wolfgang Burgmayr¹, René Geiger¹

1: Evosys Laser GmbH, Germany; 2: Technische Hochschule Nürnberg Georg Simon Ohm

Innovative laser direct joining of PEEK-CFRP and light metals for carbon neutrality

Tsuyoshi Nakamura¹, Yosuke Kawahito¹, Tomio Iwasaki², Michiko Mori¹, Kazuya Kitada¹, Akira Masago¹, Hitomi Tonosaki¹

1: Japan Agency for Marine-Earth Science and Technology, Japan; 2: Hitachi, Ltd.

Blue-Infrared hybrid laser welding technology for dissimilar metals between copper and stainless steel

Decai HUANG, Xuezhong WANG, Wei ZHANG, Yi GAN, Jian YANG

Guangdong Hall Laser Technology Co., Ltd.

Indirect Laser Welding: A Novel Approach for Aluminium-Copper Joints

John Erik Lagemann, Danka Labus Zlatanovic, Leander Schmidt, Majd Mustafa, Jean Pierre Bergmann

Technische Universität Ilmenau, Germany

Intermetallic Phase Formation in Copper-Aluminum Laser Welding: Indirect vs. Conventional Approaches

Majd Mustafa, Danka Labus Zlatanovic, Leander Schmidt, John Erik Lagemann, Jean Pierre Bergmann

Technische Universität Ilmenau, Production Technology Group, Gustav-Kirchhoff-Platz 2, 98693 Ilmenau, Germany

unidirectional laser beam welding of stainless steel and titanium

Thomas Krichel, Sebastian Limburg, Helge Schaper, Ralf Risters

RJ Lasertechnik GmbH, Germany

Cryogenic Hydrogen Tanks via Additive Manufacturing and Laser Beam Welding in Vacuum

Benjamin Gerhards, Benedikt Gerhards, Frederik Diersmann

LaVa-X GmbH, Germany

Laser beam welding of additive manufactured (L-PBF) aluminium AlSi7Mg0.6 and AlZn5.5MgCu: Welding process development and weld seam properties

Benjamin Keßler¹, Thomas Kairet², Olivier Rigo², Pierre Billy³, Petra Svarova³, Dirk Dittrich¹

1: Fraunhofer Institute for Material and Beam Technology IWS, Germany; 2: Sirris, Belgium; 3: CRM group, Belgium

Elucidation of the Spatter Suppression Mechanism in Keyhole Welding of Steel Using a 16kW Disk Laser

Yuji SATO, Masahiro Tsukamoto

Joining and Welding Research Institute, Osaka University, Japan

Laser keyhole welding of dissimilar material combinations with complex intensity distributions

Manuel Marbach¹, Matthias Hoebel¹, Jean Pierre Bergmann²

1: Fachhochschule Nordwestschweiz FHNW, Switzerland; 2: Technische Universität Ilmenau

Enhancing Laser Welding Performance of 6082 Aluminum Alloys with BrightLine Technology and Bifocal Optics

Ecem Demir, Cemal Esen, Andreas Ostendorf

Ruhr Universität Bochum, Germany

Analysis of the influence of dynamic and static beam shaping on the melt flow and the melt pool geometry

Jonas Wagner, Peter Stritt, Alexander Ilin, Philipp Krüger, Reiner Ramsayer

Robert Bosch GmbH, Robert-Bosch-Campus 1, 71272 Renningen, Germany

Analysis of the dynamic behaviour of keyhole and melt pool geometry during laser beam welding with dynamic beam shaping at high frequencies

Robert Steinhoff¹, Michael Sawannia¹, Tobias Spieth¹, Jonas Wagner², Peter Stritt², Christian Hagenlocher¹, Thomas Graf¹

1: Institut für Strahlwerkzeuge (IFSW), University of Stuttgart, Pfaffenwaldring 43, 70569 Stuttgart, Germany; 2: Robert Bosch GmbH, Robert-Bosch-Campus 1, 71272 Renningen, Germany

Enhancing the laser weld seam quality with dynamic beam shaping and Bayesian optimization

Kim Glumann¹, Michael Sawannia¹, Michael Haas^1,2, Tobias Menold¹, Volkher Onuseit¹, Andreas Michalowski¹

1: University of Stuttgart, Institut für Strahlwerkzeuge (IFSW); 2: University of Stuttgart, Graduate School of Excellence advanced Manufacturing Engineering (GSaME)

Enhanced Inconel 625 coatings produced by High-Speed Laser Cladding

Ane Solana, Josu Leunda, Carlos Soriano

Tekniker, Spain

Laser-modified wire arc cladding

Hana Šebestová, Jan Gross, Libor Mrňa

Institute of Scientific Instruments of the Czech Academy of Sciences, Czech Republic

About the Hard Particle Transport and Incorporation in High-Speed Laser Melt Injection

Philipp Warneke¹, Lucas Westermeyer¹, Annika Bohlen¹, Thomas Seefeld^1,2

1: BIAS - Bremer Institut für angewandte Strahltechnik GmbH, Klagenfurter Straße 5, 28359 Bremen, Germany; 2: MAPEX Center for Materials and Processes, Universität Bremen, Bibliothekstraße 1, 28359 Bremen, Germany

Laser melt injection of spherical fused tungsten carbide and niobium carbide on aluminium bronze substrates for enhanced cavitation erosion resistance

Minkeshkumar Ramoliya¹, Annika Bohlen¹, Thomas Seefeld^1,2

1: Bremer Institut für angewandte Strahltechnik GmbH, Germany; 2: MAPEX Center for Materials and Processes - University of Bremen, Germany

Reconfigurable laser head for laser-based processing in the automotive sector.

Eva Vaamonde¹, Andrés González¹, David Diego Vallejo¹, Adrián Pérez¹, Joaquin Piccini², Horacio Carlos Nadale²

1: AIMEN Technology Center, Spain; 2: Gestamp, Spain

Applying laser welding in power plant part repair

Isarawit Chaopanich, Vissaruud Preebut, Watit Luanngam, Chattapat Khamenkit, Wirat Sirisappaibun

egat, Thailand

Laser cleaning of chewing gum residues on natural stone and rapid assessment by hyperspectral imaging

Félix Quintero^1,2, Valentina Reinoso², Daniel Jiménez-Desmond³, Laura Andrés-Herguedas³, Jesús del Val¹, Mónica Fernández-Arias^1,2, Óscar Barro^1,2, Alberto Ramil⁴, J. Santiago Pozo-Antonio³, Juan Pou^1,2

1: CINTECX, Universidade de Vigo, LaserON, Spain; 2: Dpto. Física Aplicada, Universidade de Vigo, Spain; 3: CINTECX, Universidade de Vigo, GESSMin, Spain; 4: CITENI, Universidade da Coruña, Laboratorio de Aplicaciones Industriales del Láser, Spain.

Adhesive-free joining of paper through laser-based material modification

Florian Lull¹, Volker Franke¹, Fabian Kayatz², Mathias Kott², Grethel Iturralde², Robert Protz³, André Lehmann³, Christer-Clifford Schenke⁴, Stephan Kronenberger⁴

1: Fraunhofer IWS; 2: Fraunhofer IVV; 3: Fraunhofer IAP; 4: Fraunhofer IWU

Production of Carbon Black/Polyamide 11 Coatings on Metallic Components by Directed Energy Deposition with a Diode Laser

Alexander Wittmann^1,2, Srijita Chakraborty¹, Colin Beck³, Hannes Freiße⁴, Dominic Bartels^1,2,5, Sebastian-Paul Kopp^1,2,5, Michael Schmidt^1,2,5

1: Institute of Photonic Technologies (LPT), Friedrich-Alexander-Universität Erlangen-Nürnberg, Konrad-Zuse-Straße 3/5, 91052 Erlangen, Germany; 2: Erlangen Graduate School in Advanced Optical Technologies (SAOT), Friedrich-Alexander-Universität Erlangen-Nürnberg, Paul-Gordan-Straße 6, 91052 Erlangen, Germany; 3: BLC Lasercladding GmbH, Im Berggarten 12, 56470 Bad Marienberg (Westerwald), Germany; 4: Kugler Bimetal SA, Chem. du Château-Bloch 17, 1219 Le Lignon, Switzerland; 5: Bayerisches Laserzentrum GmbH (BLZ), Konrad-Zuse-Straße 2/6, 91052 Erlangen, Germany

Polishing of metals with femtosecond GHz-burst laser

Théo Guilberteau^1,2, Manon Lafargue^1,3, John Lopez¹, Laura Gemini², Inka Manek-hönniger¹

1: Université de Bordeaux-CNRS-CEA, CELIA UMR 5107, 33405 Talence, France; 2: ALPhANOV, Rue François Mitterrand, 33400 Talence, France; 3: Amplitude, Cité de la Photonique, 11 Avenue de Canteranne, 33600 Pessac, France

Experiment Simulation: Utilizing Neural Networks to Optimize and Benchmark Process Parameter Development Strategies for Laser Polishing of Metals

Vincent Benedikt Ley, Sven Linden, Moritz Kuepper, Edgar Willenborg

Fraunhofer Institute for Laser Technology, Germany

Laser Polishing with Quasi-Beamforming for Enhanced Optical Quality for Miniaturized Optics

Lämmler Sven, Bischof David, Michler Markus

Fachhochschule Ostschweiz - Buchs, Switzerland

30 years of process monitoring and still enough welding faults to detect

Christoph Franz, Sören Hollatz

4D Photonics GmbH, Germany

High Power Amplified Industrial Optical Coherence Tomography (OCT) System for Deep Weld Keyhole Imaging

Emma R. Howard, Paul J. L. Webster

IPG Photonics Canada

Enhanced OCT signal interpretability in deep penetration laser welding of aluminium

Ronald David Pordzik¹, Eveline Reinheimer², Marcel Möbus¹, Thomas Seefeld^1,3

1: BIAS - Bemer Institut für angewandte Strahltechnik GmbH, Klagenfurter Straße 5, 28359 Bremen, Germany; 2: IFSW - Institut für Strahlwerkzeuge, Universität Stuttgart, Pfaffenwaldring 43, 70569 Stuttgart, Germany; 3: MAPEX Center for Materials and Processes, Universität Bremen, Bibliothekstraße 1, Bremen 28359, Germany

Current Advances in Data-driven Machine Learning for Temporal Strain Analysis in Laser Beam Welding Using High-speed Synchrotron X-ray Technique

Joseph Bophelo Morake, Andreas Herrmann, Leander Schmidt, Jean Pierre Bergmann

Technische Universität Ilmenau, Production Technology Group, Gustav-Kirchhoff-Platz 2, 98693 Ilmenau

In-situ and ex-situ synchrotron X-ray diffraction of the pulsed laser beam welding process considering different laser pulse shapes and laser spot arrangements

Andreas Herrmann¹, Marc Seibold¹, Klaus Schricker², Yunhui Chen⁴, Leander Schmidt¹, Hannes Friedmann¹, Christian Diegel¹, Fabian Fröhlich¹, Stefan Eichler¹, Alexander Rack³, Veijo Honkimäki³, Jean Pierre Bergmann¹

1: Technische Universität Ilmenau, Ilmenau, Germany; 2: Brandenburg University of Technology Cottbus-Senftenberg, Cottbus, Germany; 3: European Synchrotron Radiation Facility – The European Synchrotron, Grenoble, France; 4: RMIT University, Melbourne, Australia

Improving pyrometric temperature measurements for quality monitoring of laser processes

David Traunecker, Michael Jarwitz, Andreas Michalowski

University of Stuttgart, Institut fuer Strahlwerkzeuge (IFSW), Germany

Modeling and analysis of laser drying processes for wet-coated battery electrodes

Teng Chen¹, Orcun Atasever¹, Jan-Hendrik Koch¹, Florian Hüsing¹, Christian Brecher^1,2

1: Fraunhofer Institute for Production Technology IPT, Steinbachstraße 17, 52074 Aachen, Germany; 2: Laboratory for Machine Tools and Production Engineering WZL of the RWTH Aachen University, Campus-Boulevard 30, 52074 Aachen, Germany

Challenges and opportunities in using physics-informed neural networks for adaptive laser welding control

Sattar Ghasemi Goneyrani, Ahmad Reshad Bakhtari, Pasquale Franciosa

Warwick Manufacturing Group, The University of Warwick, Coventry CV4 7AL, United Kingdom

Enhancing Copper Laser Welding Through Multi-Physics Simulations of Optimized Beam Shapes

Avinash Kumar¹, Carlos Duran², Tobias Florian², Constantin Zenz², Adeline Orieux¹, Gwenn Pallier¹, Guillaume Labroille¹, Andreas Otto²

1: Cailabs, France; 2: Vienna University of Technology, Austria

Vapour flow optimization by means of coherent beam combining beam shaping strategies to reduce spatter formation in laser welding

Felix Zaiß¹, Philipp Jablonski¹, Christian Diegel², Jean Pierre Bergmann², Christian Hagenlocher¹, Thomas Graf¹

1: Institut für Strahlwerkzeuge (IFSW), University of Stuttgart, Germany; 2: Production Technology Group, Technische Universität Ilmenau, Germany

Heat and flow field optimization of beam shaping in application to liquid phase processing of aluminium-magnesium alloys.

Patrick O'Toole, Steffen Fritz, Christian Hagenlocher, Thomas Graf

IFSW University of Stuttgart, Germany

Method to determine the temperature dependent refractive index and extinction coefficient of liquid metals based on thermal emission.

Michael Sawannia¹, Julien Daligault², John Powell¹, Morgan Dal², Christian Hagenlocher¹, Thomas Graf¹

1: University of Stuttgart, Germany; 2: PIMM Laboratory, Arts et Métiers Institute of Technology (Paris)