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

Two-photon direct laser writing of microlenses for bronchoscopy

Logaheswari Muniraj¹, Pablo Roldán-Varona¹, Robert R. Thomson¹, Kevin Dhaliwal², Duncan P. Hand¹

1: Institute of Photonics and Quantum Sciences, Heriot-Watt University, Edinburgh, EH144AS, UK; 2: Billie Gifford Pandemic Science Hub, Institute of Regeneration and Repair, University of Edinburgh, Edinburgh, EH16 4UU, UK

Use of SLM for high throughput 3D microfabrication with high resolution

Francisco Gontad, Jaime Cuartero, Nerea Otero

AIMEN, Spain

Mode-locked Diode lasers for multi-photon polymerization

Nils Surkamp¹, Felix Behlau¹, Shulin Wholfeil², Andrea Knigge², Cemal Esen¹, Andreas Ostendorf¹, Martin Hofmann¹

1: Ruhr-Universität Bochum, Germany; 2: Ferdinand-Braun-Institut, Leibniz-Institut für Höchstfrequenztechnik, Berlin, Germany

Holographic Layer-by-Layer 3D Printing Using a Green Fiber Laser with Temporal and Spatial Pulse Shaping for High Precision and High Throughput

Maria Manousidaki¹, Savvas Papamakarios¹, Michalis Stavrou¹, Maria Farsari¹, Oleg Pronin², Kilian Fritsch², Tomin Joy², David Gray¹

1: Intitute of Electronic Structure and Laser, FORTH, Greece; 2: n2-Photonics GmbH, Germany

Transparent polycarbonate welding: Exploring the effects of scanning speed and fluence per pulse on weld seam quality

Soheil Alee Mazreshadi¹, Pol Vanwersch^1,2, Tim Evens², Sylvie Castagne¹

1: KU Leuven, Department of Mechanical Engineering and Flanders Make@KU Leuven-M&A, Celestijnenlaan 300, 3001 Leuven, Belgium; 2: KU Leuven, Department of Materials Engineering, Diepenbeek Campus, Wetenschapspark 27, 3590 Diepenbeek, Belgium

Femtosecond Laser and CO₂ Laser Processing for Fiber Lens Manufacturing

Robert Kuschmierz, Kinga Żołnacz, Jürgen Czarske

TU Dresden, Chair of Measurement and Sensor System Technique, Germany

Ultra-short pulse laser ablation of dielectrics: Bridging the "band" gap from free electron generation to hydrodynamic ablation

Michele Buttazzoni, Andreas Otto, Tobias Florian, Constantin Zenz

TU Wien, Austria

Critical Insights: Advanced Simulations Unveiling Ablation Mechanisms in USP Laser Processing

Tobias Florian¹, Michele Buttazzoni¹, Constantin Zenz¹, Robin Kloepfer², Andreas Otto¹

1: Institute of Production Engineering and Photonic Technologies, Tu Wien, Austria; 2: Institut für Strahlwerkzeuge (IFSW), University of Stuttgart, Germany

Incubation and laser drilling revisited

Daniel J. Förster¹, Tom Vettenburg², Heinz P. Huber¹

1: Hochschule München, Germany; 2: University of Dundee, United Kingdom

Numerical simulation of pulsed laser polishing of silicon wafers

Aref Azami, Wenkun Xie, Xichun Luo

Center for Precision Engineering, Department of Design, Manufacturing & Engineering Management, University of Strathclyde, Glasgow G1 1XQ, UK

Numerical simulations to find optimized beam-shapes and improve femto-second laser processes

Thibaut Atché, Dmitry Nuzhdin, Gwenn pallier, Guillaume Labroille

Cailabs, France

Realtime Measurement of the Ablation Rate during Ultrashort Pulsed Laser Processing

Markus Kogel-Hollacher¹, Simon Mieth¹, Jean-François Pichot²

1: Precitec Optronik GmbH, Germany; 2: Precitec France Sarl, France

Plenary Talk: Uncover process and defect dynamics during additive manufacturing with X-ray vision

Chu Lun Alex Leung^1,2

1: Department of Mechanical Engineering, University College London, London, UK; 2: Research Complex at Harwell, Rutherford Appleton Laboratory, Didcot, Oxfordshire UK

Plenary Talk: Innovative Beam Shaping Solutions for E-Mobility: from modelling to process control

Barbara Previtali

Politecnico di Milano, Department of Mechanical Engineering, SITEC - Laboratory for Laser Applications, Via Giuseppe La Masa 1, 20156 Milan, Italy

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

Invited Talk: Laser percussion drilling of additively manufactured titanium parts with ultrashort laser pulses

Daniel Holder^1,2, Nathan Gabriel¹, Christian Hagenlocher¹, Thomas Graf¹

1: Institut für Strahlwerkzeuge (IFSW), University of Stuttgart, Germany; 2: ARENA2036 Research Campus

Insights from High-Speed Synchrotron X-ray Imaging on the Ablation of Micro -Holes and -Grooves with Ultrafast Lasers

Manuel Henn¹, Lukas Schneller^1,2, Daniel Holder¹, Christoph Spurk³, Marc Hummel^3,4, Alexander Olowinsky⁴, Felix Beckmann⁵, Julian Moosmann⁵, Christian Hagenlocher¹, John Powell¹, Thomas Graf¹

1: University of Stuttgart, Institut für Strahlwerkzeuge IFSW, Pfaffenwaldring 43, 70569 Stuttgart, Germany; 2: Graduate School of advanced Manufacturing Engineering GSaME, Nobelstrasse 12, 70569 Stuttgart, Germany; 3: RWTH Aachen University, Chair for Laser Technology LLT, Steinbachstraße 15, 52074 Aachen, Germany; 4: Fraunhofer Institute for Laser Technology ILT, Steinbachstraße 15, 52074 Aachen, Germany; 5: Institute of Materials Physics, Helmholtz-Zentrum Hereon, Max-Planck-Str. 1, 21502 Geesthacht, Germany

Determining the individual structural strength of three-dimensional macrostructures as a function of ambient pressure

Christian Frey¹, Pia Wagner², Benjamin Gerhards³, Simon Olschok¹, Christian Hopmann², Uwe Reisgen¹

1: Welding and Joining Institute, RWTH Aachen University, Pontstrasse 49, 52062 Aachen, Germany; 2: Institute for Plastic Processing in Industry and Craft at RWTH Aachen University, Seffenter Weg 201, 52074 Aachen, Germany; 3: LaVa-X GmbH, Kaiserstraße 100, 52134 Herzogenrath, Germany

Influence of burr formation on the surface quality of sidewalls of microholes during laser ablation in metals

Robin Klöpfer, Daniel Holder, Chrisitan Hagenlocher, Thomas Graf

University of Stuttgart, Institut für Strahlwerkzeuge (IFSW)

Ultrashort pulsed laser robot system: Realisation of a concept for large area 3D micromachining

Yongting Yang¹, Daniel Franz¹, Cemal Esen², Ralf Hellmann¹

1: University of Applied Sciences Aschaffenburg, Germany; 2: Ruhr University Bochum, Germany

The effect of laser emission mode on the cutting of lithium metal as a solid-state battery anode

Pourya Heidari Orojloo¹, Pantaleone Barbieri², Daniela Fontana², Ali Gökhan Demir¹

1: Department of Mechanical Engineering, Politecnico di Milano, Via La Masa 1, 20156 Milan, Italy; 2: Comau S.p.A. – E-Mobility Global Competence Center, Via Rivalta 30, 10095 Grugliasco, Italy

From Macro to Micro: Multimode Fiber Lasers in Direct Laser Interference Patterning

Bogdan Voisiat¹, Wei Wang², Dominik Britz², Andrés Fabian Lasagni^1,3

1: Technische Universität Dresden, Germany; 2: SurFunction GmbH, Germany; 3: Fraunhofer Institute for Material and Beam Technology IWS, Germany

Lithium-ion battery foil cutting processes optimized with an infrared ultrashort pulse laser and megahertz pulse bursts

Jim Bovatsek, Terence Hollister

MKS Instruments, Inc. / Spectra-Physics, 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

Crack-free large-diameter glass welding with femtosecond laser and repetitive single pulses

Manon Lafargue^1,2, Théo Guilberteau^1,3, Bastien Gavory², John Lopez¹, Inka Manek-Hönninger¹

1: Université de Bordeaux - CELIA, France; 2: Amplitude, Pessac, France; 3: ALPhANOV, Talence, France

Overcoming the gap in glass welding using femtosecond laser's burst mode

Baptiste De Azevedo^1,2, Frédéric Antoni¹, Éric Audouard³, Armel Bahouka⁴, Sylvain Lecler^1,2

1: ICube, Université de Strasbourg - CNRS, Illkirch-Graffenstaden, France; 2: INSA-Strasbourg, Strasbourg, France; 3: Amplitude, Pessac, France; 4: IREPA LASER, Illkirch-Graffenstaden, France

Ultrashort Pulse Laser Welding of Optics with Increased Throughput.

Adrian Dzipalski, Richard M. Carter, M.J. Daniel Esser, Duncan P. Hand

Heriot Watt University, United Kingdom

Direct welding of metals and glass substrates using GHz-burst femtosecond laser pulses

Manon Lafargue^1,2, Théo Guilberteau^1,3, Bastien Gavory², Inka Manek-Hönninger¹, John Lopez¹

1: Université de Bordeaux - CELIA, France; 2: Amplitude, Pessac, France; 3: ALPhANOV, Talence, France

Micro-welding of thin stainless steel foils using an ultra-short pulsed laser

Samuel Weber^1,2, Mareike Schäfer^1,2, Ellen Bold³, Sebastian Zimmermann⁴, Clarissa Schönecker⁴, Egbert Oesterschulze³, Johannes L’huillier^1,2

1: Institute for Surface and Thin Film Technology (IFOS), Kaiserslautern, Germany; 2: Research Center OPTIMAS, RPTU Kaiserslautern-Landau, Kaiserslautern, Germany; 3: Department of Physics, Rheinland-Pfälzische Technische Universität Kaiserslautern-Landau (RPTU), Kaiserslautern, Germany; 4: Department of Mechanical and Process Engineering, Rheinland-Pfälzische Technische Universität Kaiserslautern-Landau (RPTU), Kaiserslautern, Germany

A Standard Metal Preparation for Ultrashort Pulse Laser Metal-Optical Component Bonding

Adrian Dzipalski, Richard M. Carter, M.J. Daniel Esser, Duncan P. Hand

Heriot Watt University, United Kingdom

Impact of Polarization Angle on Ablation Efficiency and Structure Formation in DLIP Processing

Francisco Udo Marins Almeida¹, Bogdan Voisiat¹, Fabian René Ränke¹, Andrés Fabián Lasagni^1,2

1: Technische Universität Dresden, Dresden, Germany; 2: Fraunhofer Institute for Material and Beam Technology, Dresden, Germany

FFT-Based Device for Characterization of Laser-textured Periodic Surface Topographies

Bogdan Voisiat¹, Agustin Esteban Götte¹, Marcelo Daniel Sallese¹, Marcos Soldera¹, Andrés Fabian Lasagni^1,2

1: Technische Universität Dresden, Germany; 2: Fraunhofer Institute for Material and Beam Technology IWS, Germany

Surface functionalization using a high-power ultrashort pulse laser and advanced beam shaping: control of wettability and optical properties

Tamara Delgado, Francisco Gontad, Nerea Otero, Pablo Romero

AIMEN, Spain

Innovative integrated system for bio-inspired laser functionalisation of complex 3D industrial parts with two different laser technologies

Mikel Gomez-Aranzadi^1,2, Luis Omeñaca^1,2, Enrique Castaño^1,2, Gemma García Mandayo^1,2, Ainara Rodriguez^1,2, Santiago Miguel Olaizola^1,2

1: CEIT-Basque Research and Technology Alliance (BRTA), Manuel Lardizabal 15, 20018 Donostia / San Sebastián, Spain; 2: Universidad de Navarra, Tecnun, Manuel Lardizabal 13, 20018 Donostia / San Sebastián, Spain

Optimizing Ultrafast Laser Surface Texturing of Polypropylene for Precise Wettability Control

Julen Molinuevo¹, Eva Rodriguez-Vidal¹, Miguel Morales², Carlos Molpeceres²

1: Tekniker, Basque Research and Technology Alliance (BRTA), C/Iñaki Goenaga 5, 20600 Eibar, Spain; 2: Centro Láser, Universidad Politécnica de Madrid, Alan Turing 1, 28031 Madrid, Spain

Tailoring Polymer Surface Properties via Femtosecond Laser Irradiation: IR vs. UV Effects

Diego Gallego, Jorge Fantova, Gemma Garcia, Isabel Ayerdi, Santiago Miguel Olaizola, Ainara Rodriguez

Asociación Centro Tecnológico Ceit, Spain

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

Ultraviolet Femtosecond Laser Precision Micromachining of Complex Quartz Structures

Vishnu Prakash Karunakaran^1,3, Sandra Stroj¹, Fadi Dohnal¹, Christian Schimpf², Dorian Gangloff², Armando Rastelli³

1: Research Center for Microtechnology, FHV - Vorarlberg University of Applied Sciences, Hochschulstraße 1, 6850 Dornbirn, Austria; 2: Cavendish Laboratory, University of Cambridge, J.J. Thomson Avenue, Cambridge, CB3 0HE, UK; 3: Institute of Semiconductor and Solid State Physics, Johannes Kepler University, Altenbergerstraße 69, 4040 Linz, Austria

High shear strength ultra short pulse bonds across various glass metal interfaces

Lukas Günther^1,2, Jens Ulrich Thomas¹, Dominique de Ligny²

1: SCHOTT AG, Germany; 2: Friedrich-Alexander-Universitat Erlangen-Nurnberg

Glass Percussion Drilling with GHz-Burst Femtosecond Lasers at 515 nm and Arbitrary Burst Shapes

Alessandro Greborio¹, Riccardo Conzatti¹, Roberta Ruffilli¹, Antonio Ancona², Martina Pagani¹

1: Lithium Lasers, Via Zeni 8, 38068 Rovereto, Italy; 2: Istituto di Fotonica e Nanotecnologie (IFN)-CNR U.O.S. Bari, via Amendola 173, 70126 Bari, Italy

Advancing femtosecond laser percussion drilling for high-aspect-ratio holes in glass and silicon carbide using repetitive single-pulses

Bogusz Stepak, Rafał Smolin, Natalia Grudzień, Yuriy Stepanenko, Michał Nejbauer

Fluence Sp. z o.o., Kolejowa 5/7, 01-217 Warsaw, Poland

Towards optimized 2.5D ultra-short pulsed laser ablation of fused silica to enhance quality of laser structured complex optics

Dominik Mücke¹, Cemal Esen², Ralf Hellmann¹

1: TH Aschaffenburg, Germany; 2: Ruhr-Universität Bochum, Germany

Formation of Mid-Spatial Frequency Errors in Laser Polishing of Fused Silica

Manuel Jung, Edgar Willenborg

Fraunhofer Institut for Laser Technology ILT, Germany

Invited Talk: A holistic computational design within additive manufacturing processes: linking multiphysics and multiscale simulations with topology optimization

Mohamad Bayat

Department of Civil and Mechanical Engineering, Technical University of Denmark – DTU, Produktionstorvet 425, Kgs. Lyngby 2800, Denmark

Effect of Dynamic Beam Shaping in Laser Metal Deposition

Philipp Hildinger¹, Annika Bohlen¹, Thomas Seefeld^1,2

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

The effect of spot size on layer formation efficiency in pure copper coating using multi-beam laser metal deposition with blue diode lasers

Tamaki Yoshida¹, Yuji Sato², Keisuke Takenaka², Peng Chen³, Takayuki Mokudai^2,4, Yorihiro Yamashita⁵, Masahiro Tsukamoto²

1: Graduate School of Engineering, Osaka University; 2: Joining and Welding Research Institute, Osaka University; 3: Graduate School of Dentistry, Tohoku University; 4: Institute for Materials Research, Tohoku University; 5: Faculty of Engineering, University of Fukui

High power laser beam shaping with a deformable mirror for process control in welding and directed energy deposition

Fredrik Sikström¹, Yongcui Mi¹, Stefano Bonora², Antonio Ancona^1,2,3

1: University West, Sweden; 2: CNR-Institute for Photonics and Nanotechnology; 3: Physics Department, University of Bari "Aldo Moro"

Real-Time Process Monitoring of 3D-EHLA Using Optical Coherence Tomography (OCT)

Simone Maffia¹, Christoph Krull^1,2,3, Helena Wexel², Stephan Koß³, Johannes Henrich Schleifenbaum³, Frederik Zanger², Tobias Stittgen¹

1: Ponticon GmbH, Germany; 2: Institute of Production Science, Karlsruhe Institute of Technology, Germany; 3: Chair for Digital Additive Production, RWTH Aachen University, 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

Laser processes: powerful tools for targets fabrication

Isabelle Geoffray, Rémy Bourdenet

CEA, France

High-entropy alloy Nanoparticles for Green Hydrogen Production, Created by Pulsed Laser Ablation in Liquid Flow

Robert Stuckert¹, Felix Pohl², Oleg Prymak¹, Christoph Rehbock¹, Ulrich Schürmann², Lorenz Kienle², Stephan Barcikowski¹

1: University of Duisburg-Essen, Germany; 2: Kiel University, Germany

Laser Stripping of Diffused Aluminide Coating Used for the Protection of Gas Turbine Parts

Mohamed Ahmed¹, Sarah Higgins^1,2, Tom Hanratty², Dale Harris², Amin Abdolvand¹, Svetlana Zolotovskaya¹

1: University of Dundee, School of Science and Engineering, Nethergate, Dundee DD1 4HN, United Kingdom; 2: ATL Turbine Services, Baldovie Industrial Estate, Dundee DD4 0NT, United Kingdom

Miniaturised PMN-PT piezo actuators realised by UV-fs-laser processing for strain-tuning of entangled light sources

Sandra Stroj¹, Menotti Markovic¹, Lucia Oberndorfer¹, Vishnu Prakash Karunakaran¹, Fadi Dohnal¹, Dorian Gangloff², Christian Schimpf², Peter Michler³, Rinaldo Trotta⁴, Javier Martín-Sánchez⁵, Armando Rastelli⁶

1: Research Center for Microtechnology, FH Vorarlberg, Hochschulstraße 1, A-6850 Dornbirn, Austria; 2: Cavendish Laboratory, University of Cambridge, J.J. Thomson Avenue, Cambridge, CB3 0HE, UK; 3: Institute of Semiconductor Optics and Functional Interfaces, University of Stuttgart, Stuttgart, Germany; 4: Department of Physics, Sapienza University of Rome, Piazzale A. Moro 5, 00185 Rome, Italy; 5: Department of Physics, University of Oviedo, C/ Federico García Lorca nº 18, 33007, Oviedo, Spain; 6: Institute of Semiconductor and Solid State Physics, Johannes Kepler University, Altenbergerstraße 69, A-4040 Linz, Austria

Ultrafast Laser Processing of Copper and Silicon at High-Repetition Rates up to 15 GHz

Valeria Viviana Belloni¹, Maxime Pinaud¹, Hugo Delahaye¹, Luca Furfaro¹, Lilia Pontagnier², Giorgio Santarelli², Eric Cormier², Luc Froehly¹, Francois Courvoisier¹

1: Université Marie et Louis Pasteur, CNRS, institut FEMTO-ST, F-25000 Besançon, France; 2: Laboratoire Photonique Numérique et Nanosciences (LP2N), UMR 5298, CNRS-IOGS-Université Bordeaux, 33400 Talence, France

The Impact of Dynamic Burst Mode and Intraburst Separation Time on Volume Removal and Surface Quality in Laser Ablation of Stainless Steels Using Ultrashort Pulsed Lasers

Dirk Obergfell^1,2, Bahman Azarhoushang¹, Andrés Fabián Lasagni^2,3

1: Hochschule Furtwangen, Germany; 2: Technische Universität Dresden, Germany; 3: Fraunhofer IWS, Germany

Experimental Investigation of Shielding and Carrier Gases in Laser Material Deposition: Impact on Microstructure, Hardness, and Cost Efficiency

Eduard Weisser, Philipp Kiefer, Rebar Hama-Saleh, Viktor Glushych

Fraunhofer Institute for Laser Technology ILT, Germany

Water and gas atomized AISI 316L for DED-LB: A comparative study on powder properties and build quality

Josefine Lemke¹, Max Biegler¹, Michael Rethmeier^2,1,3

1: Fraunhofer Institute for Production Systems and Design Technology IPK, Pascalstrasse 8-9, 10587 Berlin, Germany; 2: Institute for Machine Tools and Factory Management (IWF), Technical University of Berlin, Strasse des 17. Juni, 10623 Berlin, Germany; 3: Bundesanstalt für Materialforschung und -prüfung (BAM), Unter den Eichen 87, 12205 Berlin, Germany

Effects of Powder Channel Surface Roughness on Particle Velocity and Dispersion for Laser Metal Deposition

Annika Bohlen¹, Thomas Seefeld^1,2

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

Influence of TiC-nanoparticles in Laser Metal Deposition of EN AW-7075

Finn Bendixen¹, 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

Laser precleaning for Graphite Removal in EHLA of Brake Disks with 430L

Piera Álvarez¹, María Azpeleta¹, M Ángeles Montealegre¹, Oscar Frías¹, Andoni Mendialdua²

1: Ikergune AIE, Spain; 2: Etxetar SA, Spain

Enabling Additive Manufacturing Applications for Structural Engineering with DED-LB of High-Strength Steels

Akshay Ashok Benni¹, Pietro Antonio Martelli², Vasile Luchin³, Ilchat Sabirov², Andrea Crosato¹, Alper Kanyilmaz⁴, Ali Gokhan Demir⁴, Barbara Previtali⁴

1: BLM S.P.A., Via Selvaregina, 30, 22063 Cantù (CO), Italy; 2: IMDEA Materials Institute, Getafe, 28906, Madrid, Spain; 3: Mimete S.r.l., Via Padania 10, 20853 Biassono (MB), Italy; 4: Politecnico di Milano, Via La Masa 1, 20156 Milano (MI), Italy

Laser-Induced Forward Transfer for 3D cell bioprinting: Controlled Immobilization in Extracellular Matrices

Stavroula Evina Elezoglou¹, Antonis Hatziapostolou¹, Kyriakos Giannakopoulos¹, Ioanna Zergioti^1,2

1: National Technical University of Athens, School of Applied Mathematical and Physical Sciences, Iroon Polytehneiou, Athens, Greece; 2: PhosPrint P.C., Lefkippos Technology Park, Athens, Greece

Unlocking Extreme Parallelization: 1 kW Ultrafast Laser Processing with Compensation of Spatio-Temporal Effects for Large Angle Beam Splitting

Dario Mekle^1,2, Daniel Grossmann³, Benjamin Dannecker³, Helge Höck³, Dominik Bauer³, Daniel Flamm¹, Stefan Nolte^2,4

1: TRUMPF Laser- und Systemtechnik SE, Ditzingen, Germany; 2: Institute of Applied Physics, Abbe Center of Photonics, Friedrich Schiller University Jena, Germany; 3: TRUMPF Laser SE, Schramberg, Germany; 4: Fraunhofer Institute for Applied Optics and Precision Engineering, Jena, Germany

Effect of laser-induced periodic structures on the resistance of aluminium current collectors in supercapacitors

Oleksandr Kuznetsov^1,2, Vanessa Barvinska², Fedir Ivashchyshyn^1,3, Andriy Lotnyk⁴, Ihor Hrytsai¹, Iaroslav Gnilitskyi^1,2

1: Lviv Polytechnic National University, Ukraine; 2: "NoviNano Lab" LLC, Lviv, Ukraine; 3: Czestochowa University of Technology, Czestochowa, Ukraine; 4: Leibniz Institute of Surface Engineering, Leipzig, Germany

Connecting pump–probe microscopy with final-state measurements in ultrafast laser ablation of disordered alloys

David Redka^1,2, Maximilian Spellauge^1,3, Ján Minár^1,2, Heinz Paul Huber^1,2

1: Department of Applied Sciences and Mechatronics, Munich University of Applied Sciences HM, Munich, Germany; 2: New Technologies-Research Centre, University of West Bohemia, Pilsen, Czech Republic; 3: Technical Chemistry I and Center for Nanointegration Duisburg-Essen (CENIDE), University of Duisburg-Essen, Essen, Germany

One-shot imaging of laser-induced surface acoustic waves on silicon and metal films using pump-probe microscopy

Matthias Domke, Felix Wäger, David Schönebeck, Fadi Dohnal

Research Center for Microtechnology, Vorarlberg University of Applied Sciences, Hochschulstr. 1, 6850 Dornbirn, Austria

Fundamental origin of low laser ablation in liquid productivity and how to increase it

Maximilian Spellauge^1,2, David Redka^1,3, Bilal Gökce⁴, Stephan Barcikowski², Heinz P. Huber^1,3

1: Department of Applied Sciences and Mechatronics, Munich University of Applied Sciences HM, 80335 Munich, Germany; 2: Technical Chemistry I and Center for Nanointegration Duisburg-Essen (CENIDE), University of Duisburg-Essen, 45141 Essen, Germany; 3: New Technologies Research Center, University of West Bohemia, Plzen CZ-30100; Czech Republic; 4: Chair of Materials Science and Additive Manufacturing, School of Mechanical Engineering and Safety Engineering, University of Wuppertal, 42119 Wuppertal, 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

Comparison of different femtosecond laser drilling technologies for through glass via (TGV) fabrication in customised glass interposers

Dimitris Karnakis, Mostafa Hassan

Oxford Lasers Ltd, United Kingdom

Formation of through-glass vias (TGVs) in glass substrates using femtosecond laser operating in MHz GHz burst mode

Deividas Andriukaitis¹, Evaldas Kažukauskas², Aleksandras Kondratas³, Juozas Dudutis³

1: Ekspla, Savanoriu ave. 237, Vilnius, Lithuania; 2: Laser Research Center, Vilnius University, Sauletekio ave. 10, Vilnius, Lithuania; 3: Center for Physical Sciences and Technology, Savanoriu ave. 231, Vilnius, Lithuania

Drilling of Through-Glass Vias (TGVs) with Femtosond GHz Burst Mode and Selective Laser Etching

Simas Butkus^1,2, Kamilė Kasačiūnaitė¹, Mykolas Karpavičius¹, Domas Baliukonis¹

1: Light Conversion, Lithuania; 2: Vilnius University, Laser Research Center

258nm UV ultrafast laser microprocessing of fused-silica

Jan Novotný, Libor Mrna

Institute of Scientific Instruments of the CAS, v. v. i., Czech Republic

Ultrafast Laser Bessel Beam Interaction with Fused Silica in Single Pulse, MHz-Burst, and GHz-Burst

Théo Guilberteau^1,2, Pierre Balage¹, Manon Lafargue^1,3, John Lopez¹, Laura Gemini², Inka Manek-Hönninger¹

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

Laser-based form correction of fused silica optics

Emrah Uluz

Fraunhofer-Institut for Laser Technology, Germany

Near infrared laser-based powder bed fusion of thermoplastic polyurethane utilising copper monosulfide nanoparticles as absorber

Simon Leupold^1,2, Michael Willeke³, Cheechau Leong^1,2, Nadine Stratmann³, Alexander Sommereyns^1,2, Anna Rosa Ziefuß³, Sebastian-Paul Kopp^1,2,4, Stephan Barcikowski³, Michael Schmidt^1,2,4

1: Institute of Photonic Technologies (LPT), Friedrich-Alexander-Universität Erlangen-Nürnberg, Konrad-Zuse-Str. 3-5, 91052 Erlangen, Germany; 2: Erlangen Graduate School in Advanced Optical Technologies (SAOT), Paul Gordan Straße 6, 91052 Erlangen, Germany; 3: Technical Chemistry I and Center for Nanointegration Duisburg-Essen (CENIDE), University of Duisburg-Essen, Universitaetsstrasse 7, 45141 Essen, Germany; 4: Bayerisches Laserzentrum GmbH (BLZ), Konrad-Zuse-Straße 2-6, 91052 Erlangen, Germany

Impact of Sensitizer Distribution on Polymer Processing in Diode Laser Powder Bed Fusion

Anna Rosa Ziefuss¹, Michael Willeke¹, Nadine Stratmann¹, Simon Leupold^2,3, Michael Schmidt^2,3, Stephan Barcikowski¹

1: Technical Chemistry I and Center for Nanointegration Duisburg-Essen (CENIDE), University of Duisburg-Essen, 45141 Essen, Germany; 2: Institute of Photonic Technologies, Friedrich-Alexander-University of Erlangen-Nürnberg, Konrad-Zuse-Straße 3/5, 91052 Erlangen, Germany; 3: Erlangen Graduate School in Advanced Optical Technologies (SAOT), Friedrich-Alexander-Universität Erlangen-Nürnberg, Paul-Gordan-Straße 6, 91052 Erlangen, Germany

Influence of particle size distribution and drying states on laser beam melting of lunar regolith simulants

Tim Eismann¹, Tjorben Griemsmann¹, Mathias Ernst¹, Jan Düsing¹, Matthias Springer¹, Piet Dyroey¹, Roland Kalms¹, Michael Müller¹, Peter Wessels¹, Jörg Neumann¹, Nick Schwarz¹, Benedict Grefen², Stefan Linke², Enrico Stoll², Dietmar Kracht¹, Stefan Kaierle^1,3

1: Laser Zentrum Hannover e.V., Hollerithallee 8, 30419 Hannover, Germany; 2: Technische Universität Berlin, Marchstraße 12 - 14, 10587 Berlin, Germany; 3: Institut für Transport- und Automatisierungstechnik, Leibniz Universität Hannover, An der Universität 2, 30823 Garbsen, Germany

Laser-Based Powder Bed Fusion and Plasma Electrolytic Surface Modification of Complex Magnesium WE43 Structures – Process Boundaries, Microstructure and Corrosion Behavior

Arvid Abel¹, Anutsek Sharma², Till Biermann¹, Michael Müller¹, Gözde Baylan², Nick Schwarz¹, Anna Buling², Jörg Zerrer², Stefan Kaierle¹

1: Laser Zentrum Hannover e.V., Germany; 2: Eloxalwerk Ludwigsburg GmbH

Microstructural fracture behaviour of PBF-LB/M Inconel 718 components within different HIP-processes

David Sommer¹, Ben Truetsch¹, Cemal Esen², Ralf Hellmann¹

1: University of Applied Sciences Aschaffenburg, Germany; 2: Ruhr University Bochum, Germany

Influence of in-situ high-speed milling within a hybrid additive manufacturing approach on the fatigue behaviour of IN718 lattice structures

David Sommer¹, Maximilian Peters¹, Cemal Esen², Ralf Hellmann¹

1: University of Applied Sciences Aschaffenburg, Germany; 2: Ruhr University Bochum, 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)

GHz femtosecond bust laser for high-quality and efficient deep engraving

Roberta Ruffilli¹, Riccardo Conzatti¹, Martina Pagani¹, Caterina Gaudiuso², Antonio Ancona², Alessandro Greborio¹

1: Lithium Lasers, Via Zeni 8, 38068 Rovereto, Italy; 2: Istituto di Fotonica e Nanotecnologie (IFN)-CNR U.O.S. Bari, via Amendola 173, 70126 Bari, Italy

Multi-laser process machining of highly efficient polycrystalline diamond micro-drills

{Dr.} Paul Butler-Smith¹, {Dr} Mitchell Leering¹, {Dr} Ben Mason¹, {Mr} George Slater¹, {Mr} Raphael Ragueneau², {Dr} Sundar Marimuthu¹

1: The Manufacturing Technology Centre, United Kingdom; 2: Diamoutils, France

Femtosecond laser drilling of plastic capsules for targets fabrication

Remy Bourdenet, Isabelle Geoffray

CEA, DAM, centre de Valduc, 21120 Is Sur Tille, France

Femtosecond Laser Processing for Cutting Tool Optimization: Edge Structuring and Surface Texturing for Improved Performance

Aldara Pan Cabo^1,2, Lorena Lozada Cabezas^1,2, Tomás Soria Biurrun^1,2, Iñigo Ramón Conde^1,2, Enrique Castaño Carmona^1,2, Jose Manuel Sánchez Moreno^1,2, Santiago Miguel Olaizola Izquierdo^1,2

1: CEIT-Basque Research and Technology Alliance (BRTA), Manuel Lardizabal 15, 20018 Donostia / San Sebastián, Spain.; 2: Universidad de Navarra, Tecnun, Manuel Lardizabal 13, 20018 Donostia / San Sebastián, Spain.

Invited Talk: Polymer nano functionalization for laser powder bed fusion: Minimizing additive incorporation to manufacture bactericidal and magnetic parts

Jan Lino Kricke¹, Sebastian-Paul Kopp^2,3,4, Bilal Gökce¹, Carlos Doñate Buendía⁵

1: Materials Science and Additive Manufacturing, School of Mechanical Engineering and Safety Engineering, University of Wuppertal, Germany; 2: Institute of Photonic Technologies (LPT), Friedrich-Alexander-Universität Erlangen-Nürnberg, Erlangen, Germany; 3: Bayerisches Laserzentrum GmbH, 91052 Erlangen, Germany; 4: Erlangen Graduate School in Advanced Optical Technologies (SAOT), 91052 Erlangen, Germany; 5: GROC-UJI, Institute of New Imaging Technologies, Universitat Jaume I, Av. De Vicent Sos Baynat s/n, Castellón, 12071 Spain

Laser metal powder bed fusion of pure copper with green and infrared wavelength for power electronics applications

Isabelle Günther¹, Thomas Niendorf², Benjamin Zillmann¹

1: Robert Bosch GmbH, Robert-Bosch-Campus 1, 71272 Renningen, Germany; 2: Institute of Materials Engineering, University of Kassel, Mönchebergstr. 3, 34125 Kassel, Germany

Process parameter development and optimization for the Scalmalloy® alloy in the additive manufacturing of aircraft applications

Jens Niedermeyer, Timo Witte, Jan Philipp Wahl, Fabian Schlenker, Myriam Maalaoui, Marcus Oel, Ina Meyer, Roland Lachmayer

Leibniz University Hannover, Germany

In-situ high speed optical and thermal imaging of metal powder particles during melting and solidification

Hagen Peter Kohl¹, Eric Schadow², Lisa Matthäus¹, Stefan Nolte^1,2

1: Friedrich-Schiller-Universität Jena, Faculty of Physics and Astronomy, Institute of Applied Physics, Abbe Center of Photonics, Albert-Einstein-Str. 15, 07745 Jena, Germany; 2: Fraunhofer Institute for Applied Optics and Precision Engineering IOF, Albert-Einstein-Str. 7, 07745 Jena, Germany

Measurement of real temperatures in metal powder bed fusion: hyperspectral thermography

Simon J. Altenburg, Philipp P. Breese

Bundesanstalt für Materialforschung und -prüfung, Germany

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.

AI-driven optimization of femtosecond laser micromachining parameters

Céline Petit¹, David Bruneel¹, Nathanaël Mariaule², Sven Wauters², Arnaud De Decker²

1: LASEA BE, Belgium; 2: SAGACIFY, Belgium

Parameter optimization for femtosecond laser cutting of various polymers

Arnas Vyšniauskas^1,2, Laimis Zubauskas¹, Evaldas Kažukauskas^2,3, Valdemar Stankevič^1,2, Paulius Gečys¹

1: Center for physical sciences and technology (FTMC), Savanoriu Ave. 231, LT-02300, Vilnius, Lithuania.; 2: Akoneer, Ltd, Mokslininku 6B, LT-08412, Vilnius, Lithuania.; 3: Laser Research Center, Faculty of Physics, Vilnius University, Sauletekio Ave. 10, LT-10223 Vilnius, Lithuania.

Experimental and modeling of thermal ablation effects on polymers at MHz femtosecond laser irradiation

Andrés Pérez Bernabeu¹, Daniel Puerto^1,2, José Reyna¹, Sergi Gallego^1,2, Andrés Márquez^1,2, Inmaculada Pascual^1,3, Augusto Beléndez^1,2

1: Dept. Física, Ingeniería de Sistemas y Teoría de la Señal, Universidad de Alicante, Spain; 2: I. U. Física Aplicada a las Ciencias y las Tecnologías, Universidad de Alicante, Spain; 3: Dept. Óptica, Farmacología y Anatomía, Universidad de Alicante, Spain

Sensor-Based On-the-Fly Laser Processing

Georg Hoppe¹, Jale Schneider¹, Eduardo Alvarez¹, Jan Nekarda¹, Ralf Preu¹, Moritz Diehl², Fabian Meyer¹

1: Fraunhofer ISE; 2: IMTEK, Universität Freiburg

Innovative applications of acoustic monitoring in ultra-short pulse laser microprocessing

Joaquín Rivera-Sahún¹, Alejandro Frechilla¹, Can Özcelik¹, Elena Martínez¹, José R. Beltrán², Germán F. de la Fuente¹, M. Pilar Alonso³, Jonathan Fin⁴, Rémy Chapoulie⁴, Luis A Angurel¹

1: Instituto de Nanociencia y Materiales de Aragón (INMA), CSIC-University of Zaragoza, Zaragoza, Spain; 2: Instituto de Investigación en Ingeniería de Aragón (I3A), University of Zaragoza, Zaragoza, Spain; 3: Área de Historia del Arte, Departamento de Historia, Geografía y Comunicación, Unidad Asociada de I+D+i al CSIC “VIMPAC”, University of Burgos, Burgos, Spain; 4: Archéosciences Bordeaux UMR 6034, CNRS, University Bordeaux Montaigne, France

Study of Tangential Laser Micromachining Using Ultra-Short Pulses for Roughing Operations with Adaptive Path Control

Adam Cermak, Martin Novak, Pavel Zeman

Department of Production Machines and Equipment (RCMT), Faculty of Mechanical Engineering, Czech Technical University in Prague, Technicka Street 4, 16000, Prague 6, Czech Republic

The Role of Ring Beam Shaping in Laser Powder Bed Fusion of Ti-6Al-4V components

Marida Pontrandolfi^1,2, Linda Squillaci^3,4, Jonas Olsson³, Giovanni Pappalettera⁵, Caterina Casavola⁵, Robert Pederson³, Antonio Ancona^1,2,3

1: Intercollegiate Department of Physics “M. Merlin”, University of Bari and Polytechnic University of Bari, Italy; 2: National Research Council (CNR), Institute for Photonics and Nanotechnologies (IFN), Bari, Italy; 3: Department of Engineering Science, University West, Trollhättan, 461 86, Sweden; 4: GKN Aerospace Sweden, SE-461 38, Trollhättan, Sweden; 5: Department of Mechanics, Mathematics and Management, Polytechnic University of Bari, Italy

Enhancing Build Rate in Laser Powder Bed Fusion with Optimized Laser Intensity Distribution

Mahmoud Ziat, Sacha Grelet, Adeline Orieux, Gwenn Pallier, Guillaume Labroille

Cailabs, France

Production of soft magnetic FeSi6.5 components using laser beam shaping at PBF-LB/M to avoid cracks without additional heating

David Kolb¹, Robin Wenger¹, Christian Schröter², Alex Kingsbury³, Harald Riegel¹

1: LaserApplicationCenter (LAZ), Aalen University, Beethovenstraße 1, 73430 Aalen, Germany; 2: Optoprim Germany GmbH, Einsteinstraße 12, 85716 Unterschleißheim, Germany; 3: nLIGHT, Inc., 4637 NW 18th Ave, 98607 Camas WA, United States of America

Laser powder bed fusion of rare-earth-based permanent magnets: Enhance Density and Coercivity

Nadine Stratmann¹, Philipp Gabriel¹, Priyatosh Sahoo², Anna Rosa Ziefuss¹, Konstantin Skokov², Oliver Gutfleisch², Stephan Barcikowski¹

1: Technical Chemistry I; University of Duisburg-Essen; Germany; 2: Functional Materials, Institute of Material Science; Technical University of Darmstadt; Germany

3D-Printed Metamaterial Structures for Electromagnetically Induced Transparency at THz Frequencies

Savvas Papamakarios¹, Odysseas Tsilipakos², Ioannis Katsantonis¹, Anastasios Koulouklidis¹, Maria Manousidaki¹, Gordon Zyla¹, Christina Daskalaki¹, Stelios Tzortzakis¹, Maria Kafesaki¹, Maria Farsari¹

1: FORTH/IESL, N. Plastira 100, 70013, Heraklion,Greece; 2: Theoretical and Physical Chemistry Institute, National Hellenic Research Foundation, GR-11635 Athens, Greece

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

Mode-cleaning, a passive stabilization of femto-second laser beams to enhance micro-processing

Dmitry Nuzhdin, Mahmoud Ziat, Gwenn Pallier, Guillaume Labroille

Cailabs, France

Higher efficiency of femtosecond laser processing using spatial beam engineering

Eric AUDOUARD¹, Marie FLEUREAU¹, Benoit MORIN¹, Amina ARAHOUNI², Jean Michel ROMANO², Frédéric MERMET²

1: Amplitude, France; 2: IREPA laser, Illkirch, FRANCE

Efficiency loss in ultrafast laser ablation due to spatial light modulator limitations in beam shaping

Bahia Najih^2,3, Martin Delaigue², Florent Bourquard³, Cyril Mauclair¹

1: Univ Angers, LPHIA, SFR MATRIX, F-49000 Angers, France; 2: Amplitude, Pessac, France; 3: Laboratoire Hubert Curien, UMR 5516 CNRS, Université Jean Monnet, Saint-Étienne, France

Hollow-core Fiber Beam Delivery of High-Power Ultrashort Pulses for Laser Micromachining

Paul Froemel, Sebastian Eilzer, Andreas Rudolf

PT Photonic Tools GmbH, Germany

Optimizing Dynamic Performance of Galvanometric Scanners through Advanced Trajectory Planning for Laser Material Processing

Pawel Garkusha, Michael F. Zaeh

Technical University of Munich, Germany

Integration of Galvanometer Scanners in ROS for Path Planning in Robot-Based Laser Material Processing

Jan-Niklas Schneider, Leon Gorissen, Thomas Kaster, Christian Hinke

Chair for Laser Technology - RWTH Aachen University, Germany

Improving Remanufacturing with Cobots: Sensor-Enhanced Path Planning for Automated Laser Cleaning

Thomas Kaster, Jan-Niklas Schneider, Leon Gorissen, Christian Hinke

Chair for Laser Technology - RWTH Aachen University, Germany

Automation of High-Power USPL Technology using In-situ Monitoring and Hollow-core Fiber Coupling

Adam Hicks¹, Jared Speltz²

1: US Air Force Research Laboratory, United States of America; 2: University of Dayton Research Institute

Beam shaping, process monitoring and AI - a perfect combination for robust and safe laser beam welding

Markus Kogel-Hollacher^1,2, Thomas Nicolay¹, Joachim Schwarz³, Gwenn Pallier⁴

1: Precitec Optronik GmbH; 2: Precitec GmbH & Co,KG; 3: Precitec Vision GmbH & Co. KG; 4: CAILABS

Systematic Characterization of Ring-Shaped Laser Beams

Johannes Rossnagel, Stefan Wolf, Reinhard Kramer, Ruben Hartwig, Nicholas Harrop

PRIMES GmbH, Germany

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)

Pump–Probe Imaging of GHz Surface Waves for Young’s Modulus Measurement

Ramon Auer¹, Ruben Burger^1,2, Goran Hallum¹, Dennis Schweiger¹, David Redka¹, Matthias Domke³, Datong Wu¹, Heinz Huber¹

1: University of applied science Munich, Germany; 2: Technical University of Munich, Germany; 3: Vorarlberg University of Applied Sciences, Austria

The role of material specific nanomorphology for formation of laser-induced-periodic-surface-structures

Nicolas Thorsten Thomae¹, David Sebastian Redka^1,2, Darshit Jangid³, Maximilian Spellauge¹, Constanze Eulenkamp¹, Christian Schwalb³, Ján Minár², Heinz Paul Huber¹

1: Munich University of Applied Sciences HM, Munich DE-80335, Germany; 2: New Technologies Research Center, University of West Bohemia, Plzen CZ-30100, Czech Republic; 3: Quantum Design Microscopy GmbH, Pfungstadt DE-64319, Germany

Time-Resolved Digital Holography for Understanding Surface Roughness Evolution in Laser Deep Engraving

Simas Butkus, Balys Momgaudis, Evaldas Kažukauskas

Vilnius University, Laser Research Center, Lithuania

Challenges in ultrashort pulse laser ablation: efficiency limits, ripple formation and incubation

Maximilian Spellauge^1,2, David Sebastian Redka^1,3, Nicolas Thomae¹, Ramon Auer¹, Julian Vollmann¹, Carlos Doñate-Buendia⁵, Bilal Gökce⁴, Stephan Barcikowski², Daniel Förster¹, Heinz Paul Huber^1,3

1: Munich University of Applied Sciences, Germany; 2: University of Duisburg-Essen, Germany; 3: University of West Bohemia, Czech Republic; 4: University of Wuppertal, Germany; 5: University Jaume I, Spain

Ultrashort Pulse Laser-Assisted Sample Preparation for High-Resolution X-Ray Microscopy

Hardik Vaghasiya, Murilo Izodoro Santos, Paul-Tiberiu Miclea

Fraunhofer Center for silicon photovoltaics, Germany

OCT for Controlled and Precise Robotic Arc Welding and Tactile Laser Welding and Brazing

Nataliya Deyneka Dupriez

Lessmüller Lasertechnik GmbH, Germany

Adaptive laser beam shaping with a deformable mirror for gap bridging in autogenous butt joint welding

Yongcui Mi¹, Fredrik Sikström¹, Morgan Nilsen¹, Stefano Bonora², Antonio Ancona^1,2,3

1: Department of Engineering Science, University West, Sweden; 2: Institute for Photonics and Nanotechnologies, Italy; 3: Physics Department, University of Bari "Aldo Moro", Italy

Automated rewelding processes based on inline detection of process anomalies during laser deep penetration welding

Andreas Krämer¹, Timon Ahlers¹, Ronald Pordzik¹, Tim Radel^1,2

1: BIAS - Bremer Institut für angewandte Strahltechnik GmbH, Klagenfurter Straße 5, 28359 Bremen, Germany; 2: MAPEX Center for Materials and Processes, Postfach 330 440, 28334 Bremen, Germany

Novel development of real-time capable data infrastructure for inline process observa-tion of 2D beam oscillation copper welding

Dirk Dittrich¹, Axel Jahn¹, Linda Ullmann¹, Frank Sonntag¹, Andreas Wetzig¹, Joshua Giltinan², Jeno Szep²

1: Fraunhofer Institute for Materials- and Beam Technology, Germany; 2: Fraunhofer USA Center Mid-Atlantic, USA

Influence of the beam diameter on the resistance of laser guards to green laser radiation

Matthias List¹, Uqba Aftab Alam², Rico Bühring¹, Moritz Beck², Hans-Joachim Krauß¹

1: Bayerisches Laserzentrum GmbH, Germany; 2: Laservision GmbH & Co. KG, Germany

Definition of requirements for robust seam-tracking in robotic laser welding applications

Matteo Moscatelli¹, Serge Dib², Cristiano Raffaldi³, Mara Tanelli¹, Ali Gökhan Demir²

1: Department of Electronics, Information and Bioengineering, Politecnico di Milano, Via Ponzio 34/5, 20133 Milan, Italy; 2: Department of Mechanical Engineering, Politecnico di Milano, Via La Masa 1, 20156 Milan, Italy; 3: BLM Group - Adige S.p.A, Via per Barco 11, 38056 Levico Terme, Italy

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

Invited Talk: Compact and easy-to-use device for automated laser-based synthesis of colloidal nanoparticles

Friedrich Waag

Nanonium GmbH, Katernberger Straße 107, 45327 Essen, Germany

Using lasers to produce nanofibers

Félix Quintero^1,4, Joaquín Penide², Raúl Barciela^1,4, Mónica Fernández-Arias^1,4, Antonio Riveiro^4,5, Jesús del Val³, Rafael Comesaña^4,5, Juan Pou^1,4

1: Applied Physics Department, University of Vigo, Spain; 2: Medical & Engineering Technologies, GMIT, Ireland; 3: Defense University Center, Spanish Naval Academy, Spain; 4: CINTECX, University of Vigo, LaserON, Spain; 5: Materials Engineering, Applied Mechanics and Const. Dept. University of Vigo, Spain

Antibiofouling behaviour of Low Spatial Frequency LIPSS (LSFL) via femtosecond Laser Surface Texturing

Liliana Papa^1,2, Adam Hansson^4,5, Caterina Gaudiuso², Annalisa Volpe^1,2, Francesco Paolo Mezzapesa², Matias Berglin^3,4, Anders Lundgren³, Antonio Ancona^1,2,5

1: Intercollegiate Department of Physics “M. Merlin”, University of Bari and Polytechnic University of Bari, Via G. Amendola 173, 70125 Bari, Italy; 2: National Research Council (CNR), Institute for Photonics and Nanotechnologies (IFN), Via G. Amendola 173, 70125 Bari, Italy; 3: Department of Chemistry and Molecular Biology, University of Gothenburg, Gothenburg 40530,Sweden; 4: Department of Chemistry and Materials, RISE Research Institutes of Sweden, Borås 50115, Sweden; 5: Department of Engineering Science, University West, Trollhättan, 461 86, Sweden

Pulsed Laser Ablation in Liquids Using Donut-Shaped Beams: A new approach for nanoparticle size control

Abdel Rahman Altakroury¹, Oleksandr Gatsa², Farbod Riahi¹, Zongwen Fu¹, Miroslava Flimelová², Andrei Samokhvalov¹, Stephan Barcikowski³, Carlos Doñate-Buendía^1,4, Alexander V. Bulgakov², Bilal Gökce¹

1: Chair of Materials Science and Additive Manufacturing, School of Mechanical Engineering and Safety Engineering, University of Wuppertal; 2: HiLASE Centre, FZU - Institute of Physics of the Czech Academy of Sciences; 3: Technical Chemistry I and Center for Nanointegration Duisburg-Essen (CENIDE), University of Duisburg-Essen; 4: GROC·UJI, Institute of New Imaging Technologies, Universitat Jaume I

Laser gas and centrifugal atomization

Yuri Chivel

MerPhotonics, France

From Synthesis to Cure: Laser Synthesized Copper Sulphide Nanoparticles in Biomedical Applications

Umut Taylan^1,2, Samet Akçimen², Ismail Eş^2,3, Beyza Nur Küçük², Esra Kendir Tekgül², Çağatay Çelebi⁴, Yasin Kumru⁴, Hayrettin Köymen^2,4, Fatih Inci², Bülend Ortaç²

1: Swiss Federal Laboratories for Materials Science and Technology (Empa), Feuerwerkerstrasse 39, 3600, Thun, Switzerland; 2: National Nanotechnology Research Center (UNAM), Institute of Materials Science and Nanotechnology, Bilkent University, 06800 Ankara, Türkiye; 3: Department of Engineering Science, Institute of Biomedical Engineering (IBME), University of Oxford, OX3 7DQ Oxford, UK; 4: Acoustic and Underwater Technologies Research Center (BASTA), Department of Electrical and Electronics Engineering, Bilkent University, 06800 Ankara, Türkiye

Melt pool and wire incorporation stability during laser Directed Energy Deposition

Joerg Volpp, Fredrik Sikström

Department of Engineering Science, University West, 461 86 Trollhättan, Sweden

Beam-Shaping - The easiest solution to increase benefits for Laser Powder Bed Fusion

Thinaut Atché, Aymen Chargui, Adeline Orieux, Gwenn pallier, Guillaume Labroille

Cailabs, France

Laser-assisted FFF for high-performance 3D printed components with enhanced mechanical strength

Andres González, Camilo Prieto, David Diego-Vallejo, Zaira M.Berdiñas, Alberto Pedreira, Ander Reizábal, Pablo Romero-Rodriguez

AIMEN Technology Center, Pol.Cataboi s/n, Porriño (Pontevedra), Spain

Production of linear support structures made of glass using additive manufacturing

Franz Hesse, Andreas Herrmann, Jörg Hildebrand, Jean Pierre Bergmann

Technische Universität Ilmenau, Ilmenau, Germany

Impact of CO2 Laser Radiation on Optical Fibers’ Waveguiding Characteristics in the Laser Glass Deposition Process

Florian Spengler^1,2, Sven-Olaf Waldhauer¹, Anna Karoline Rüßeler^1,2, Moritz Hinkelmann^1,2, Stefan Kaierle^1,2,3, Dietmar Kracht^1,2,4

1: Laser Zentrum Hannover e.V., Hollerithallee 8, 30419 Hannover, Germany; 2: Cluster of Excellence PhoenixD (Photonics, Optics, and Engineering Innovation AcrossDisciplines), Hannover, Germany; 3: Institut für Transport- und Automatisierungstechnik, An der Universität 2, 30823 Garbsen, Germany; 4: Institut für Photonik, Nienburger Str. 17, 30167 Hannover, Germany

Comparative study of powder bed fusion of highly alloyed Al-Li using a CW and an ultrashort pulse laser

Lisa Matthäus¹, Hagen Peter Kohl¹, Dongmei Liu¹, Stephanie Lippmann¹, Stefan Nolte^1,2

1: Friedrich Schiller University Jena, Germany; 2: Fraunhofer Institute for Applied Optics and Precision Engineering IOF

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

Selective laser induced metallization of dielectrics for electronic applications

Modestas Sadauskas, Šarūnas Mickus, Evaldas Kvietkauskas, Viktorija Vrubliauskaitė, Justina Žemgulytė, Paulius Ragulis, Karolis Ratautas, Romualdas Trusovas

FTMC - Fizinių ir technologijos mokslų centras, Lithuania

UV laser nanostructuring for the selective growth of high-quality III-V semiconductor layers

Julian Hürtgen¹, Serhiy Danylyuk¹, Yilmaz Dikme²

1: Fraunhofer Insitute for Laser Technology ILT, Germany; 2: Element 3-5 GmbH, Germany

Demonstration of etch depth limitation by evanescent-light-assisted etching of n-GaAs

Kaito Miyakoda¹, Hirofumi Hidai^1,2, Sho Itoh^1,3, Souta Matsusaka¹

1: Department of Mechanical Engineering, Chiba University, Japan; 2: Molecular Chirality Research Center, Chiba University, Japan; 3: Faculty of Engineering Technology and Science, Higher Collerges of Technology, United Arab Emirates

Determining the electric properties and proportionality factor of digitally printed and laser-sintered strain gauges for tensile stress measurement

Samuel Moritz Fink, Martin Shulevski

Fraunhofer-Institut für Lasertechnik ILT, Germany

Modification mechanisms on 4HN-SiC and 6H-SiC wafers using picosecond laser ablation: a comparative study of Deep-UV and UV technologies

YIYUN KANG¹, Mareike Schäfer², Alexej Belakowski¹, Fabian Soerensen¹, Ralf Knappe¹, Johannes L'huillier²

1: Coherent Kaiserslautern GmbH, Germany; 2: Institut für Oberflächen und Schichttechnik GmbH

Micro-Polishing of 4H-SiC Surfaces Using Femtosecond Laser Vector Beams and Wobble-Based Scanning

Chung-Wei Cheng^1,2, Che Tseng¹, Jia Fan Guo^1,2

1: National Yang Ming Chiao Tung University, Taiwan; 2: Heterogeneously-integrated Silicon Photonic Integration Center, National Taiwan University of Science and Technology, No. 43, Section 4, Keelung Road, Taipei 106, Taiwan

Effect of interlayer deformation on microstructure of laser additively manufactured Inconel 625

Abeer Mithal^1,2, Vijay Shankar Sridharan^1,2, Nicholas Tan², Youxiang Chew², Sridhar Idapalapati¹

1: School of Mechanical and Aerospace Engineering, Nanyang Technological University, 50 Nanyang Avenue, Singapore 639798, Republic of Singapore; 2: Advanced Remanufacturing and Technology Centre, Agency for Science Technology and Research, 3 Cleantech Loop, #01-01 Cleantech Two, Singapore 637143, Republic of Singapore

Laser-based powder fixation on textiles for highly functionalized coatings

Yashas Shivakumar, Annika Gambke

Textile Research Institute Thuringia-Vogtland, Germany

Virtual PID-Controlled Thermal Model for Enhanced Stability in High Mass Flow Directed Energy Deposition

Francisco Cordovilla¹, Piera Álvarez², María Ángeles Montealegre², Marcos Diaz¹, Sandra Chacón-Fenández¹, Ángel García-Beltrán¹, Ignacio Angulo¹, José L. Ocaña¹

1: Universidad Politécnica de Madrid, Spain; 2: Ikergune A.I.E., San Antolin, 3, 20870 Elgoibar, Guipúzcoa, Spain

Blister-Actuated Laser-Induced Forward Transfer (BA-LIFT): Dynamics and Numerical Modeling for Process Optimization

Juan José Moreno Labella, David Munoz-Martin, David Canteli, Cristina Muñoz-Garcia, Miguel Morales, Carlos Molpeceres

Centro Láser, Universidad Politécnica de Madrid, c/Alan Turing 1, 28038 Madrid, Spain

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

High speed femtosecond laser battery processing

Eric AUDOUARD¹, Marie FLEUREAU¹, Quentin MOCAER¹, Amina ARAHOUNI², Jean Michel ROMANO², Frédéric MERMET²

1: Amplitude, Pessac, FRANCE; 2: IREPA laser, Illkirch, FRANCE

Micro-processing improvement with a 0.07 uniformity square top-hat at 200fs, 400µJ and 1030nm, based on Multi-Plane Light Conversion

Mahmoud Ziat¹, Dmitry Nuzhdin¹, Kerim Yildirim², Mian Monib Ur Rehman², Balasubramanian Nagarajanb², Gwenn Pallier¹, Guillaume Labroille¹, Sylvie Castagne²

1: Cailabs, France; 2: KU Leuven, Belgium

Laser-Based Drying of PEMFC Catalyst Layers

Manuella Guirgues

Fraunhofer ILT, Germany

Scaling effects of fast laser drying processes in battery production

Delil Demir

Fraunhofer Institute for Laser Technology ILT, Germany

Efficiency of Spatial Shaping of Femtosecond Laser Beams with a Feedback Loop for Surface Patterning

Bahia Najih^2,3, Cyril Mauclair¹, Martin Delaigue², Florent Bourquard³

1: Univ Angers LPHIA SFR MATRIX F-49000 Angers France; 2: Amplitude laser, laboratoire Hubert Curien, France; 3: Laboratoire Hubert Curien UMR 5516 CNRS Université Jean Monnet Saint-Étienne France

Investigation of a melt pool temperature control for the additive manufacturing process of tool components using laser directed energy deposition

Eike Tim Koopmann¹, Leonard Simon Plutz¹, Leonard Schmitz¹, Christoph Kaminsky¹, Henning Zeidler²

1: Mercedes-Benz AG, Sindelfingen, Germany; 2: Institute for Machine Elements, Design and Manufacturing, TU Bergakademie Freiberg, Freiberg, Germany

Monitoring of heat accumulation during laser cladding process

Martin Novak, Adam Cermak, Pavel Zeman, Petr Kolar

Department of Production Machines and Equipment (RCMT), Faculty of Mechanical Engineering, Czech Technical University in Prague, Technicka Street 4, 16000, Prague 6, Czech Republic

Enhancing Layer Adhesion in Material Extrusion AM with Adaptive Laser Preheating Integrated in Printhead

Dennis Meisner¹, Nikitas Kaftiranis¹, Petra Rapp², Stefan Hierl¹

1: OTH Regensburg, Germany; 2: Multec GmbH, Germany

Combining additive and subtractive manufacturing by cw- and ultrafast laser sources to create transient heat dissipating structures for temperature field optimization

Felix Teufel^1,2, Johannes Michel¹, Manuel Henn¹, Jake Benzing³, Maximilian Frey⁴, Nico Ulff⁴, Volker Schulze⁴, Frederik Zanger⁴, Christian Hagenlocher¹, Thomas Graf¹

1: Institut für Strahlwerkzeuge (IFSW) Universität Stuttgart, Germany; 2: University of Stuttgart, Graduate School of Excellence advanced Manufacturing Engineering (GSaME); 3: National Institute of Standards and Technology (NIST) Fatigue and Fracture Group, USA; 4: Karlsruhe Institute of Technology (KIT), wbk Institute of Production Science

Fast spatial pulse distribution for Laser Powder Bed Fusion (PBF-LB/M)

Daniel Heussen¹, Wilhelm Meiners¹, Tim Lantzsch¹, Niklas Praetzsch¹, Thomas Laag¹, Constantin Leon Haefner^1,2

1: Fraunhofer Institute for Laser Technology ILT, Aachen, Germany; 2: RWTH Aachen University - Chair for Laser Technology LLT, Aachen, Germany

Challenges for integrating a laser micro-machining laser into an SLM (Selective Laser Melting) machine.

Julien DUPUY¹, Alexandre Miazek¹, Julien Magnien², Yves Hernandez¹

1: Multitel, Belgium; 2: Sirris, Belgium

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)

Indentation technique based on laser-induced shock waves for material testing with moving specimen

Laurin Schaper¹, Tim Radel^1,2

1: BIAS - Institute of Applied Beam Technology, 28359 Bremen, Germany; 2: MAPEX Center for Materials and Processes, Postfach 330 440, 28334 Bremen, Germany

Fabrication of Sub-10 µm Size Asymmetric Microstructures by Mask Projection Laser Ablation

Umut Taylan, Benjamin Minnig, Nicolas Zaugg, Patrik Hoffmann

Swiss Federal Laboratories for Materials Science and Technology (EMPA), Switzerland

Effect of Thin-Film Overcoat Thickness on Femtosecond Laser Damage Resistance

jing meng

Optimax Systems Inc. , United States of America

Laser Structuring of Thin Glass using a Surface-Absorbing Layer

Eric YJ Vancoille

JohTho Engineering, Belgium

Laser nanostructuring of diamond-like carbon coatings deposited by PECVD on PC substrates

Diego Gallego, Aldara Pan, Iñigo Ramón, Gemma García Mandayo, Ainara Rodríguez, Isabel Ayerdi

Asociación Centro tecnológico Ceit, Spain

Laser-Generated Reflection Gratings on Shape Memory Actuators

Damian L. Haske¹, Jan Marx¹, Marvin Schuleit¹, Evgeny L. Gurevich², Cemal Esen¹, Andreas Ostendorf¹

1: Applied Laser Technologies, Ruhr University Bochum, Universitätsstraße 150, 44801 Bochum, Germany; 2: Laser Center (LFM), University of Applied Sciences Münster, Stegerwaldstraße 39, 48565 Steinfurt, Germany

Macro-SLM - A cost efficient powder bed approach for cubic meter steel components

Andreas Kotsch, Martin Erler, Sebastian Weinhold, Michael Pfeifer, André Streek

Laserinstitut Hochschule Mittweida, Germany

Feasibility Analysis and Initial Findings on Additive Repairing of Turbine Blades Using the MESSIAH System

Myriam Maalaoui¹, Hans-Henrik Westermann², Jens Niedermeyer¹, Ina Meyer¹, Roland Lachmayer¹

1: Institute of Product Development (IPeG), Leibniz University Hannover, Germany; 2: MTU Maintenance Hannover GmbH, Germany

Development of a centrifugal laser powder bed fusion system for additive manufacturing

Jan-Hendrik Koch¹, Florian Hüsing¹, Henning Janssen¹, 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-based additive manufacturing sustainability assesment and optimization by process and machine monitoring

Roberto Alonso, Alexandre Martín-Mestres, Iago Gil, Sara Carracelas, Jorge Luis Arias

AIMEN Technology Centre, Spain