How to facilitate 3D printing on the moon (Keynote Talk)

Stefan Kaierle

Laser Zentrum Hannover e.V., Germany

Recent laser applications in Japan and impact of beam intensity control and irradiation method (Keynote Talk)

Yasuhiro Okamoto

Faculty of Environmental, Life, Natural Science and Technology, Okayama University, Japan

Additive Manufacturing in Biomedical Applications (Keynote Talk)

Paulo Bartolo

Nanyang Technological University, Singapore

METAMOULD's quest: transforming mould fabrication through laser-based AM (Keynote Talk)

Mirko Sinico

KU Leuven, Belgium

Holistic approach for laser beam welding for cell contacting of battery modules with highest quality (Invited Industrial Talk) [1]

Jan-Philipp Weberpals, Daniel Böhm

AUDI AG, Germany

Production of soft magnetic FeSi6.5 parts with precise layer topography using integrated laser remelting at PBF-LB/M to induce multi-material lamination [2]

Markus Hofele, Hubert Antony, David Kolb, Harald Riegel

LaserApplicationCenter (LAZ), Aalen University, Beethovenstraße 1, 73430 Aalen, Germany

Influence of electrode characteristics on the laser cutting of lithium-ion battery anodes [3]

Pourya Heidari Orojloo, Ali Gökhan Demir

Department of Mechanical Engineering, Politecnico di Milano, Via La Masa 1, 20156 Milan, Italy

Dissimilar laser welding of high-thickness Cu/Al plates for high-current density electrical batteries [4]

Michele Francioso, Erica Liverani, Alessandro Ascari, Alessandro Fortunato

University of Bologna, Italy

The effect of in-source spatial beam shaping on the laser welding of e-mobility metals and alloys [5]

Francesco Galbusera, Giulio Borzoni, Simone D'Arcangelo, Leonardo Caprio, Barbara Previtali, Ali Gökhan Demir

Department of Mechanical Engineering, Politecnico di Milano, Via La Masa 1, I-20156 Milan, Italy

RAYDIME METER: High-precision distance measurement and automated focus adjustment for reliable welding of battery cells (Industrial Talk) [6]

Reza Ghadimi, Jan Bernd Habedank, Ulrich Schiegg, Wolfgang Lehmann

RAYLASE GmbH, Germany

Laser cutting using dynamically modulated intensity distribution [7]

Masoud Kardan^1,2, Sylvie Castagne^1,2, Joost R Duflou^1,2

1: KU Leuven, Department of Mechanical Engineering, Celestijnenlaan 300, Heverlee 3001, Belgium; 2: Member of Flanders Make

3D oscillation-assisted laser beam cutting with time-synchronized process monitoring [8]

Julia Bach¹, Mikhail Teverovskiy², Patrick Herwig², Jeno Szep²

1: Fraunhofer IWS, Germany; 2: Fraunhofer USA Center Mid-Atlantic, USA

Multi-Spot Beam Shaping Optics for Multi-kW Lasers (Industrial Talk) [9]

Alexander Laskin¹, Jörg Volpp²

1: AdlOptica Optical Systems GmbH, Germany; 2: Luleå University of Technology, 97187 Luleå, Sweden

Coherent beam combining - Beam characterization of a new 14 kW CBC laser source and first results on copper welding [10]

Dirk Dittrich, Stephan Boerner, Joseph Maria Barrios Larranaga, Axel Jahn, Andreas Wetzig

Fraunhofer Institute for Material and Beam Technology, Germany

Tailored beamshape sequences for welding using a Dynamic Beam Laser [11]

Robert Bernhard, Rachel Assa, Nina Armon, Eyal Shekel

Civan Lasers Europe GmbH, Germany

Laser beam welding of high thickness sheet metal with highly dynamic beam shaping [12]

Simon Olschok, Marcel Troise, Uwe Reisgen

RWTH Aachen University, Germany

Local laser heat treatment of AlSi10Mg as-built parts produced by Laser Powder Bed Fusion [13]

Steffen Kramer^1,2, Michael Jarwitz¹, Volker Schulze², Frederik Zanger²

1: University of Stuttgart, Institut fuer Strahlwerkzeuge IFSW, Pfaffenwaldring 43, 70569 Stuttgart, Germany; 2: Karlsruhe Institute of Technology, wbk Institute of Production Science, Kaiserstraße 12, 76131 Karlsruhe, Germany

Investigations into the interfacial characteristics of Inconel 718/stainless steel 316L fabricated by multi-material Laser Powder Bed Fusion [14]

Moloy Sarkar¹, Vikas Tiwari², Sarvesh Kumar Mishra¹, Sudhanshu Shekhar Singh², Janakarajan Ramkumar¹

1: Department of Mechanical Engineering, Indian Institute of Technology Kanpur, India; 2: Department of Materials Science and Engineering, Indian Institute of Technology Kanpur, India

Parameter prediction and laser alignment for synergistic Multi-Laser Powder Bed Fusion (Invited Paper) [15]

Samuel Searle^1,2, Michele Vanini^1,2, Lars Vanmunster^1,2, Bey Vrancken^1,2,3

1: Dept. of Mechanical Engineering, KU Leuven, Belgium; 2: Dept. of Materials Engineering, KU Leuven, Belgium; 3: Flanders Make@KU Leuven, Belgium

Effects of Ni-based powder reuse on porosity, surface quality and reproducibility of thin-walled structures in Laser Powder Bed Fusion process [16]

Dmytro Lesyk^1,3, Silvia Martinez¹, Aitzol Lamikiz^1,2

1: Aeronautics Advanced Manufacturing Center, University of the Basque Country, Zamudio, Spain; 2: Mechanical Engineering Department, University of the Basque Country, Bilbao, Spain; 3: National Technical University of Ukraine "Igor Sikorsky Kyiv Polytechnic Institute", Ukraine

Parameter development for Laser Powder Bed Fusion of nickel-based Haynes 282 using diverse density determination methods [17]

Josué Dávila, Gunther Mohr, Kai Hilgenberg

Bundesanstalt für Materialforschung und -prüfung, Germany

Impact of illumination technique on the detectability of irregularities in high-resolution images of visual in-situ process monitoring in Laser Powder Bed Fusion [18]

Benjamin Merz^1,2, Jonathan Schmidt¹, Konstantin Poka¹, Gunther Mohr¹, Julian Polte^2,3, Kai Hilgenberg¹

1: Additive Manufacturing of Metallic Components, Bundesanstalt für Materialforschung und -prüfung, Germany; 2: Institute for Machine Tools and Factory Management IWF, Technische Universität Berlin, Germany; 3: Fraunhofer Institute for Production Systems and Design Technology IPK, Germany

Improving the weld seam quality in laser welding processes by means of Bayesian optimization [19]

Michael Haas^1,2, Volkher Onuseit¹, John Powell³, Robert Steinhoff¹, Felix Zaiß¹, Johannes Wahl¹, 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; 3: InnovationCampus Future Mobility (ICM), Stuttgart, Germany

Real-time grid detection in sheet metal fiber laser cutting through coaxial monitoring [20]

Sofia Guerra¹, Leonardo Caprio¹, Matteo Pacher³, Davide Gandolfi³, Barbara Previtali¹, Sergio Matteo Savaresi², Mara Tanelli²

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

Making the supposedly invisible visible - with sophisticated AI models based on seamless in-process data on the way to safe products (Industrial Talk) [21]

Markus Kogel-Hollacher^1,3, Jens Reiser¹, Joachim Schwarz², Thomas Nicolay³

1: Precitec GmbH & Co. KG, Germany; 2: Precitec Vision GmbH & Co. KG, Switzerland; 3: Precitec Optronik GmbH, Germany

Comparison of machine learning based methods on prediction quality of thin-walled geometries using laser-based Direct Energy Deposition [22]

Pascal Paulus¹, Yannick Ruppert², Alfred Andreicovici², Michael Vielhaber¹, Juergen Griebsch²

1: Institute of Engineering Design, Saarland University, Germany; 2: School of Engineering, University of Applied Sciences Saarland, Germany

Condition monitoring of optical components for improved system performance and reliability (Industrial Talk) [23]

David Blázquez-Sánchez, Niklas Weckenmann, Lukas Höfflin, Axel Hatwig, Schäfer Marcel

Precitec GmbH & Co. KG, Germany

Melt pool monitoring and machine learning approaches for anomaly detection in PBF-LB [24]

Alberto Barrutia, Maria Elzaurdi, Maria San Sebastian

LORTEK, Basque Research and Technology Alliance (BRTA), Arranomendia kalea 4A, Ordizia, 20240, Spain

Micro-perforation of the porous transport layer for proton exchange membrane water electrolyzer cells using ultrashort laser pulses [44]

Pawel Garkusha¹, Christian Geiger¹, Christian Bernauer¹, Tony Weiss¹, Matthias F. Ernst², Michael F. Zaeh¹

1: Technical University of Munich, TUM School of Engineering and Design, Department of Mechanical Engineering, Institute for Machine Tools and Industrial Management; 2: Technical University of Munich, TUM School of Natural Sciences, Department of Chemistry and Catalysis Research Center, Chair of Technical Electrochemistry, 85747 Garching, Germany

Acoustic process monitoring during the structuring of the diffusion media for fuel cells with ultrashort laser pulses [45]

Christian Geiger¹, Pawel Garkusha¹, Simon Mehrl¹, Christian Bernauer¹, Pascal A. Schirmer², Michael F. Zaeh¹

1: Technical University of Munich, Germany; TUM School of Engineering and Design, Department of Mechanical Engineering, Institute for Machine Tools and Industrial Management, 85748 Garching; 2: BMW AG, Germany; Department of Power Electronics, Petuelring 130, 80809 Munich

Characterisation of batteries materials ablation by femtosecond pulses [46]

Eric Audouard¹, Marie Fleureau¹, David Pallares², Jean Michel Romano², Frederic Mermet²

1: Amplitude - 11 avenue de Canteranne, 33600 Pessac, France; 2: IREPA laser – Parc d’innovation, 67400 Illkirch, France

Pores and spatters reduction for Copper and Aluminum Laser Welding with MPLC beam-shaping solutions (Industrial Talk) [47]

Gwenn Pallier¹, Adeline Orieux¹, Avinash Kumar¹, Marc Hummel², Felix Zaiß³, Carlos Duran⁴, Tobias Florian⁴, Andreas Otto⁴, Guillaume Labroille¹

1: Cailabs, France; 2: Fraunhofer ILT; 3: IFSW; 4: TU Wien

Process parameter development of a Ti6Al4V-5wt%Cr3C2 metal matrix composite fabricated by Laser Powder Bed Fusion (Invited Paper) [48]

Nompumelelo Nkosi, Natasha Sacks

Stellenbosch University, South Africa

Oxygen-free production: Influence of silane-doped atmosphere on porosity and mechanical properties of Ti-6Al-4V processed by PBF-LB [49]

Nicole Emminghaus¹, Jörg Hermsdorf¹, Stefan Kaierle^1,2

1: Laser Zentrum Hannover e.V., Hollerithalle 8, 30419 Hannover, Germany; 2: Leibniz Universität Hannover, Institut für Transport- und Automatisierungstechnik, An der Universität 2, 30823 Garbsen, Germany

Optimization of manufacturing strategies in Laser Powder Bed Fusion of Ti-6Al-4V for graded gyroid lattices focusing on dimensional accuracy [50]

Anne Jahn¹, Timo Ballaschke¹, Nicole Emminghaus¹, Stefan Kaierle², Jörg Hermsdorf¹

1: Laser Zentrum Hannover e.V., Hollerithallee 8, D-30419 Hannover, Germany; 2: Leibniz Universität Hannover, Institut für Transport- und Automatisierungstechnik (ITA), An der Universität 2, D-30823 Garbsen, Germany

Improvement of manufacturing accuracy of graded Ti-6Al-4V BCC lattice structures by local laser power adaption [51]

Nico Ulff, Eric Leingang, Johannes Schubert, Frederik Zanger

Karlsruhe Institute of Technology, Germany

Influence of geometry variations during pyrometric temperature measurement in laser material processing [52]

David Traunecker, Michael Jarwitz, Andreas Michalowski

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

Small Joints, Large Impact: Laser Beam Measurement in Battery Production (Industrial Talk) [53]

Nicolas Meunier

MKS Instruments, Germany

Millisecond-fast metrology for the absolute focal position of high-power laser processing systems (Industrial Talk) [54]

Andreas Rudolf, Johannes Roßnagel, Marc Hänsel, Stefan Wolf, Reinhard Kramer

PRIMES GmbH, Germany

Detection of diffusible hydrogen during laser beam welding under water [55]

Christoph Waßmann¹, Thomas Scheithauer², Thomas Hassel², Benjamin Emde¹, Volker Wesling¹

1: Laser Zentrum Hannover e.V., Hollerithallee 8, 30419 Hannover, Germany; 2: Leibniz Universität Hannover - Institut für Werkstoffkunde, Lise-Meitner-Straße 1, 30823 Garbsen, Germany

Correlation of optical energy onto nano-additivated CuS/PA12 and LaB6/PA12 powder with depth of fusion in PBF-LB/P [56]

Simon Leupold^1,2, Michael Willeke³, Cheechau Leong¹, 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 gemeinnützige Forschungsgesellschaft mbH (BLZ), Konrad-Zuse-Straße 2-6, 91052 Erlangen, Germany

Laser assisted powder bed fusion of pure Molybdenum using ultra short laser pulses [57]

Hagen Peter Kohl¹, Lisa Matthäus¹, Brian Seyfarth¹, Stefan Nolte^1,2

1: Friedrich-Schiller-Universität Jena, 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

Near-infrared surface sensitizing of PA12 to enable diode Laser-Based Powder Bed Fusion [58]

Nadine Stratmann¹, Michael Willeke¹, Simon Leupold², Michael Schmidt², Stephan Barcikowski¹, Anna Ziefuß¹

1: Technical Chemistry I and Center for Nanointegration Duisburg-Essen (CENIDE), University of Duisburg-Essen, Universitätsstraße 7, 45141 Essen,Germany; 2: Institute of Photonic Technologies (LPT), Friedrich-Alexander-University Erlangen-Nürnberg, Konrad-Zuse-Str.3-5, 91052, Erlangen, Germany

Determination of Li-content of additively manufactured Al-Li-parts using laser induced breakdown spectroscopy [59]

Lisa Matthäus¹, Hagen P. Kohl¹, Dongmei Liu^1,2, Brian Seyfarth^1,3, Stephanie Lippmann^1,2, Stefan Nolte^1,3

1: Institute of Applied Physics, Abbe Center of Photonics, Friedrich-Schiller-Universität Jena; 2: Otto Schott Institute of Material Research, Friedrich-Schiller-Universität Jena; 3: Fraunhofer Institute for Applied Optics and Precision Engineering IOF Jena

Investigation on different laser-powder alignments and their influence on part properties in high-speed Directed Energy Deposition [60]

Jacques Platz, Johanna Steiner-Stark, Benjamin Kirsch, Jan C. Aurich

Institute for Manufacturing Technology and Production Systems, RPTU Kaiserslautern, Germany

Exploration of laser-induced drop transfer modes from wire for AM [61]

Alexander F. H. Kaplan¹, Mikael Hellström¹, Frank Brueckner^1,2

1: Luleå University of Technology, Sweden; 2: Fraunhofer IWS, Dresden, Germany

A first approach of Laser Mesh Cladding [62]

Thomas Girerd¹, Omkar Mypati¹, Marco Simonelli¹, Andres Gameros², Andy Norton², Adam Clare³

1: University of Nottingham, United Kingdom; 2: Rolls-Royce Plc, Derby, UK; 3: Department of Mechanical Engineering, University of British Columbia, Vancouver, Canada

Comparative analysis of Direct Energy Deposition parameters for Ti-6Al-4V using laser beam and coaxial wire (DED-LB/CW) [63]

Xabat Orue¹, Jose Luis Iñarrairaegi¹, Eduardo Tabares¹, Mikel Abasolo², Carlos Soriano¹, Iban Quintana¹

1: Tekniker, Iñaki Goenaga 5, Eibar 20600, Gipuzkoa, Spain; 2: University of the Basque Country, Plaza Ingeniero Torres Quevedo 1, Bilbao 48013, Bizkaia, Spain

Energy consumption monitoring in DED-LB for enhancing the process sustainability [64]

Aizpea Urresti¹, Jon Iñaki Arrizubieta¹, Agathe Loroño², Olatz Ukar²

1: Department of Mechanical Engineering, University of the Basque Country UPV/EHU, Spain; 2: Faculty of Engineering, University of Deusto, Spain

Melt flow complexity in multi-spot laser welding of asymmetric t-joints [65]

Dorsa Motalebi, Alexander Kaplan

Luleå University of Technology, Sweden

Influence of NIR-laser radiation on the underwater arc welding process with flux-cored wire [66]

Marcel Rieck¹, Jens Koglin², Benjamin Emde¹, Jörg Hermsdorf¹

1: Laser Zentrum Hannover e.V., Hollerithallee 8, 30419 Hannover, Germany; 2: AMT GmbH, Jülicher Straße 248, 52070 Aachen, Germany

Evaluation of pore formation during welding of copper using different laser sources [67]

Andreas Heider, Lukas Alter

Robert Bosch GmbH, Germany

Investigation of laser wire bonding for the fabrication of tensegrity structures [68]

Laura Budde¹, Marvin Spengler^1,2, Nick Schwarz¹, Jörg Hermsdorf¹, Henning Ahlers², Stefan Kaierle¹

1: Laser Zentrum Hannover e.V., Germany; 2: Hochschule Hannover - University of Applied Sciences, Germany

Welding of 20 mm thick EH40 steel by means of a single-pass hybrid laser-arc welding technique [69]

Simone Peli, Federico Bonaldo, Marco Riva

Castellini Officine Meccaniche, Italy

Automation of Laser Processes - Concepts and Solutions (Industrial Talk) [70]

Roland Dierken, Peter Hoffmann

ERLAS Erlanger Lasertechnik GmbH, Germany

Stereo vision based pose estimation for Hybrid Additive Manufacturing with Laser Powder Bed Fusion [71]

Gururaj Shivayogi Horakeri, Bohdan Vykhtar, Ingomar Kelbassa

Fraunhofer IAPT, Germany

Active thermography in PBF-LB/M with the synchronized path infrared thermography [72]

Christian Sauer, Dennis Höfflin, Andreas Schiffler, Jürgen Hartmann

THWS, Germany

Impact of fume on two-channel-pyrometric temperature measurements and process stability during Laser Powder Bed Fusion [73]

Sven Müller, Tim Radel

BIAS - Bremer Institut für angewandte Strahltechnik GmbH, Germany

Spectral emission characteristics of single point exposure LPBF process [74]

Ema Vasileska¹, Leonardo Caprio², Ali Gökhan Demir², Vladimir Dukovski¹, Valentina Gecevska¹, Barbara Previtali²

1: Ss. Cyril and Methodius University in Skopje, Faculty of Mechanical Engineering - Skopje, Ruger Bosković 18, 1000 Skopje, North Macedonia; 2: Politecnico di Milano, Department of Mechanical Engineering, Via La Masa 1, 20156 Milan, Italy

reAM250 – An open-source research platform for process monitoring and control in the Powder Bed Fusion of Metals using a laser beam [75]

David Lukas Wenzler, Dominik Rauner, Hannes Panzer, Thomas Mair, Leonhard Kutscherauer, Andreas Wimmer, Daniel Wolf, Siegfried Baehr, Michael Friedrich Zaeh

Technical University of Munich, Institute for Machine Tools and Industrial Management (iwb), Germany

Comparison of NIR and SWIR thermography for defect detection in Laser Powder Bed Fusion [76]

Nils Scheuschner¹, Simon Oster¹, Gunther Mohr², Kai Hilgenberg²

1: Bundesanstalt für Materialforschung und –prüfung (BAM), Fachbereich 8.3 Thermografische Verfahren, Germany; 2: Bundesanstalt für Materialforschung und –prüfung (BAM), Fachbereich 9.6 Additive Fertigung metallischer Komponenten, Germany

Challenges and possibilities of laser processes under water (Invited Talk) [77]

Jörg Hermsdorf

Laser Zentrum Hannover e.V., Germany

Replacement of conventional plasma cutting by high-power laser cutting: An outlook considering recent developments of high-power lasers. (Industrial Talk) [78]

Rene Siebert, Klaus Löffler

Precitec GmbH & Co.KG, Germany

Water jet guided laser cutting of electrical steel laminations [79]

Helen Elkington¹, Ben Mason¹, Mitchell Leering¹, Xiao Chen², Alexei Winter³, Lloyd Tinkler³, Kursad Sezer¹, Sundar Marimuthu¹

1: Manufacturing Technology Centre, Pilot Way, Coventry, CV7 9JU, United Kingdom; 2: University of Sheffield, Mappin Street, Sheffield, S1 3JD, United Kingdom; 3: Advanced Manufacturing Research Centre, Wallis Way, Rotherham, S60 5TZ, United Kingdom

Laser cutting of CFRP using novel cutting strategies [80]

Dominic James Kelsey¹, Helen Elkington², Alexander Jackson-Crisp¹, Lee Harper¹, Sundar Marimuthu², K.T. Voisey¹

1: University of Nottingham, United Kingdom; 2: The Manufacturing Technology Centre, Coventry, United Kingdom

Investigating the effect of laser power modulation in transient states during fusion cutting of 10 mm thick AISI304 [81]

Matteo Busatto, Sofia Guerra, Leonardo Caprio, Barbara Previtali

Department of Mechanical Engineering, Politecnico di Milano, Via La Masa 1, 20156 Milan, Italy

Millisecond fibre laser drilling of alumina-alumina CMC [82]

Nathaniel Marsh¹, Duncan P Hand¹, Tian Long See², Sundar Marimuthu², Priyanka Ghosh²

1: Heriot Watt University, United Kingdom; 2: The Manufacturing Technology Centre, UK

Tailoring mechanical fatigue behaviour of LPBF-produced metal lattice structures while maintaining high manufacturability (Invited Talk) [83]

Brecht Van Hooreweder¹, Berk Baris Celik¹, Emilie Beevers¹, Sandhya Pondkule¹, Antonio Cutolo²

1: KU Leuven, Belgium; 2: Politecnico di Milano, Italy

A scan strategy for the manufacturing of support-free overhangs via Powder Bed Fusion of metals using a laser beam [84]

Kai-Uwe Beuerlein, Dominik Rauner, Michael F. Zaeh

Technical University of Munich, TUM School of Engineering and Design, Institute for Machine Tools and Industrial Managment (iwb), Boltzmannstr. 15, 85748 Garching, Germany

Comparison of in-process laser drying with furnace and vacuum drying to reduce moisture of AlSi10Mg powder processed in Laser Powder Bed Fusion [85]

Victor Lubkowitz¹, Leonie Fayner¹, Steffen Kramer², Volker Schulze¹, Frederik Zanger¹

1: Karlsruher Institute of Technology, Institute of Production Science (wbk), Germany; 2: University Stuttgart, Institute fuer Strahlwerkzeuge (IFSW), Germany

PBF-LB of CuZn42 – Process development and material Aanalysis [86]

Arvid Abel¹, Nik Bodnariuk¹, Till Biermann¹, Nicole Emminghaus¹, Jörg Hermsdorf¹, Sven Eckart², Stefan Kaierle^1,3

1: Laser Zentrum Hannover e.V., Hollerithallee 8, 30419 Hannover, Germany; 2: Institute of Thermal Engineering, TU Freiberg, Gustav-Zeuner-Straße 7, 09599 Freiberg; 3: Institute of Transport and Automation Technology, Leibniz Universität Hannover, An der Universität 2, 30823 Garbsen, Germany

Exploration of synchronized dual-beam Laser Powder Bed Fusion with high speed video imaging [87]

Lars Vanmunster^1,3, Philip J DePond², Aiden A Martin², Gabe Guss², Manyalibo J Matthews², Brecht Van Hooreweder¹, Bey Vrancken^1,3

1: KU Leuven, Department of Mechanical Engineering, Leuven, Belgium; 2: Lawrence Livermore National Laboratory, Livermore, CA 94550, USA; 3: FlandersMake @KU Leuven, Leuven, Belgium

Investigation of the effects of energy density in Laser Sintering of polypropylene on morphological and dielectric properties for high-frequency antennas [88]

Manuel Romeis¹, Dietmar Drummer¹, Michael Ehrngruber²

1: Institute of polymer technology (Friedrich-Alexander-University Erlangen-Nurnberg), Germany; 2: Institute of microwaves and photonics (Friedrich-Alexander-University Erlangen-Nurnberg), Germany

Layer-dependent temperature evolution and cooling kinetics in non-isothermal powder bed fusion of polypropylene [89]

Samuel Schlicht, Dietmar Drummer

Institute of Polymer Technology, Friedrich-Alexander-Universität Erlangen-Nürnberg, Am Weichselgarten 10, 91058 Erlangen, Germany

Individual functionalization of textiles by powder coating using laser fixation [90]

Yashas Shivakumar¹, Julia Ullrich¹, Michael Seiler², Jens Bliedtner²

1: Textilforschungsinstitut Thüringen-Vogtland e. V. (TITV e. V.), Zeulenrodaer Str. 42, 07973 Greiz, Germany; 2: Ernst-Abbe-Hochschule Jena, Carl-Zeiss-Promenade 2, 07745 Jena, Germany

Influence of the scan pattern on the melt pool temperatures and the mechanical properties of thin-walled components in Laser-Based Powder Bed Fusion of Polyamide 12 [91]

Joseph Hofmann, Katrin Wudy

Technical University of Munich, TUM School of Engineering and Design, Professorship of Laser-based Additive Manufacturing, Germany

Experimental investigation on the surface and volume homogeneity of additive manufactured fused silica components in the Laser Glass Deposition Process [92]

Khodor Sleiman^1,3, Katharina Rettschlag^1,3, Peter Jäschke¹, Stefan Kaierle^1,2,3

1: Laser Zentrum Hannover e.V., Hollerithallee 8, 30419 Hannover, Germany; 2: Leibniz Universität Hannover, Institute for Transport and Automation Technology, An der Universität 2, 30823 Garbsen, Germany; 3: Cluster of Excellence PhoenixD (Photonics, Optics and Engineering – Innovation Across Disciplines), Hannover, Germany

Laser hardening of steel with a 120 kW laser at high throughput [93]

Stefan Reich, Dominic Heunoske, Martin Lueck, Jens Osterholz

Fraunhofer Institute for High-Speed Dynamics, Ernst-Mach-Institut, EMI, Ernst-Zermelo-Str. 4, 79104 Freiburg, Germany.

Burst laser ablation in distilled and heavy water [94]

Denys Moskal, Jiří Martan, Vladislav Lang, Milan Honner

University of West Bohemia, Czech Republic

Efficient laser methods for producing spherical powders [95]

Yuri Chivel

MerPhotonics, France

Utilizing a dual nozzle system for notch generation in an underwater laser ablation process [96]

Jan Leschke, Benjamin Emde

Laser Zentrum Hannover e.V., Germany

Pyrometric temperature and emissivity determination from statistic of the broadband spectral ratio [97]

Rüdiger Schmitt

ISL, Germany

Influence of absorptivity variation on Laser Powder Bed Fusion simulation and impact of process parameters on residual stress formation [98]

Helia Mohammadkamal, Fabrizia Caiazzo

university of Salerno, Italy

Multiphysical simulation of hot cracking in Laser-Based Powder Bed Fusion [99]

Constantin Zenz, Carlos Durán, Robert Bielak, Tobias Florian, Andreas Otto

Institute of Production Engineering and Photonic Technologies, TU Wien, Austria

Numerical Simulation Approach for Laser Melting of Lunar Regolith Using an Enthalpy-Based Model [100]

Jan Keuntje¹, Tjorben Griemsmann¹, Joel Patzwald², Richard Staehr¹, Peter Jaeschke¹, Enrico Stoll², Stefan Kaierle^1,3, Ludger Overmeyer^1,3

1: Laser Zentrum Hannover e.V.; 2: Institute of Aeronautics and Astronautics, Technische Universität Berlin; 3: Institute of Transport and Automation Technology, Leibniz University Hannover

Physics-informed neural network approach to speed up Laser-DED modelling [101]

Sebastian Hartmann^1,3, Oihane Murua², Jon Iñaki Arrizubieta², Aitzol Lamikiz², Peter Mayr¹

1: Technical University of Munich, Materials Engineering of Additive Manufacturing, Munich, Germany; 2: Department of Mechanical Engineering, University of the Basque Country UPV/EHU, Bilbao, Spain; 3: Siemens AG, Erlangen, Germany

Understanding the thermo-fluid-microstructural impact of beam shaping in Laser Powder Bed Fusion using high-fidelity multiphysics simulation [102]

Mohamad Bayat¹, Richard Rothfelder², Karen Schwarzkopf², Michael Schmidt², Jesper H Hattel¹

1: Produktionstorvet 425, Department of Civil and Mechanical Engineering, Danmarks Tekniske Universitet, Kgs. Lyngby 2800, Denmark; 2: Konrad-Zuse-Straße 3/5, Lehrstuhl für Photonische Technologien (LPT, Prof. Schmidt), Friedrich-Alexander-Universität Erlangen-Nürnberg , 91052 Erlangen, Germany

Exceeding the limits of conventional manufacturing by means of combining additive and subtractive material processing with cw- and ultrafast lasers (Invited Talk) [103]

Christian Hagenlocher, Manuel Henn, Matthias Buser, Kathrin Cirakoglu, Johannes Michel, Volkher Onuseit, Thomas Graf

Institut für Strahlwerkzeuge, University of Stuttgart, Germany

Increase of theoretical build rate in Laser Powder Bed Fusion through adapted laser intensity distribution (Industrial Talk) [104]

Gwenn Pallier¹, Adeline Orieux¹, Mahmoud Ziat¹, Niklas Praetzsch², Guillaume Labroille¹, Tim Lantzsch²

1: Cailabs; 2: Fraunhofer ILT

Parameter analysis to correlate density with surface roughness and productivity in Powder Bed Fusion – Laser Beam (PBF-LB) of AlSi10Mg (Invited Paper) [105]

Hong Tiat Tan¹, Elena Lopez¹, Alex Selbmann¹, David Karl², Lukas Stepien¹, Frank Brückner¹

1: Fraunhofer Institute for Material and Beam Technology IWS, Winterbergstr. 28, 01277 Dresden, Germany; 2: Chair of Advanced Ceramic Materials, Institute of Material Science and Technology, Technische Universität Berlin, Straße des 17. Juni 135, 10623 Berlin, Germany

Intelligent and connected process chain for laser beam melting (Industrial Talk) [106]

Fabian Riß, Nicolas Rolinck

TH Rosenheim, Germany

Implications of topology optimization on the ecological efficiency of the LPBF Process [107]

Christian Weiß¹, Bendix Beck¹, Constantin Leon Häfner^1,2

1: Fraunhoder Institute for Laser Technology ILT, Germany; 2: RWTH Aachen University – Chair for Laser Technology (LLT)

Identification of a descriptive beam size metric for complex beam shapes [108]

Lova Chechik^1,2, Michael Schmidt^1,2

1: Institute of Photonic Technologies (LPT), Friedrich-Alexander-Universität Erlangen-Nürnberg, Germany; 2: Erlangen Graduate School in Advanced Optical Technologies (SAOT), Erlangen, Germany

Laser power density distribution metrology to support emerging trends metal Additive Manufacturing [109]

David Deisenroth¹, Sergey Mekhontsev¹, Jordan Weaver¹, Samantha Webster²

1: Engineering Laboratory, National Institute of Standards and Technology, United States of America; 2: Materials Measurement Laboratory, National Institute of Standards and Technology, United States of America

Towards systematic characterization of ring-shaped laser beams (Industrial Talk) [110]

Johannes Roßnagel, Andreas Rudolf, Ruben Hartwig, Stefan Wolf, Reinhard Kramer

Primes GmbH, Max-Planck-Str. 2, 64319 Pfungstadt, Germany

Innovative All-Reflective Laser Beam Shaping for Material Processing based on Microstructured Mirrors (Industrial Talk) [111]

David Dung

Midel Photonics GmbH, Germany

Generating brick-like melt pools for Laser-Based Powder Bed Fusion using flexible beam shaping: a proof of concept on bead-on-plate single tracks [112]

Jonas Grünewald¹, Robin Prudlik^1,2, Vijaya Holla³, Philipp Kopp⁴, Richard Off¹, Thomas Stoll¹, Stefan Kollmannsberger⁴, Katrin Wudy¹

1: Professorship of Laser-based Additive Manufacturing, TUM School of Engineering and Design, Technical University of Munich, Freisinger Landstraße 52, 85748 Garching, Germany; 2: Oerlikon AM Europe GmbH, Freisinger Landstraße 52, 85748 Garching, Germany; 3: Chair of Computational Modeling and Simulation, TUM School of Engineering and Design, Technical University of Munich, Arcisstraße 21, 80333 München, Germany; 4: Chair of Data Science in Civil Engineering, Bauhaus University Weimar, Coudraystraße 13A, 99423 Weimar, Germany

Solidification of quaternary X5CrNi18-10 alloy after laser beam welding: A phase-field approach [113]

Muhammad Umar^1,2, Daniel Schneider^1,3, Britta Nestler^1,2,3

1: Institute for Digital Materials Science (IDM), Karlsruhe University of Applied Sciences, Moltkestraße 30, 76133 Karlsruhe, Germany; 2: The Institute for Applied Materials - Microstructure Modelling and Simulation (IAM-MMS), Karlsruhe Institute of Technology (KIT), Straße am Forum 7, 76131 Karlsruhe, Germany; 3: Institute of Nanotechnology (INT), Karlsruhe Institute of Technology (KIT), Hermann-von-Helmholtz-Platz 1, 76344 Eggenstein-Leopoldshafen, Germany

In-situ observation of end crater crack mechanisms in AA7075 during laser beam welding using synchrotron radiation [114]

Carola Forster^1,2, Markus Döring^1,2, Christoph Spurk³, Marc Hummel^3,4, Alexander Olowinsky⁴, Felix Beckmann⁵, Julian Moosmann⁵, Michael Schmidt^1,2

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-Str. 6, 91052 Erlangen, 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

Two-colour thermography for measurement of temperature distribution in laser beam welding [115]

Andrey Gumenyuk¹, Nasim Bakir¹, Michael Rethmeier^1,2,3

1: Bundesanstalt für Materialforschung und -prüfung BAM, Germany; 2: Technische Universität Berlin; 3: Fraunhofer Institute for Production Systems and Design Technology IPK

A step-by-step thermo-elastoplastic analysis of laser beam welding [116]

Philipp Alexander Hartwig¹, Lisa Scheunemann², Sonja Hellebrand¹, Jörg Schröder¹

1: Institute of Mechanics, Faculty of Engineering, University of Duisburg-Essen, Universitätsstraße 15, 45141 Essen, Germany; 2: Chair of Applied Mechanics, Department of Mechanical and Process Engineering, RPTU Kaiserslautern-Landau, Gottlieb-Daimler-Straße, 67653 Kaiserslautern, Germany

Controlling solidification cracks during remote laser welding of AA6005 alloy using Al2O3 alumina nanoparticles dispersed coating [117]

Mir-Hamza Khan¹, Sharhid Jabar¹, Qamar Hayat¹, Hiren Kotadia², Tahir Irfan Khan³, Pasquale Franciosa¹

1: Universtiy of Warwick, United Kingdom; 2: Liverpool John Moores University, United Kingdom; 3: The University of Bradford, Bradford, United Kingdom

Influence of the geometry of the cutting front at high feed rates on the burr formation behavior during laser cutting of thin sheet metal [118]

Sven Thomas^1,2, Tim Hesse¹, Nicolai Speker¹, Christian Hagenlocher³, Thomas Graf³

1: Trumpf Laser- und Systemtechnik AG, Germany; 2: Graduate School of Excellence advanced Manufacturing Engineering GSaME, Germany; 3: Institut für Strahlwerkzeuge IFSW, Germany

Describing the effect of local gas flow on keyhole and melt flow dynamics utilizing high-speed synchrotron X-ray imaging and numerical simulation [119]

Leander Schmidt¹, Raschid Azizy¹, Klaus Schricker¹, Christian Diegel¹, Yunhui Chen^2,3, Alexander Rack², Jean Pierre Bergmann¹

1: Technische Universität Ilmenau, Production Technology Group, Gustav-Kirchhoff-Platz 2, 98693 Ilmenau, Germany; 2: ESRF – The European Synchrotron, Structure of Materials Group - ID19, F-38043 Grenoble Cedex 9, France; 3: RMIT University, School of Engineering, Melbourne, Australia

Investigations of weld profiling and intermetallic formation in steel-to-aluminium laser welds: A multi-physics CFD approach using beam shaping [120]

Sharhid Jabar¹, Qamar Hayat¹, Ali Baghbani Barenji¹, Giovanni Chianese², Hiren R Kotadia³, Pasquale Franciosa¹, Dariusz Ceglarek¹

1: WMG, University of Warwick, Coventry CV4 7AL, UK; 2: Department of Industrial Engineering, University of Naples Federico II, P. le Tecchio, 80125 Naples, Italy; 3: School of Engineering, Liverpool John Moores University, Liverpool L3 3AF, UK

Numerical studies of magnetohydrodynamic technology in suppressing process porosity during laser beam welding [121]

Fan Yang¹, Xiangmeng Meng¹, Stephen Nugraha Putra¹, Marcel Bachmann¹, Michael Rethmeier^2,1,3

1: Bundesanstalt für Materialforschung und -prüfung (BAM), Unter den Eichen 87, 12205 Berlin, Germany; 2: Technische Universität Berlin, Institute of Machine Tools and Factory Management, Pascalstraße 8-9, 10587 Berlin, Germany; 3: Fraunhofer Institute for Production Systems and Design Technology, Pascalstraße 8-9, 10587 Berlin, Germany

Image Based In-Process Powder Stream Monitoring during Laser Metal Deposition for the Measurement of the Gravimetric Powder Mass Flow Rate and the Detection of Deviations in the Powder Stream [122]

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

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

Dimensional inspection of spur and helical gear teeth manufactured by Laser Metal Deposition [123]

Diego Montoya-Zapata¹, Igor Ortiz¹, Piera Alvarez¹, Francisco Cordovilla², Jose Luis Ocaña²

1: Ikergune A.I.E.; 2: UPM Laser Centre. Polytechnical University of Madrid

Influence of metal structure on mechanical characteristics in high-speed coating layer fabricated via Directed Energy Deposition [124]

Masayuki Hashimoto¹, Ryo Koike¹, Yasuhiro Kakinuma¹, Takanori Mori², Yoko Hirono², Yohei Oda²

1: Keio University, Japan; 2: DMG Mori Seiki

Material-tailored tool inserts for injection moulding using material extrusion multi-material Additive Manufacturing [125]

Johannes Vetter^1,2, Samuel Beneder¹, Michael Schmidt^1,2

1: Friedrich-Alexander-Universität Erlangen-Nürnberg, Institute of Photonic Technologies, Konrad-Zuse-Str. 3/5, 91052 Erlangen, Germany; 2: Erlangen Graduate School in Advanced Optical Technologies (SAOT), Paul-Gordan-Straße 6, 91052 Erlangen, Germany

The positive impact of laser beam shaping on modern manufacturing (Industrial Talk) [126]

Tyson L. Lowder, Dahv Kliner

nLIGHT, United States of America

Beam multiplication for powder-based metal Additive Manufacturing – approach, design and evaluation [127]

Florian Joachim Oskar Spieth¹, Thorsten Heeling¹, Hans-Christian Moehring²

1: Robert Bosch Manufacturing Solutions GmbH; 2: Institute for Machine Tools University Stuttgart

Fast spatial laser beam modulation for improved process control in Laser Powder Bed Fusion [128]

Thejaswi Tumkur Umanath, Gabe Guss, John D. Roehling, Kaila M. Bertsch, Guannan Tang, Anthony D Rollett, Manyalibo J. Matthews

Lawrence Livermore National Laboratory, United States of America

Quantitative analysis of spatter formation in Laser Powder Bed Fusion: unraveling the impact of beam shaping and multi-beam processing [129]

Marvin Kippels^1,3, Tim Lantzsch¹, Constantin Leon Häfner^1,2

1: Fraunhofer Institute for Laser Technology ILT, Germany; 2: Chair for Laser Technology LLT, Germany; 3: Research Campus for Digital Photonic Production, Germany

Laser Glass Deposition of single-mode glass fibers for the fabrication of chip-scale photonic circuits [130]

Florian Spengler, Sven-Olaf Waldhauer, Moritz Hinkelmann, Jörg Neumann, Stefan Kaierle, Dietmar Kracht

Laser Zentrum Hannover e.V., Germany

Enlarging the process window in absorber-free laser transmission welding of polymer foils using tailored laser intensity distribution [131]

Frederik Maiwald¹, Lea Kroth², Alexander Laskin³, Stefan Hierl¹, Michael Schmidt⁴

1: Laser Material Processing Laboratory, Ostbayerische Technische Hochschule Regensburg, Am Campus 1, 92331 Parsberg, Germany; 2: Evosys Laser GmbH, Felix-Klein-Straße 75, 91058 Erlangen, Germany; 3: AdlOptica GmbH, Rudower Chaussee 29, 12489 Berlin, Germany; 4: dInstitute of Photonic Technologies, Friedrich-Alexander-Universität Erlangen-Nürnberg, Konrad-Zuse-7 Straße 3/5, 91052 Erlangen, Germany

Advanced welding of high performance polymers for hydrogen technology applications (Industrial Talk) [132]

Lea Kroth, René Geiger

Evosys Laser GmbH, Germany

Laser remelting of regolith in vacuum: Reducing porosity for enhanced lunar resource utilization [133]

Tim Eismann¹, Tjorben Griemsmann¹, Christian Schröder¹, Nicole Emminghaus¹, Peter Weßels¹, Jörg Neumann¹, Jörg Hermsdorf¹, Benedict Grefen², Stefan Linke², Stefan Kaierle¹

1: Laser Zentrum Hannover e.V., Germany; 2: Technische Universität Berlin, Germany

Process strategies for optimizing the cooling behaviour of laser-welded Tailor Welded Blanks made of advanced high strength steels (AHSS) [134]

Josefine Lemke¹, Matthias Höfemann², Max Biegler¹, Michael Rethmeier^3,1,4

1: Fraunhofer Institute for Production Systems and Design Technology IPK, Pascalstrasse 8-9, 10587 Berlin, Germany; 2: Salzgitter Mannesmann Forschung GmbH, Eisenhüttenstrasse 99, 38239 Salzgitter, Germany; 3: Institute for Machine Tools and Factory Management (IWF), Technical University of Berlin, Strasse des 17. Juni, 10623 Berlin, Germany; 4: Federal Institute for Materials Research and Testing (BAM), Unter den Eichen 87, 12205 Berlin, Germany

Numerical analysis of melt flow shaping by means of beam shaping and ist effect on the thermal efficiency in laser welding [135]

Jonas Wagner^1,2, Christian Hagenlocher², Michael Sawannia², Alexander Ilin¹, Peter Stritt¹, Adina Dais¹, Reiner Ramsayer¹, Thomas Graf²

1: Robert Bosch GmbH, Corporate Research and Advance Engineering, Germany; 2: Institut für Strahlwerkzeuge (IFSW), University of Stuttgart, Germany

Investigating impact of zinc vapor jet on keyhole dynamics and fluid ejection from molten pool during remote laser welding of zinc-coated steel in zero-gap lap joint configuration [136]

Qamar Hayat¹, Pasquale Franciosa¹, Yi Gao², Dariusz Ceglarek¹, Claire Davis¹

1: WMG, The University of Warwick, Coventry, CV4 7AL, UK; 2: Tata Steel, R&D, Warwick Technology Centre, Coventry, CV4 7EZ, UK

Numerical study on the temperature characteristic of material absorptivity and its significance in high-power laser beam welding [137]

Stephen Nugraha Putra¹, Xiangmeng Meng¹, Fan Yang¹, Marcel Bachmann¹, Michael Rethmeier^2,1,3

1: Bundesanstalt für Materialforschung und -prüfung; 2: Technical University Berlin, Institute for Machine Tools and Factory Management; 3: Fraunhofer Institute for Production Systems and Design Technology

Impact of process parameters and gas atmospheres on density and microstructures of super duplex stainless steel produced by Laser Powder Bed Fusion [138]

Michele Vanini^1,2,3, Samuel Searle^1,3, Bey Vrancken^1,3, Kim Vanmeensel²

1: Dept. of Mechanical Engineering, KU Leuven, 3001 Leuven, Belgium; 2: Dept. of Materials Engineering, KU Leuven, 3001 Leuven, Belgium; 3: Flanders Make@KU Leuven

Interfacial analysis by optical monitoring of layer level multi-material parts fabricated via Powder Bed Fusion–Laser Beam [139]

Paolo Posa, Vito Errico, Andrea Angelastro, Sabina Luisa Campanelli

Politecnico di Bari, Italy

Results on the insertion of optical ficber sensors in components manufactured by Laser Powder Bed Fusion [140]

Quentin Pouille¹, Ayoub Ladaci¹, Hicham Maskrot¹, Sylvain Girard², Pascal Aubry¹

1: Service de Recherche sur les Matériaux et les procédés Avancés (SRMA), CEA, Université Paris-Saclay, F-91191, Gif-sur-Yvette, France; 2: Laboratoire Hubert Curien, France

Effect of laser defocusing on duplex stainless steels in Powder Bed Fusion (PBF-LB/M) [141]

Florian Nahr^1,2, Dominic Bartels^1,2, Moritz Schäfle³, Eckhard Kirchner³, Michael Schmidt^1,2

1: Institute of Photonic Technologies, Friedrich-Alexander-Universität Erlangen-Nurnberg, Konrad-Zuse-Str. 3/5, Erlangen 91052, Germany; 2: Erlangen Graduate School in Advanced Optical Technologies, Friedrich-Alexander-Universitat Erlangen-Nurnberg, Paul-Gordan-Str. 6, Erlangen 91052, Germany; 3: Technical University Darmstadt, Institute for Product Development and Machine Elements, Otto-Berndt-Straße 2, D-64287 Darmstadt, Germany

Efficient shielding gas supply for laser-based Powder Bed Fusion of metals (PBF - LB/M) [142]

Vadim Medvedev^1,2, Sebastian-Paul Kopp^1,2,3, Florian Nahr^2,3, Stephan Roth^1,2

1: Bayerisches Laserzentrum GmbH, Germany; 2: Erlangen Graduate School in Advanced Optical Technologies (SAOT), Germany; 3: Institute of Photonic Technologies (LPT), Germany

Deep penetration welding of brass with subsequent wire filling process by laser beam with combined core and ring beam [143]

Daniel Maiwald, Sarah Nothdurft, Jörg Hermsdorf, Stefan Kaierle

Laser Zentrum Hannover e.V., Germany

Dissimilar welding of Cu55Ni45 alloy with Ti-6Al-4V and 316L using a continuous 1030 nm Yb:YAG laser [144]

Nathan Haglon^1,2, Rodolphe Bolot¹, Iryna Tomashchuk¹, Alexandre Mathieu¹, Sébastien Lafaye²

1: ICB laboratory, France; 2: Laser Rhône Alpes

Deep penetration copper welding with high-power CW lasers (Industrial Talk) [145]

Annette Pricking¹, Elke Kaiser¹, Hicham Mathor¹, Klaus Albers¹, Tom Rentschler¹, Tim Hesse²

1: Trumpf Laser AG, Germany; 2: Trumpf Laser- und Systemtechnik AG, Germany

Reduction of distortion during laser beam welding by applying an in situ alloyed LTT effect and considering influencing factors [146]

Maximilian Gamerdinger, Simon Olschok, Uwe Reisgen

Welding and Joining Institute, RWTH Aachen University, Germany

Reducing capillary depth fluctuations in high-speed laser welding of stainless steel using multi-core laser technology [147]

Felix Zaiß¹, John Powell¹, Michael Haas^1,6, Johannes Wahl¹, Christian Diegel², Klaus Schricker², Jean Pierre Bergmann², Marc Hummel^3,4, Christoph Spurk³, Alexander Olowinsky⁴, Felix Beckmann⁵, Julian Moosmann⁵, Christian Hagenlocher¹, Thomas Graf¹

1: Institut für Strahlwerkzeuge (IFSW), University of Stuttgart, Germany; 2: Production Technology Group, Technische Universität Ilmenau, Germany; 3: RWTH Aachen University, Chair for Laser Technology LLT, Germany; 4: Fraunhofer Institute for Laser Technology ILT, Germany; 5: Institute of Materials Physics, Helmholtz-Zentrum HEREON, Germany; 6: Graduate School of Excellence advanced Manufacturing Engineering, University of Stuttgart, Germany

Ultra-short pulse laser ablation of metals: A comprehensive 3D simulation perspective enlightening novel process Insights [148]

Tobias Florian, Michele Buttazzoni, Constantin Zenz, Andreas Otto

TU Wien, Institute of Production and Engineering, Getreidemarkt 9/BA09, 1060 Wien, Austria

Development of micro-texture patterns of cemented carbide cutting tools to improve cutting performance [149]

Manuel Mazzonetto¹, Maria Rosaria Saffioti², Michela Sanguedolce², Vincenzina Siciliani¹, Riccardo Pelaccia¹, Giovanna Rotella³, Domenico Umbrello², Leonardo Orazi^1,4, Luigino Filice²

1: DISMI – Department of Science and Methods for Engineering, University of Modena and Reggio Emilia, Via Amendola 2, Reggio Emilia 42122, Italy; 2: DiMEG - Department of Mechanical, Energy and Management Engineering, University of Calabria, Via P. Bucci Cubo 45C, 87036 Rende, CS, Italy; 3: Department of Management, Finance and Technology, LUM University, S.S. 100 Km 18, 70010 Casamassima, BA, Italy; 4: EN&TECH – University of Modena and Reggio Emilia, Piazzale Europa 1, Reggio Emilia 42124, Italy

FemtoLux 30 - Industrial Femtosecond Laser With Flexible Burst Mode Operation (Industrial Talk) [150]

Deividas Andriukaitis, Tadas Bartulevičius

Ekspla, Savanoriu Ave. 237, Vilnius, Lithuania

Process design for the laser functionalization of the inner surface of metal pipes for superhydrophobic wetting and enhanced heat transfer [151]

Daniel Holder¹, Alexander Peter¹, Marc Kirsch², Sergio Cáceres², Christian Hagenlocher¹, Rudolf Weber¹, Volkher Onuseit¹, Rudi Kulenovic², Jörg Starflinger², Thomas Graf¹

1: Institut für Strahlwerkzeuge (IFSW), University of Stuttgart, Germany; 2: Institut für Kernenergetik und Energiesysteme (IKE), University of Stuttgart, Germany

Investigation of the detection limits of zinc and copper in brass alloys at water pressures of up to 600 bar using double-pulse LIBS [152]

Michelle Siemens¹, Marion Henkel², Diego Gonzalez², Benjamin Emde¹, Jörg Hermsdorf¹

1: Laser Zentrum Hannover e.V., Hollerithallee 8, 30419 Hannover, Germany; 2: Leibniz Institute for Plasma Science and Technology, Felix-Hausdorff-Straße 2, 17489 Greifswald, Germany

High-Speed Laser Melt Injection (Invited Talk) [153]

Philipp Warneke, Thomas Seefeld

BIAS - Bremer Institut für angewandte Strahltechnik GmbH, Germany

Laser color marking of stainless steel – Investigation of the fluence-dependent and thermal mechanisms in generating laser induced surface modifications [154]

Andreas Schkutow, Thomas Frick

Technische Hochschule Nürnberg Georg Simon Ohm, Germany

Analysis of the coupling efficiency of grain-oriented electrical steel using a fiber laser [155]

Peter Rauscher¹, Thomas Wanski¹, Achim Mahrle¹, Julius Zöllner¹, Stefan Müller², Thorsten Krenke², Andrés Fabián Lasagni^1,3, Jan Hauptmann¹

1: Fraunhofer IWS, Germany; 2: thyssenkrupp Electrical Steel GmbH, Germany; 3: Technical University Dresden, Germany

Surface treatment of additively manufactured stainless steel 316L lattice structures by plasma electrolytic polishing [156]

Jan Philipp Wahl¹, Sehoon An², Rüdiger Foest², Nicole Emminghaus¹, Jörg Hermsdorf¹

1: Laser Zentrum Hannover e.V., Hollerithallee 8, 30419 Hannover, Germany; 2: Leibniz-Institut für Plasmaforschung und Technologie e.V. (INP), Felix-Hausdorff-Straße 2, 17489 Greifswald, Germany

Enhancing stability in thin-walled part production with L-DED wire using an adaptive controller [157]

Volkher Onuseit, Steffen Boley, David Brinkmeier, Alexander Peter, Tobias Menold, Christian Hagenlocher, Thomas Graf, Andreas Michalowski

University of Stuttgart, Institute fuer Strahlwerkzeuge, Germany

CuNiSiCr alloy parametrization for defect-free DED-LB coating with conventional fibre laser [158]

Oihane Murua De la Mata¹, Sebastian Hartmann^2,3, Heinz-Ingo Schneider², Daniel Kormann², Jon Iñaki Arrizubieta Arrate¹, Aitzol Lamikiz Mentxaka¹

1: Department of Mechanical Engineering. University of the Basque Country UPV/EHU. Plaza Torres Quevedo 1, 48013 Bilbao, Spain; 2: Siemens AG DI MC AMF. Freyeslebenstraße 1, 91058 Erlangen, Germany; 3: Technical University of Munich, Materials Engineering of Additive Manufacturing, Munich, Germany

In situ monitoring of the DED-LB process for defect detection [159]

Aizpea Urresti, Oihane Murua, Jon Iñaki Arrizubieta, Aitzol Lamikiz

Department of Mechanical Engineering, University of the Basque Country UPV/EHU, Spain

Toward in-line crack detection and localization during metal additive manufacturing using laser-based air-coupled ultrasound sensors (Industrial Talk) [160]

Matthias Kettner¹, Ryan Sommerhuber¹, David Diego-Vallejo², Camilo Prieto Río², Clovis Alleaume², Jaume Nin³, Eloi Font³

1: XARION Laser Acoustics GmbH, Austria; 2: AIMEN Centro Tecnológico, Spain; 3: TMCOMAS, Spain

Single pass laser vacuum welding of thick steel plates using electromagnetic support (Invited Talk) [161]

Andrey Gumenyuk¹, Ömer Üstündag¹, Till Pelz¹, Benjamin Gerhards⁴, Markus Schleser⁵, Michael Rethmeier^1,2,3

1: Bundesanstalt für Materialforschung und -prüfung BAM, Berlin; 2: Technische Universität Berlin; 3: Fraunhofer Institute for Production Systems and Design Technology IPK, Berlin; 4: LaVaX GmbH, Herzogenrath; 5: Fachhochschule Aachen

Benchmarking wire-fed and autogenous laser beam welding to study the effect of Cu additions on weld integrity of 6060-T6 aluminium extrusion [162]

Mahsa Rasoulisamar¹, Pasquale Franciosa¹, Hiren R. Kotadia^1,2, Dariusz Ceglarek¹, Avinash Prabakar³

1: WMG, University of Warwick, Coventry, CV4 7AL, UK; 2: School of Engineering, Liverpool John Moores University, Liverpool, L3 3AF, UK; 3: Constellium University Technology Centre, Brunel University London, UK

Response of the melt pool and vapor capillary on dynamic beam shaping in the kHz regime during laser welding [163]

Michael Sawannia¹, Jonas Wagner², Peter Stritt², Reiner Ramsayer², Christian Hagenlocher¹, Thomas Graf¹

1: Institut für Strahlwerkzeuge (IFSW), University of Stuttgart, Germany; 2: Robert Bosch GmbH, Germany

Process simulation and development for laser beam welding with rotating bifocal optics [164]

Ecem Demir, Cemal Esen, Andreas Ostendorf

Applied Laser Technologies, Ruhr University Bochum, Germany

A novel methode to calibrate a fast IR-measurement system by utilizing the temperature dependence of oxide layers [165]

Alexander Kaiser, Max-Jonathan Kleefoot, Harald Riegel

Aalen University, Germany

Experimental investigation of density shift through glass surface modification with ultrashort pulsed laser [166]

Sebastian Funken¹, Max-Jonathan Kleefoot¹, Jiri Martan², Harald Riegel¹

1: Aalen University, LaserApplicationCenter (LAZ), Aalen, Germany; 2: University of West Bohemia, New Technologies Research Centre (NTC), Plzen, Czech Republic

Femtosecond reductive Laser Sintering under multiple focus conditions for rapid production of conductive copper layers [167]

Kay Bischoff¹, Cemal Esen², Ralf Hellmann¹

1: Applied Laser and Photonics Group, University of Applied Sciences Aschaffenburg, Würzburger Straße 45, 63743 Aschaffenburg, Germany; 2: Applied Laser Technologies, Ruhr University Bochum, Universitätsstraße 150, 44801 Bochum, Germany

Enhancing flexographic printing process with laser-induced microstructured printing forms for adjustable material transfer [168]

Alexander Wienke¹, Simon Stieß¹, Jürgen Koch¹, Peter Jäschke¹, Ludger Overmeyer^1,2, Stefan Kaierle^1,2

1: Laser Zentrum Hannover e.V.; 2: Leibniz Universität Hannover - Institut für Transport- und Automatisierungstechnik (ITA)

Laser hot-wire cladded gear preforms for the tailored forming process chain [169]

Kai Biester, Laura Budde, Nick Schwarz, Jörg Hermsdorf, Ludger Overmeyer

Laser Zentrum Hannover e.V. (LZH), Germany

Understanding the interplay of Zn vapours and formation of intermetallic compounds during remote laser welding of Zn-coated steel to aluminium in a zero-gap lap joint configuration [170]

Ali Baghbani Barenji¹, Pasquale Franciosa¹, Sharhid Jabar¹, Hirenkumar Kotadia^1,2, Dariusz Ceglarek¹, Kwasi Ayarkwa³, James Smith³

1: University of Warwick, United Kingdom; 2: Liverpool John Moores University, United Kingdom; 3: Jaguar Land Rover Limited, United Kingdom

Characterization of laser-induced surface structures of aluminum in an oxygen-free atmosphere [171]

Finn-Lennard Janthur^1,2, Sarah Nothdurft², Jörg Hermsdorf², Stefan Kaierle^1,2, Maik Szafarska³, René Gustus³, Ludger Overmeyer^1,2

1: Institut für Transport- und Automatisierungstechnik, Leibniz Universität Hannover; 2: Laser Zentrum Hannover e.V.; 3: Clausthaler Zentrum für Materialtechnik

Microstructure and mechanical properties of cobalt-chromium superalloys processed by high speed laser cladding [172]

Bernabe Carcel¹, Alfonso Carcel², Samuel Lopez¹

1: Tecnoclad Laser Solutions SL, Spain; 2: Universitat Politecnica de Valencia, Spain

DED-LB/M and in-situ alloying of a Co-Cr alloy with elemental powders: defect formation, microstructure and mechanical properties [173]

Marcel Stephan¹, Andreas Maier¹, Katja Tangermann-Gerk¹, Sebastian Frankl¹, Manuel Rühr², Stephan Roth^1,3, Michael Schmidt^1,3,4

1: Bayerisches Laserzentrum GmbH, Erlangen, Germany; 2: KSB SE & Co. KGaA, Pegnitz, Germany; 3: Erlangen Graduate School in Advanced Optical Technologies SAOT, Erlangen, Germany; 4: Institute of Photonic Technologies LPT (FAU Erlangen-Nürnberg), Erlangen, Germany

Study of Inconel718 deposition by high-speed Laser Cladding [174]

ANE SOLANA ARESTI, CARLOS SORIANO REYES, JOSU LEUNDA ARRIZABALAGA

TEKNIKER, Spain

Bronze-on-steel deposition with blue light high-speed Laser Cladding and IR Laser Cladding, properties and differences [175]

Francesco Rippa^1,2, Dominik Keller³, Hannes Freisse⁴, Noémie Martin², Timo Schudeleit¹, Markus Bambach²

1: inspire AG, Technoparkstrasse 1, 8005 Zurich, Switzerland; 2: Advanced Manufacturing Laboratory, ETH Zurich, Technoparkstrasse 1, 8005 Zurich, Switzerland; 3: Institute of Machine Tools and Manufacturing, ETH Zurich, Leonhardstrasse 21, 8092 Zurich, Switzerland; 4: Kugler Bimetal SA, Chemin du Château Bloch 17, 1219 Le Lignon/Geneva, Switzerland

Additive Manufacturing of Ti-6Al-4V with laser-wire DED and local shielding gas protection [176]

Alexander Barroi, Nick Schwarz, Jörg Hermsdorf, Stefan Kaierle

Laser Zentrum Hannover e.V., Germany

Investigation of bubble formation during femtosecond laser ablation in flowing liquids [177]

Christian Richard Günther¹, Jan Stefan Hoppius², Cemal Esen¹, Andreas Ostendorf¹

1: Ruhr University Bochum, Faculty of Mechanical Engineering, Applied Laser Technologies, 44801 Bochum, Germany; 2: Lidrotec GmbH, Lothringer Allee 2, 44805 Bochum, Germany

High speed X-ray imaging of bulge formation during laser percussion drilling with linear polarization in stainless steel [178]

Lukas Schneller^1,2, Manuel Henn¹, Christoph Spurk³, Daniel Holder¹, Alexander Olowinsky⁴, Felix Beckmann⁵, Julian Moosmann⁵, Christian Hagenlocher¹, Thomas Graf¹

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

Online determination of the hole depth during drilling with ultrashort laser pulses for depth-adapted drilling strategies [179]

Daniel Holder, Robin Klöpfer, Christian Hagenlocher, Rudolf Weber, Thomas Graf

University of Stuttgart, Germany

Ultrashort pulse Laser processing of complex designs on a roll to roll thanks to advanced synchronization of optical and mechanical parameters (Industrial Talk) [180]

Antoine Defroidmont¹, Marc Décultot¹, Alexandre Vendramini¹, Jérôme Patars¹, Anne Henrottin¹, Guillaume Szymczak²

1: LASEA, Belgium; 2: Lasea, France

Temporal power modulation in high power laser beam welding of round bars [181]

Jan Grajczak¹, Christian Nowroth², Jens Twiefel², Jörg Wallaschek², Sarah Nothdurft¹, Jörg Hermsdorf¹, Stefan Kaierle^1,3

1: Laser Zentrum Hannover e.V., Hollerithallee 8, 30419 Hannover, Germany; 2: Leibniz University Hannover, Institute of Dynamics and Vibration Research, An der Universität 1, 30823 Garbsen, Germany; 3: Leibniz University Hannover, Institute of Transport and Automation Technology, An der Universität 2, 30823 Garbsen, Germany

Speed up laser welding of battery busbars by applying new beam shaping approaches (Industrial Talk) [182]

Kai Fiechtner¹, Oliver Bocksrocker¹, Johannes Buehrle¹, Martin Stambke², Nicolai Speker¹, Tim Hesse¹

1: TRUMPF Laser- und Systemtechnik AG, Johann-Maus-Str. 2, 71254 Ditzingen, Germany; 2: TRUMPF Laser GmbH, Aichhalder Str. 39, 78713 Schramberg, Germany

Effect of concentric intensity distributions on spatter formation in full penetration welding of high-alloy steels [183]

Christian Diegel¹, Klaus Schricker¹, Leander Schmidt¹, Julius Löser¹, Felix Zaiß², Christian Hagenlocher², Thomas Graf², Jean Pierre Bergmann¹

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

Optical strain measurements during pulsed laser beam welding to improve the understanding of hot crack formation of EN AW-6082 aluminum alloy [184]

Marc Seibold, Jannik Bender, Klaus Schricker, Jean Pierre Bergmann

Technische Universität Ilmenau, Germany

Insight into keyhole and melt pool dynamics in laser welding of zinc-coated steels by means of high-speed synchrotron X-ray imaging [185]

Klaus Schricker¹, Peter Hellwig¹, Leander Schmidt¹, Christian Diegel¹, Marc Seibold¹, Hannes Friedmann¹, Fabian Fröhlich¹, Falk Nagel², Peter Kallage², Yunhui Chen^3,4, Herwig Requardt³, Alexander Rack³, Jean Pierre Bergmann¹

1: Technische Universität Ilmenau, Production Technology Group, Ilmenau, Germany; 2: COHERENT, Hamburg, Germany; 3: ESRF - The European Synchrotron, Grenoble, France; 4: RMIT, School of Engineering, Melbourne, Australia

Dependency of beam diameter on the resistance time of laser guards [186]

Uqba Aftab Alam¹, Rico Bühring², Matthias List², Christian Penninger¹, Hans-Joachim Krauß²

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

Particulate matter during Ultrashort-Pulse (USP) Laser processing [187]

Juergen Walter¹, Jan Duesing¹, Tanja Hansen², Stefan Schumacher³, Katharina Schwarz², Ana Maria Todea³, Detlef Ritter², Christof Asbach³, Peter Jaeschke¹, Stefan Kaierle^1,4

1: Laser Zentrum Hannover e.V. (LZH), Germany; 2: Fraunhofer-Institut für Toxikologie und Experimentelle Medizin (ITEM), Germany; 3: Institut für Umwelt & Energie, Technik & Analytik e.V. (IUTA), Germany; 4: Leibniz Universität Hannover, Institut für Transport- und Automatisierungstechnik (ITA), Germany

Selective lethal impact of blue laser radiation compared to high-power LED irradiation on naturally grown biofouling in the context of underwater biofouling cleaning [188]

Stanislav Zimbelmann¹, Mattes Hintmann², Markus Baumann³, Dieter Jahn², Rebekka Biedendieck², Benjamin Emde¹

1: Laser Zentrum Hannover e.V.; 2: Institute of Microbiology and Braunschweig Integrated Centre of Systems Biology (BRICS), Technische Universität Braunschweig; 3: Laserline GmbH, Fraunhofer Straße 5, 56218 Mülheim-Kärlich, Germany

FPGA real-time melt-pool temperature control in Directed Energy Deposition [189]

Jorge Sanchez-Medina, Zoé Jardon, Charles Snyers, Michaël Hinderdael, Patrick Guillaume, Dieter De Baere

Vrije Universiteit Brussel, Belgium

Optimization of hybrid Directed Energy Deposition through production and microstructure assessment [190]

Zoé Jardon¹, Guichuan Li², Kim Vanmeensel², Jorge Sanchez-Medina¹, Charles Snyers¹, Michaël Hinderdael¹, Dieter De Baere¹, Lincy Pyl³

1: Vrije Universiteit Brussel, Department of Mechanical Engineering; 2: KU Leuven, Department of Materials Engineering; 3: Vrije Universiteit Brussel, Department of Mechanics of Materials and Constructions

Localized defect frequencies for Laser Metal Deposition processes [191]

Julian Ulrich Weber¹, Claus Emmelmann²

1: Fraunhofer-Einrichtung für Additive Produktionstechnologien IAPT, Hamburg, Germany; 2: Institute of Laser and System Technologies (iLAS), Hamburg, Germany

Utilizing a Novel Femtosecond Flat-Top UV Laser for Precision Micromachining (Industrial Talk) [192]

Simas Butkus^1,2, Kamile Kasaciunaite¹, Mykolas Karpavicius¹

1: Light Conversion, Lithuania; 2: Vilnius University

High-speed synchrotron X-ray imaging of micro-hole formation during the ablation of grooves by ultrashort laser pulses [193]

Manuel Henn¹, Mathhias Buser¹, Lukas Schneller^1,2, Christoph Spurk³, 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

The development of laser cutting and drilling processes for thick Lithium Niobate wafers for electronic sensor applications [194]

Paul Butler-Smith^1,2,3, Amir Rabani¹, Vahid Nasrollahi³, Sundar Marimuthu², Stefan Dimov³, Christopher Mellor⁴, Marc Bird⁵

1: Advancete Ltd, Pine Ridge, Pound Lane, Knockholt TN12 7NE, UK; 2: The Manufacturing Technology Centre, Pilot Way, Ansty Park, Coventry, CV7 9JU, UK; 3: Department of Mechanical Engineering, School of Engineering, University of Birmingham, Edgbaston, Birmingham B15 2TT, UK; 4: School of Physics and Astronomy, University of Nottingham, University Park, Nottingham NG7 2RD, UK; 5: Baker Hughes Inc., 2001 Rankin Road, Houston, Texas, 77073 USA

Surface tension of falling droplets at high temperature [195]

Joerg Volpp

Luleå University of Technology, Sweden

Picosecond spaced pulse burst generation using a low repetition rate ultrafast fiber laser and spectral filtering [196]

Benedikt Beck^1,2, Michail Kromm³, Bernhard Schmauss^1,2

1: Institute of Microwaves and Photonics, Friedrich-Alexander–Universität Erlangen-Nürnberg, Cauerstr. 9, 91058 Erlangen, Germany; 2: Graduate School in Advanced Optical Technologies, Erlangen, Germany; 3: PHOTON ENERGY GmbH, Bräunleinsberg 10, 91242 Ottensoos, Germany

Effect of component geometry on the dynamic thermal field generated in the laser forming of AA6061-T6 sheet [197]

Yang Fei¹, Stuart Paul Edwardson¹, Ghazal Sheikholeslami³, Tong Zhou², Zheng Fang¹, Yin Tang¹, Walter Perrie¹, Geoff Dearden¹

1: Laser Group, School of Engineering, University of Liverpool, United Kingdom; 2: College of Science, Jiangsu University of Science and Technology, China; 3: School of Engineering, Canterbury Christ Church University, United Kingtom