Lasers in Manufacturing – LiM 2021

The LiM – Lasers in Manufacturing is the perfect platform for efficient knowledge transfer in the field of lasers and their applications.


About & Highlights


LiM—Lasers in Manufacturing

21–24 June 2021, CEST (Central European Summer Time) time schedule

The LiM - Lasers in Manufacturing is focused on the latest developments as well as future trends in the field of laser materials processing. The conference topics address anyone who is interested in the potential of lasers in manufacturing in theory and application.

It is the aim of the LiM to bring together international experts from research and industry in order to match scientific advances and economic needs for mutual benefit.

The LiM is organized by the German Scientific Laser Society (WLT) and a part of the World of Photonics Congress. The contact to the conference organizer is

We invite you to join LiM and be a part of our international community sharing ideas in inspiring talks and discussions.


The program features two plenary lectures, the presentation of the WLT Award and two joint sessions with CLEO/Europe.

Welcome and WLT Award Ceremony with Prize Winning Topic Presentation
Monday, 21 June 2021, 13:00 – 13:40 CEST

LiM Keynote Session
Monday, 21 June 2021, 14:00 – 15:00 CEST

Trends and prospective of additive manufacturing of large metal parts
Gleb Andreevich Turichin, SMTU, Peter the Great St.Petersburg Polytechnic University, Russia

Emission of X-rays during ultrashort pulse laser processing
Jörg Krüger, Bundesanstalt für Materialforschung und -prüfung (BAM), Germany

Ultrashort laser pulses have found their way into industrial material processing. They take advantage of the fact that moderate laser fluences can produce high quality material removal without significant thermal influence. The growing availability of powerful, highly repeating laser sources and an advanced laser beam control have favored these developments. However, the laser-matter interaction can be accompanied by the production of X-rays. Small doses per laser pulse can accumulate to significant dose rates at high laser pulse repetition rates which may exceed the permitted X-ray limits for human exposure. Consequently, a proper radiation shielding must be considered in laser material processing. The paper summarizes the current state of the art in the field of undesired generation of X-ray radiation during ultrashort pulse laser material processing in air.

Joint Session with CLEO/Europe: Micro Machining
Monday, 21 June 2021, 15:30 – 16:45 CEST

Joint Session with CLEO/Europe: Welding and Cutting
Monday, 21 June 2021, 15:30 – 16:45 CEST

Program schedule at a glance

Sessions on Tuesday, 22 June 2021, 10:00 – 16:00 CEST

  • Macro: Welding, Steel // Welding Simulation // Welding, Cu and Al // Beam Shaping
  • Additive Manufacturing: Directed Energy Deposition 1 // Systems Engineering // Innovations for Powderbed Fusion // Innovations
  • Micro: Ablation 1 + 2 // Ablation, Drilling and Cutting: System Technology // Ablation 3
  • Macro: Cutting 1 // Cutting 2 // System Technology and Process Control 1 + 2
  • Machine Learning for Laser Processing // Macro: Laser Processing for Electrical Components

Sessions on Wednesday, 23 June 2021: 10:00 – 16:00 CEST

  • Macro: Welding, Aluminum, Macro: Joining 1 + 2 + 3
  • Additive Manufacturing: Powderbed, Metal 1 + 2 // Directed Energy Deposition 2 // Non-metal
  • Micro: Ablation, Drilling and Cutting 1 + 2 // Drilling // Micro Machining
  • Micro: Surface Functionalization 1 + 2 + 3 + 4
  • Additive Manufacturing: Powderbed, Ti-6Al-4V // Process Innovations

Sessions on Thursday, 24 June 2021: 10:00 – 16:00 CEST

  • Micro: Joining (Welding and Brazing) 1 + 2 // Macro: Beam Oscillation // Welding, Dissimilar Materials
  • Additive Manufacturing: Directed Energy Deposition 3 + 4 // Powderbed, Copper // LIFT
  • Micro: System Technology and Process Control // Innovations // Processing of Transparent Materials 1 + 2
  • Macro: Surface Treatment // Micro: Surface Functionalization 5 + 6 + 7
  • Additive Manufacturing: Medical Applications // Fundamentals and Process Simulation
  • Closing Session

The complete conference program of LiM with all sessions, lectures and speakers can be found here:

Registration & digital platform

You would like to participate in LiM – Lasers in Manufacturing 2021?

Please use the following website to inform yourself about the conference fees and to register:


General Chair

  • Michael Rethmeier, Bundesanstalt für Materialforschung und -prüfung (BAM) Berlin, Germany

Macro Processing

  • Thomas Graf, IFSW, University of Stuttgart, Germany

Micro Processing

  • Michael Schmidt, LPT, FAU Erlangen-Nürnberg

Additive Manufacturing

  • Jean Pierre Bergmann, TU Ilmenau, Germany

About the organizer

The German Scientific Laser Society (WLT) supports all scientific aspects of laser technology. The main targets are coordination of scientific work, technology transfer and the stimulation of cooperation.

Find more information on the WLT website.


LiM Conference Office

Bayerisches Laserzentrum GmbH
Erlangen, Germany

Hans-Joachim Krauß | Stephanie Wiedenmann

Tel.: +49 9131 97790 -23 (-0)

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