Laser Technik Journal 2016/1 January

Laser Technik Journal issue 1/2016 (Source: Wiley-VCH)

Laser Technik Journal issue 1/2016 (Source: Wiley-VCH)

Cover Picture: Laser Technik Journal 1/2016

The ten partners of the project LaSAAS develop a robust laser welding process for maritime manufacturing. (Source: LZH)

Editorial

Contents

News

Products

Communications

Communications: Laser Technik Journal 1/2016

Laser Process Simulation Available as App for First Time/Laser Process Simulation Available as App for FThick Metal Sheets for Light Ships Traceability

  • p. 12-13

Interview

From Retail Shop to Hightech Boutique

Company founder Eckhard Lessmüller and Head of Development Dr. Christian Truckenbrodt are heading Lessmüller Lasertechnik, LLT, as the company’s two Managing Directors. The enterprise they are running has followed a transformation path that led from a retail shop to a high technology boutique. And the pathway to get there was out of the common.

  • Anna‐Lena Idzko
  • p. 14-15

Material Processing

How to Improve Efficiency in USP Laser Micromachining

Highest quality in laser micromachining is obtained using ultrashort light pulses with energies slightly above ablation threshold. Together with very high pulse repetition rates and a new type of fast beam deflection technology, new pathways in laser micromachining have been opened. As examples, we show results of improved surface texturing and carbon‐fiber reinforced plastic material removal using this technology. …

  • Thomas Herrmann, Florian Harth, Bernhard Henrich, Johannes L’huillier, Melik Hajri
  • p. 16-19
Is it Cold Enough, Yet?

Ultrashort‐pulse (USP) lasers have, since the late 1990s, been an exciting technology looking for opportunities to gain mass market application in industrial materials processing. In recent years, a wide range of new products offering innovative architectures and higher pulse energy combined with high pulsing frequencies are finding many uses in regular manufacturing, where they make components with unprecedented quality,…

  • Roland Mayerhofer, Andrew B. May, Jürgen Serbin
  • p. 20-23
Laser Material Processing of Medical Titanium

Titanium is considered to be the most attractive metallic material for medical applications such as dental implants. Furthermore, it can be used to build up gas‐tight and sterile transport boxes in order to maintain the sterility of the implants during shipment. For this purpose laser processes were investigated and led to low‐impact and clean assembly of the transport boxes. The following article provides an overview of…

  • Andreas Patschger, Andreas Hopf, Michael Güpner, Jens Bliedtner
  • p. 24-27
Ultrashort‐pulse Laser Structuring of Thin‐film Solar Modules

UKP_signet-komplex_160With support from the German “Innovationsallianz Photovoltaik”, the joint research project T4nPV demonstrated ultrashort‐pulse all‐laser scribed CIGS solar modules with a 5.9 % (relative) higher electrical conversion efficiency compared to conventional, mechanically scribed reference modules. This remarkable efficiency gain was achieved by a reduction of the interconnection width down to approximately 100 μm, made possible…

  • Mawuli Ametowobla, Gabor Matthäus
  • p. 28-31

Laser Beam Sources

A New Concept in Picosecond Lasers

Research Alliance „Ultrashort pulse lasers for high precision processing”Over the last decade, mode‐locked laser sources in the ten picosecond pulse regime expanded into medical applications and high‐precision micro‐material machining. However, the complexity and the alignment sensitivity of picosecond lasers translated to higher cost and impeded a broader market entry. The goal of the iPLASE project was to develop a novel laser concept (Fig. 1) which is capable of generating sub‐10 picosecond…

  • Rico Hohmuth, Peer Burdack, Jens Limpert
  • p. 33-37

Laser Welding

Finding the Right Joining Technique

To join membranes tightly, different joining techniques are available. Which of them is best suited for a specific application depends on production requirements like quantity, cycle time, production range, total cost, and process monitoring. With its non‐contact energy input, small thermal and mechanical load, short joining times and high process stability, laser joining proved to be a practical method for joining…

  • Carsten Wenzlau
  • p. 38-41

Process Safety

Particle Filters for Laser Manufacturing

The manufacturing industry is characterised by a multitude of processes. From joining and separation technologies by means of laser, soldering and gluing, surface processing such as drilling, sintering and milling, and the utilisation of fluxes or production processes such as rapid prototyping — there is a wide range of various technologies. All these procedures have one thing in common: They generate harmful particles of…

  • Stefan Jakschik, Stefan Meißner, Steffen Blei
  • p. 42-45

Application Report

Laser Texturing

In laser texturing, a revolution is underway in the generation of surface structures and graining. In comparison to other procedures, this young technology offers significant advantages with respect to quality, process reliability, cost‐effectiveness and ecology. This field offers unimagined and largely unexploited possibilities for surface and product design.

  • p. 46-47

Calendar

Meetings

Service

Buyers’ Guide
  • p. 54-56

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