Laser Technik Journal 2015/3 June

Laser Technik Journal Vol. 12 (3), 2015

Cover Picture

Editorial

Content

News

Products

Communications

Communications: Laser Technik Journal 3/2015

View Through the Laser Optics/One Arc, Two Wires and a Laser/Racing Technology from the 3D Printer/Solution for Cutting‐edge Modified Atmosphere Packaging/Same Quality at a Third of the Machining Time/Safe Contacts between Battery Cells by Laser Beam Welding/Short Laser Pulses for Material Deposition with Cold Spray Technology

  • Page 22-26

Market Report

Electronics and Automotive Applications Drive the Laser Market

The global market for laser systems for materials processing reached a volume of EUR 8.67 billion in 2014, up by 8 % versus 2013. The demand for laser materials processing systems has marked new record highs for four consecutive years (Fig. 1). Laser systems for macro and fine processing account for the major share of about 75 % of the market volume, while the remaining 25 % is allocated to laser systems for micro…

  • Arnold Mayer
  • Page 28-29

Laser Micro Machining

From Laser Marking to Ultra‐Short Pulsed Lasers

Material processing with laser radiation has a long tradition at Bosch. As early as in 1976, the first laser process was established in serial production. The application at that time was trimming of resistors on ceramic multi‐layers. A few years later, in 1981, laser welding started with a first application. Today, it is the most popular welding technology at Bosch with more than 500 laser systems installed. In 1985, laser…

  • Thomas Kiedrowski, Andreas Michalowski, Franziska Bauer
  • Page 30-34

Positioning Systems

Miniaturized Precision Stages with Piezo‐based Inertia Drives

There are a number of areas in automation technology where precise positioning is necessary. This particularly applies to laser technology. High‐precision beam steering and focusing is just as indispensable in ophthalmology as in super‐high resolution microscopy, interferometry or photonics where the objective is to align fibers precisely. At the same time, laser beam steering and focusing also requires the drive systems…

  • Steffen Arnold, Ellen‐Christine Reiff
  • Page 4-39

Process Control

Rugged Sensor Systems Lay a Solid Foundation for Welding Processes

Especially where processes are part of high‐volume production, the use of sensors is becoming ever more important. On the one hand, checks integrated into the process save time, since no additional work cycles are needed. On the other hand, certain processes are not possible at all without sensor systems. The devices used here have to be easy to integrate, simple in operation, and robust beyond question. …

  • Friedhelm Dorsch
  • Page 40-43

Additive Manufacturing

Two‐Photon Polymerization — A Versatile Microfabrication Tool

With additive manufacturing entering the consumer market and exciting the stock market, “3D printing” has become fashionable in society. Freedom in design as well as easy workflows are positive attributes associated with this umbrella terminology for a variety of fabrication techniques. 3D printing, or additive manufacturing gives designers previously unknown flexibilities and eliminates one of the most cost‐, time‐ and…

  • Fabian Niesler, Martin Hermatschweiler
  • Page 44-47

Plastics Welding

Radial Welding of Polymer Parts under Closed Loop Process Control

One of the key competences of Dilas Industrial Laser Systems is laser‐based plastics welding. The products for plastic welding range from 10 W output power up to 600 W and are suitable for this application because of beam quality, efficiency and dimensions. Laser‐based plastic welding is gaining market share not only for automotive parts but also for medical and consumer parts. In order to offer flexible and innovative…

  • Steffen Reinl
  • Page 48-52

Beam Shaping

Beam Shaping Optics for Process Acceleration

Within in the last years the average power of industrial pulsed laser systems is continuously increasing. However one can often not make efficient use of the available power, since the laser process limits the pulse energy which can be applied to the work piece. In particular for ultrashort pulsed laser (USP) processing the maximum pulse energy is further limited due to plasma shielding effects. For those reasons laser…

  • Christian Bischoff, Erwin Jäger, Udo Umhofer
  • Page 53-57

Laser Welding

Trends in BIW Aluminum Welding

Since 2001 diode lasers are in use in automotive series production and are still gaining importance. All major Original Equipment Manufacturers (OEMs) are using diode lasers today. Typical applications are welding and brazing of zinc coated steel, welding of aluminum and cutting. Due to significant weight saving potentials the OEMs put a special focus on aluminum welding applications.

  • Axel Luft, Tobias Stittgen
  • Page 58-62

Weld Process Inspection

Welding in remote and hazardous conditions presents a demanding problem to the robotic systems developer, in particular if the process needs to be monitored in‐situ. However, through proper application of a small suite of in‐house optics and photonics technologies, Hamburg specialist Schäfter+Kirchhoff already has the solution to hand.

  • Gregory Flinn, Gregor Federau, Bastian Lampert, Ulrich Oechsner
  • Page 63-65

Calendar

Meetings

Reviews / Previews

  • Page 68-70

Service

Buyers’ Guide

  • Page 85-88

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