Cover Picture: Laser Technik Journal 3/2013

Eco‐efficiency Boosts Growth of Laser Applications in Manufacturing

• C. Emmelmann
• Seite 1-1

Contents: Laser Technik Journal 3/2013

• Seite 2-3

News: Laser Technik Journal 3/2013

• Seite 4-10

Laser Market at Record High

The global market for laser materials processing systems reached a new record high of Euro 7.9 billion in 2012. Measured in Euros the market grew 9 % over 2011, while measured in US‐dollars the market grew only by 1 %.

• Arnold Mayer
• Seite 12-14

Products: Laser Technik Journal 3/2013

• Seite 15-22

Company Profiles: Laser Technik Journal 3/2013

• Seite 23-28

High‐Brilliance, Fiber‐Coupled, Turn‐Key Diode Laser System

Based on an optimized chip design suitable for efficient fiber coupling, socalled tailored mini‐bars, DILAS has introduced a new platform of fiber‐coupled diode laser modules. In the following, we describe the basic ideas of the concept, together with the integration of such fiber‐coupled diode laser modules into a new series of turn‐key diode laser systems.

• Jörg Neukum
• Seite 29-31

Black Marking and Smooth Surfaces

During the past 30 years, laser marking has become an established industry, facing both significant growth rates and the related consequences such as concentration and specialization.

• Ulrich Ofer
• Seite 32-34

High‐power Full Penetration Welding Behavior

Due to their different physical beam characteristics, there are fundamental differences in the process behavior of CO2 lasers and solid‐state lasers during deep penetration welding. High‐quality full penetration welds can be achieved in thick sheet metal with both beam sources. However, the beam sources differ in regards to productivity, process stability, and seam quality depending on the material being welded.

• Volker Romminger, Patrick Haug, Nicolai Speker, Marco Holzer
• Seite 36-40

New Systems for Laser Cladding

Components used in the manufacture of steel strip work in exceptionally aggressive environments and have to withstand service at high temperatures in corrosive atmospheres under mechanical wear and frequent and heavy impact loading. Conventionally, components that are subject to high wear or corrosion have often been manufactured from rich chemistry steels or hardfaced using submerged arc clad martensitic stainless steels...

• Sam Lester, Nick Longfield, Justin Griffiths, John Cocker, Christian Staudenmaier, Gary Broadhead
• Seite 41-43

Find and Irradiate — Lasers Used for Weed Control

Due to their outstanding properties, interest in lasers has increased greatly in precision agriculture as a potential tool for non‐chemical weed control. unwanted plants have a negative effect on crop growth, especially in close surroundings. Weed control based on mechanical (e.g. hoeing) or thermal (flaming) methods do not meet the precision requirements to preserve crop plants. An innovative combination of image...

• Stefan Kaierle, Christian Marx, Thomas Rath, Michael Hustedt
• Seite 44-47

Three Instruments — One Result

Measuring the propagation parameters of a laser beam is an important method of understanding the quality of the laser beam and predicting its performance for various laser applications. For this reason, it is one of the major specifications required by laser users and reported by laser manufacturers. There are three different types of instruments commercially available, and in this article we will explain the differences...

• Allen Cary
• Seite 48-50

Ultrafast Laser Systems: Fiber or Bulk Solutions?

Fiber technology has become well established in ultrafast laser technology. Specific strengths of that approach are quite beneficial in some cases, while serious limitations still favor bulk solutions in other cases. The article discusses various technical issues both for mode‐locked oscillators and ultrafast amplifiers.

• Rüdiger Paschotta
• Seite 51-55

Calendar 2013/2014

• Seite 56-56

Preview 2013

• Seite 57-60

Buyers′ guide

• Seite 61-64