Laser Technik Journal 4/2017 September

Laser Technik Journal 4/2017 (Source: Wiley)

Cover Picture: Laser Technik Journal 4/2017

Using Extreme High-Speed Laser Material Deposition “EHLA” to coat a piston rod eliminates drawbacks of hard chrome plating, thermal spraying, laser material deposition or other deposition welding techniques in an economical way (Source: Fraunhofer ILT, V. Lannert)


Actively Driving the Digital Change
  • Björn Kemper (Kemper)
  • Page 1






Networking with Partners Is Essential for Industry 4.0

How is Industry 4.0 developing further? How safe are the systems? And how will the systems become affordable for medium‐size companies? Björn Kemper, CEO of Kemper GmbH, the clean air technology expert, is already implementing equipment networking for his customers and is further extending digitalisation.

  • Pages 14-15 (Kemper)
Coherent and Rofin – Leading and Innovating Together

Paul Sechrist was appointed Coherent’s Executive Vice President, Worldwide Sales and Service in March 2011. He has over 28 years of experience with Coherent, including Senior Vice President and General Manager of Commercial Lasers and Components Business Group from October 2008 to March 2011, Vice President and General Manager of Specialty Laser Systems Business Group, Santa Clara from March 2008 to October 2008, and Vice…

  • Pages 16-18 (Coherent)

Market Report

Bright Future for the Key Technology Photonics

Light technologies provide tremendous potential for growth and innovation, as shown by two new studies. Strong core areas, impressive growth rates far above the gross domestic product and high expenditures on research and development indicate successful outlooks up to the year 2020.

  • Annika Löffler (VDMA), Ursula Tober (VDI)
  • Pages 19-21

Materials Processing

Ultrafast Material Processing with High‐Brightness Fiber Lasers

Machine tool builders demand cost reductions in many material laser processing applications like additive manufacturing, thin film ablation, surface structuring, cleaning, and foil cutting. All markets lead laser and optoelectronic component suppliers in the same way to improve the throughput as well as yield of available laser power. A feasible way of achieving cost reductions is to use existing machine components and…

  • André Streek (Laserinstitut Hochschule Mittweida), Michael Lee (IPG Laser)
  • Pages 22-25

Surface Processing

EHLA: Extreme High‐Speed Laser Material Deposition

Special coatings protect components against corrosion and wear. However, standard processes such as hard chrome plating, thermal spraying, laser material deposition or other deposition welding techniques have drawbacks. For example, as of September 2017, chromium(VI) coatings will require authorization. Researchers from the Fraunhofer Institute for Laser Technology ILT in Aachen as well as the RWTH Aachen University have…

  • Thomas Schopphoven, Andres Gasser, Gerhard Backes (Fraunhofer ILT)
  • Pages 26-29

Laser Cutting

Processing of Highly Reflective Materials

Fiber lasers have become more accepted for industrial laser applications all around the world. For many years, companies and universities have developed new generations of fiber lasers which compete with other laser types such as CO2 lasers. As the market for CO2 lasers shrinks, the solid‐state laser market expands due to advantages such as higher efficiency, high beam quality and the ability to process highly reflective material such…

  • Christian Keller (SPI Lasers)
  • Pages 30-33


The Incredible Additive Manufacturing Creates Movement

At a first glance, additive manufacturing seems to be a very simple manufacturing process. Nevertheless, many companies are not happy with their adaption of this new technology or are even overburdened by it. Often, we have to undisputedly agree with these companies. However, we can change their opinions straight away. The fascinating metal 3D printing nowadays even manages to print moving objects without needing assembly…

Laser Welding

Advances of OCT Technology for Laser Beam Processing

Optical coherence tomography (OCT) is an innovative sensor 3D measuring system for automated laser processing, in particular laser welding. It facilitates laser beam positioning, process monitoring, and quality control with the required precision and guarantees process flexibility, stability, and trace‐ability. To ensure smooth seam tracking for time‐ and cost‐effective line production, Lessmüller Lasertechnik OCT systems…

  • Nataliya Deyneka Dupriez, Alexander Denkl (Lessmüller Lasertechnik)
  • Pages 34-38
Next Generation of Jigless Robot Welding

Technicians around the globe are preoccupied with the concept of fully automatic, just‐in‐time welding of different components down to a batch size of 1 in unattended operation without time‐consuming set‐up. For an Austrian global market leader in formwork solutions this vision has already become lived reality.

  • Ralf Högel (for Doka / Yaskawa Europe)
  • Pages 39-41

Application Report

Generative Complete Machining in Finished‐Part Quality

Hoedtke GmbH & Co. KG has been regarded as innovation‐oriented service provider in the field of chipping and chipless metal processing. Since December 2014, the company has been threading another new path in production with a Lasertec 65 3D from DMG Mori: With the laser deposition welding and 5‐axis simultaneous machining, the machine combines additive and subtractive manufacturing processes, thus offering entirely new…

  • Pages 42-43 (Hoedtke / DMG Mori / Sauer Lasertec)
High Accuracy Laser Processing with a Rotating Beam

Ultrashort pulse lasers have been industrially available for a few years, and are increasingly being used in everyday production. They are very well suited for micro machining since they can be focused to an extremely small tool size, and due to contactless and athermal operation. But to compete with conventional production methods such as EDM, milling, punching, honing or grinding in micro‐drilling, cutting and turning,…

  • Pages 44-45 (GFH)
Efficient Machine Vision

Volkswagen in Emden, with over 264,000 vehicles produced and 9,700 employees on an area of 4,100,000 m2 (status 12/2015 source: Volkswagen), is the largest industrial employer to the west of Bremen and to the north of the Ruhr area. The 50th anniversary of the existence of the location was celebrated in 2014. The focus at the location is the production of the Passat B8. According to VW, with the current Passat, the…

  • Pages 46-47 (Plasmo)




Buyers’ Guide
  • Pages 54-56

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