Laser Technik Journal 2/2018 April

Laser Technik Journal 2/2018 (Source: Wiley)

Cover Picture

Cover Picture: Laser Technik Journal 2/2018

Fisba designs and manufactures custom micro optics for laser diodes, which include FACs, SACs, SAC arrays and FBTs. For diode lasers to reach their full potential, output beams must be shaped to optimize optical quality. Fisba’s components enable this precise collimation and beam shaping.
www.fisba.com

Editorial

Digital Photonic Production
  • Reinhart Poprawe (Fraunhofer ILT)
  • Page 1

Contents

News

Products

Company Profiles

AKL‐Program

Market Report

A Great Year for the Industrial Laser Business in the USA

The global industrial laser business in 2017 experienced a record year in terms of revenues, topping the 4.3 billion dollars mark. From the end of the Great Recession (officially June 2009), according to Industrial Laser Solutions (ILS), market revenues grew at a 14.95 % CAGR for a 250 % increase over end of recession values (Fig. 1). Leading this charge were fiber laser revenues which rose at an exceptional 37.38 % CAGR to…

  • David A. Belforte (Belforte Associates)
  • Pages 30-31

Trends in Manufacturing

Choosing the Right Laser for Microelectronic Packaging Tasks

The size of semiconductor dies and packaged devices continues to shrink in order to support more sophisticated and compact tablets, phones, watches and other wearables. This trend creates greater opportunities for lasers because of their unique ability to perform diverse materials processing tasks with high precision and minimal heat‐affected zone (HAZ). As a result, lasers are finding increased use in wafer dicing, package…

  • Dirk Müller (Coherent)
  • Pages 32-35

Surface Processing

“Cleaning with Light”

The laser‐based surface pretreatment of industrial components and surfaces is often an economical alternative to conventional component cleaning. In addition to its low energy consumption, the media‐free process does not require any chemicals or abrasives, which is why “cleaning with light” is particularly sustainable and environmentally friendly.

  • Edwin Büchter (Clean Laser)
  • Pages 36-39

Laser Welding

Insight into the Process

Despite the steadily improving methods for process diagnostics in laser beam welding the fluid dynamics within the weld pool responsible for defects like pore formation, humping or spiking are not understood sufficiently. The multiphysical simulation model presented within this contribution is not only a powerful tool to reliably predict processing results like weld depth and width or temperature distributions but also…

  • Andreas Otto, Rodrigo Gómez Vázquez (TU Wien), Udo Hartel (Bosch)
  • Pages 40-45

Ultrashort Pulse Lasers

Pulsed Lasers for Industrial Applications

Material processing with ultrashort pulses provides the user with a variety of benefits. The significantly reduced heat affected zone and the ability to machine numerous different materials are the most striking features. The key for commercial viability of industrial ultrashort‐pulse lasers is long‐term reliability in an industrial environment in combination with sufficient parameter flexibility in terms of different pulse…

  • Florian Jansen, Aleksander Budnicki, Dirk Sutter (Trumpf)
  • Pages 46-49
Multi‐100‐Watt Femtosecond Laser Perspectives

Femtosecond lasers are today delivering output powers of several hundred watts. The challenge is to translate the available power into high throughput micromachining by combining the laser with fast scanning systems or multiple beam generation. Free triggering of the laser output pulses with good precision (also known as “pulse on demand”) is particularly useful for exploiting advanced functionalities of processing tools. …

  • Clemens Hönninger, Eric Audouard (Amplitude Systèmes)
  • Pages 50-53

Additive Manufacturing

Process Monitoring of Laser Beam Melting

Powder bed laser melting (PBLM) is increasingly applied for series production in automotive, medicine and aerospace. Main drivers are extended design capabilities and steadily decreasing production costs. Nevertheless, process stability remains one central challenge for general industrial implementation. This challenge may be tackled by extensive process control, based on coaxial thermal emissivity sensing or high‐speed…

  • Yves Hagedorn, Felix Pastors (Aconity3D)
  • Pages 54-57
The Value of Metal Additve Manufacturing with Diode Lasers

Laser powder bed fusion (LPBF) is an established additive manufacturing (AM) process for the production of metal components. Despite its great potential, the technology has not yet arrived in many small and medium enterprises. The article shows the potential of metal 3D printing with diode lasers to increase the customer value of market accessibility.

  • Mirjam Tabea Knothe (LMI – Laser Melting Innovations)
  • Pages 58-60

Laser Cutting

CFRP is Demanding – Also on Laser Cutting

Composite materials as glass fiber and carbon fiber reinforced plastics (GFRP and CFRP) are among the most promising materials to achieve the demanding goals of lightweight design. In competition with other materials as high‐strength steel or light metals, the market forecast for carbon fiber reinforced materials predicts a continuous growth around ten percent per year as it was achieved in the recent years [1]. This…

  • Frank Schneider, Dirk Petring (Fraunhofer ILT)
  • Pages 61-65

Calendar

Meetings

Service

Buyers’ Guide
  • Pages 70-72

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