Forum for Science, Industry and Business

Sponsored by:     3M 
Search our Site:

 

New Process Technology Unlocks Boost in Laser Productivity

18.05.2017

»The laser is a solution seeking a problem,« said Ted Maiman in 1964. Today, the laser has proven the best solution to an array of problems. At LASER World of PHOTONICS 2017 in Munich/Germany, the Fraunhofer Institute for Laser Technology ILT will be demonstrating how it is using process technology to enable efficient laser applications in a range of sectors, thereby driving forward Digital Photonic Production in the 21st century.

Over the past decades, new beam sources have taken the laser community by storm, with disk, fiber and diode lasers all making the transition into industrial manufacturing – and now ultrafast lasers, too. »With the most powerful lasers, it’s a case of working out how to bring that power to bear,« says Dr. Arnold Gillner of the Fraunhofer ILT in Aachen. »Right now, we need a thorough understanding of the processes at work and the right process technology if we are to open up new fields of application for the laser.«


Robust constructed optical parametric oscillator. This module will generate the final measuring wavelength in the MERLIN laser beam source.

Fraunhofer ILT, Aachen, Germany/ V. Lannert.


Fraunhofer Joint Stand »Customized Solutions« at LASER World of Photonics 2015 in Munich

Fraunhofer ILT, Aachen, Germany/ Klaus D. Wolf.

This is precisely what Fraunhofer ILT in Aachen is working on, in addition to its research of a range of beam sources. The focus of R&D activities is not only on efficiently distributing the laser beam, but in the first instance on developing a thorough process understanding – which can then be used to optimize whole machines and systems from simulation to full-scale production.

Laser Material Deposition Takes off

A deep understanding of the processes at work is at the heart of a new technique known as extreme high-speed Laser Material Deposition (known by its German acronym EHLA). Thomas Schopphoven explains the key element of the new process: »With EHLA, the laser melts the powder particles while they are still above the weld pool.« As a result, components can be coated 100 to 250 times faster than with conventional laser material deposition, with a minimum of heating.

The technique is intended to enable surfaces to be coated rapidly, offering a resource-efficient and cost-effective way of applying thin coats just tenths of millimeters thick. These coatings do not chip, unlike hard chrome plating, and the EHLA process is also more environmentally friendly.

Applying Microstructures over Large Areas Using Ultrashort Pulses

Lasers have long been used in the automotive industry for cutting and welding tasks. Now they have a new task: the application of microstructures to injection molds over large areas. Microstructures can be found all over the car, for instance in the cylinder, where they reduce fuel consumption, and in the panels of the interior, where they assure a high-quality finish.

Lasers with ultrashort pulses are very effective at applying these structures up to the micrometer range, but are let down by their pace. Experts in Aachen have come up with an elegant solution to the problem by combining two beam sources: a picosecond laser for the finest work, and a fast nanosecond laser for larger areas.

Known as eVerest, the project is sponsored by the German Federal Ministry of Education and Research, and aims to develop complete machine and system technology for the technique. This simpler solution would eliminate complex etching processes, and even pave the way for automation in a significant part of the process.

The Future is Digital

The laser industry is also looking more and more to Industry 4.0. In the future, industrial laser users will be seeking to fully exploit all their production process data.

In Aachen, systematic development of digitally connected laser production is in full swing in the form of the »Research Campus Digital Photonic Production« sponsored by the German Federal Ministry of Education and Research.

At LASER World of PHOTONICS 2017, to be held in Munich/Germany June 26-29, experts from the Photonics Cluster at the RWTH Aachen Campus will be demonstrating how they are already collaborating with numerous companies to shape the future of Digital Photonic Production.

Fraunhofer ILT at LASER 2017

At the joint Fraunhofer stand, A2.431, the experts from Aachen will be showcasing a range of new developments. These include the MERLIN project, for which they will be presenting a laser system for the measurement of methane concentrations in the atmosphere using satellites.

Also on show will be a new 3D printer for metal components. Offering a highly cost-effective model and a comprehensive range of consultancy services, the Aachen researchers will be targeting SMEs looking for a no-nonsense way to build up their expertise in additive manufacturing (in this instance, Selective Laser Melting in particular). At the LASER World of PHOTONICS practice-oriented application panels, our experts will be present with numerous lectures.


Weitere Informationen:

http://s.fhg.de/kSC

Petra Nolis | Fraunhofer-Institut für Lasertechnik ILT

More articles from Trade Fair News:

nachricht AchemAsia 2019 will take place in Shanghai
15.06.2018 | DECHEMA Gesellschaft für Chemische Technik und Biotechnologie e.V.

nachricht Insects supply chitin as a raw material for the textile industry
05.06.2018 | Fraunhofer-Institut für Grenzflächen- und Bioverfahrenstechnik IGB

All articles from Trade Fair News >>>

The most recent press releases about innovation >>>

Die letzten 5 Focus-News des innovations-reports im Überblick:

Im Focus: First evidence on the source of extragalactic particles

For the first time ever, scientists have determined the cosmic origin of highest-energy neutrinos. A research group led by IceCube scientist Elisa Resconi, spokesperson of the Collaborative Research Center SFB1258 at the Technical University of Munich (TUM), provides an important piece of evidence that the particles detected by the IceCube neutrino telescope at the South Pole originate from a galaxy four billion light-years away from Earth.

To rule out other origins with certainty, the team led by neutrino physicist Elisa Resconi from the Technical University of Munich and multi-wavelength...

Im Focus: Magnetic vortices: Two independent magnetic skyrmion phases discovered in a single material

For the first time a team of researchers have discovered two different phases of magnetic skyrmions in a single material. Physicists of the Technical Universities of Munich and Dresden and the University of Cologne can now better study and understand the properties of these magnetic structures, which are important for both basic research and applications.

Whirlpools are an everyday experience in a bath tub: When the water is drained a circular vortex is formed. Typically, such whirls are rather stable. Similar...

Im Focus: Breaking the bond: To take part or not?

Physicists working with Roland Wester at the University of Innsbruck have investigated if and how chemical reactions can be influenced by targeted vibrational excitation of the reactants. They were able to demonstrate that excitation with a laser beam does not affect the efficiency of a chemical exchange reaction and that the excited molecular group acts only as a spectator in the reaction.

A frequently used reaction in organic chemistry is nucleophilic substitution. It plays, for example, an important role in in the synthesis of new chemical...

Im Focus: New 2D Spectroscopy Methods

Optical spectroscopy allows investigating the energy structure and dynamic properties of complex quantum systems. Researchers from the University of Würzburg present two new approaches of coherent two-dimensional spectroscopy.

"Put an excitation into the system and observe how it evolves." According to physicist Professor Tobias Brixner, this is the credo of optical spectroscopy....

Im Focus: Chemical reactions in the light of ultrashort X-ray pulses from free-electron lasers

Ultra-short, high-intensity X-ray flashes open the door to the foundations of chemical reactions. Free-electron lasers generate these kinds of pulses, but there is a catch: the pulses vary in duration and energy. An international research team has now presented a solution: Using a ring of 16 detectors and a circularly polarized laser beam, they can determine both factors with attosecond accuracy.

Free-electron lasers (FELs) generate extremely short and intense X-ray flashes. Researchers can use these flashes to resolve structures with diameters on the...

All Focus news of the innovation-report >>>

Anzeige

Anzeige

VideoLinks
Industry & Economy
Event News

Leading experts in Diabetes, Metabolism and Biomedical Engineering discuss Precision Medicine

13.07.2018 | Event News

Conference on Laser Polishing – LaP: Fine Tuning for Surfaces

12.07.2018 | Event News

11th European Wood-based Panel Symposium 2018: Meeting point for the wood-based materials industry

03.07.2018 | Event News

 
Latest News

Leading experts in Diabetes, Metabolism and Biomedical Engineering discuss Precision Medicine

13.07.2018 | Event News

Research finds new molecular structures in boron-based nanoclusters

13.07.2018 | Materials Sciences

Algae Have Land Genes

13.07.2018 | Life Sciences

VideoLinks
Science & Research
Overview of more VideoLinks >>>