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 LZH showcases laser material processing of tomorrow at the LASYS 2018
22.05.2018 | Laser Zentrum Hannover e.V.

nachricht Achema 2018: New camera system monitors distillation and helps save energy
22.05.2018 | Technische Universität Kaiserslautern

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: Powerful IT security for the car of the future – research alliance develops new approaches

The more electronics steer, accelerate and brake cars, the more important it is to protect them against cyber-attacks. That is why 15 partners from industry and academia will work together over the next three years on new approaches to IT security in self-driving cars. The joint project goes by the name Security For Connected, Autonomous Cars (SecForCARs) and has funding of €7.2 million from the German Federal Ministry of Education and Research. Infineon is leading the project.

Vehicles already offer diverse communication interfaces and more and more automated functions, such as distance and lane-keeping assist systems. At the same...

Im Focus: Molecular switch will facilitate the development of pioneering electro-optical devices

A research team led by physicists at the Technical University of Munich (TUM) has developed molecular nanoswitches that can be toggled between two structurally different states using an applied voltage. They can serve as the basis for a pioneering class of devices that could replace silicon-based components with organic molecules.

The development of new electronic technologies drives the incessant reduction of functional component sizes. In the context of an international collaborative...

Im Focus: LZH showcases laser material processing of tomorrow at the LASYS 2018

At the LASYS 2018, from June 5th to 7th, the Laser Zentrum Hannover e.V. (LZH) will be showcasing processes for the laser material processing of tomorrow in hall 4 at stand 4E75. With blown bomb shells the LZH will present first results of a research project on civil security.

At this year's LASYS, the LZH will exhibit light-based processes such as cutting, welding, ablation and structuring as well as additive manufacturing for...

Im Focus: Self-illuminating pixels for a new display generation

There are videos on the internet that can make one marvel at technology. For example, a smartphone is casually bent around the arm or a thin-film display is rolled in all directions and with almost every diameter. From the user's point of view, this looks fantastic. From a professional point of view, however, the question arises: Is that already possible?

At Display Week 2018, scientists from the Fraunhofer Institute for Applied Polymer Research IAP will be demonstrating today’s technological possibilities and...

Im Focus: Explanation for puzzling quantum oscillations has been found

So-called quantum many-body scars allow quantum systems to stay out of equilibrium much longer, explaining experiment | Study published in Nature Physics

Recently, researchers from Harvard and MIT succeeded in trapping a record 53 atoms and individually controlling their quantum state, realizing what is called a...

All Focus news of the innovation-report >>>

Anzeige

Anzeige

VideoLinks
Industry & Economy
Event News

In focus: Climate adapted plants

25.05.2018 | Event News

Save the date: Forum European Neuroscience – 07-11 July 2018 in Berlin, Germany

02.05.2018 | Event News

Invitation to the upcoming "Current Topics in Bioinformatics: Big Data in Genomics and Medicine"

13.04.2018 | Event News

 
Latest News

In focus: Climate adapted plants

25.05.2018 | Event News

Flow probes from the 3D printer

25.05.2018 | Machine Engineering

Less is more? Gene switch for healthy aging found

25.05.2018 | Life Sciences

VideoLinks
Science & Research
Overview of more VideoLinks >>>