Forum for Science, Industry and Business

Sponsored by:     3M 
Search our Site:

 

New laser processes for innovative lightweight design

20.04.2017

Lightweight design is one of the mostly progressive research areas involved in accomplishing the transition from fossil fuels to renewable energy sources, as well as the reduction of CO2 emissions. Innovative materials, such as carbon or glass fiber reinforced plastics (CFRP/GFRP), as well as metal foams, contribute to the successful implementation of the target set by the Federal Government. The Fraunhofer IWS has been researching in this field for many years to provide promising and affordable solutions for our industrial and research partners. One of these solutions is the laser-remote cutting technique.

Metal foams are the ideal basic material for innovative lightweight design. Combining low weight and high stability, they have a high surface-to-volume ratio and absorb energy and sound almost ideally. They have already been used in various industrial applications, such as battery technology, heat exchangers and filter systems. Cost-efficient cutting of foamed material into parts with a defined shape has been the greatest technological challenge thus far.


Laser-remote cut fiberglass reinforced plastic and defined surface matrix ablation

© Fraunhofer IWS Dresden


Laser-remote cut metallic foam made of aluminum (left) and steel (right)

© Fraunhofer IWS Dresden

The researchers at the Fraunhofer IWS have tackled this task with considerable success. They have achieved impressive results in terms of cutting velocity and quality in cutting open-porous metal foams to shape. »Enabling cutting velocities of up to 300 m/min in contour cutting and for material thicknesses of up to 20 mm, we are setting new stand-ards in metal foam processing« Robert Baumann, the head researcher, explains.

»The  ±30 µm component tolerances achieved thereby are the best available worldwide; with them, it is possible to create intricate geometries with wall thicknesses of a few hundred micrometers« Baumann continues. At the Fraunhofer IWS, the research team is able to apply the latest laser beam sources of different wavelengths, power and beam quality, as well as commercial optical devices for processing.

The IWS‘ lightweight design know-how was enhanced through comprehensive R&D projects with regard to the cutting of non-metals and CFRP and FRP materials. Laser-remote cutting of composite materials makes it possible to combine the highly efficient cutting process with extremely high cutting edge quality.

The current focus is on the development of the automatable process to rework cutting edges of holes in fiber-reinforced plastics. A barrier layer is useful in carbon fiber reinforced plastics primarily to avoid corrosion in the joint with metals used in lightweight design and to prevent weathering due to environmental impacts.

»The results achieved with a prototype-tool are of outstanding quality« says Michael Rose, expert in laser-based cutting to shape of fiber-reinforced plastics at the IWS. »We are convinced that these results will be widely implemented in industry in the near future.«

The Fraunhofer IWS Dresden will present its latest technologies for processing new and composite materials with / without lasers at the this year’s Hannover Messe trade show. The digitalization of production engineering via materials sci-ence is a central focus. Visit us at our booth in Hall 6 / A30, as well as in the new »Industrial Supply Forum« to be held in Hall 5 on Monday, 24 April 2017.

For additional information, please contact:

Fraunhofer-Institut für Werkstoff- und Strahltechnik IWS Dresden
01277 Dresden, Winterbergstr. 28, Germany

Robert Baumann
Phone: +49 351 83391-3423
Fax: +49 351 83391-3300
E-Mail: robert.baumann@iws.fraunhofer.de

Michael Rose
Phone: +49 351 83391-3539
Fax: +49 351 83391-3300
E-Mail: michael.rose@iws.fraunhofer.de

Public Relations
Dr. Ralf Jäckel
Phone: +49 351 83391-3444
Fax: +49 351 83391-3300
E-Mail: ralf.jaeckel@iws.fraunhofer.de

Internet:
www.iws.fraunhofer.de and
www.iws.fraunhofer.de/en/pressandmedia/press_releases.html

To keep pace with the pulse of research anytime, follow us at:
Twitter: @FraunhoferIWS
YouTube: Fraunhofer IWS

Weitere Informationen:

http://www.iws.fraunhofer.de
http://www.iws.fraunhofer.de/en/pressandmedia/press_releases.html

Dr. Ralf Jaeckel | Fraunhofer-Institut für Werkstoff- und Strahltechnik IWS

More articles from Trade Fair News:

nachricht Silver circuits on foil allow curved touchscreens
12.04.2017 | INM - Leibniz-Institut für Neue Materialien gGmbH

nachricht Steel piston production: Forging undercuts with novel forging tool
10.04.2017 | IPH - Institut für Integrierte Produktion Hannover gGmbH

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: A Quantum Low Pass for Photons

Physicists in Garching observe novel quantum effect that limits the number of emitted photons.

The probability to find a certain number of photons inside a laser pulse usually corresponds to a classical distribution of independent events, the so-called...

Im Focus: Microprocessors based on a layer of just three atoms

Microprocessors based on atomically thin materials hold the promise of the evolution of traditional processors as well as new applications in the field of flexible electronics. Now, a TU Wien research team led by Thomas Müller has made a breakthrough in this field as part of an ongoing research project.

Two-dimensional materials, or 2D materials for short, are extremely versatile, although – or often more precisely because – they are made up of just one or a...

Im Focus: Quantum-physical Model System

Computer-assisted methods aid Heidelberg physicists in reproducing experiment with ultracold atoms

Two researchers at Heidelberg University have developed a model system that enables a better understanding of the processes in a quantum-physical experiment...

Im Focus: Glacier bacteria’s contribution to carbon cycling

Glaciers might seem rather inhospitable environments. However, they are home to a diverse and vibrant microbial community. It’s becoming increasingly clear that they play a bigger role in the carbon cycle than previously thought.

A new study, now published in the journal Nature Geoscience, shows how microbial communities in melting glaciers contribute to the Earth’s carbon cycle, a...

Im Focus: First long-term stabile brain implant developed based on an anti-inflammatory coating

No sugar coating, but sweet nonetheless

Complex neurotechnological devices are required to directly select and influence brain waves inside the skull’s interior. Although it has become relatively...

All Focus news of the innovation-report >>>

Anzeige

Anzeige

Event News

Wenn der Computer das Gehirn austrickst

18.04.2017 | Event News

7th International Conference on Crystalline Silicon Photovoltaics in Freiburg on April 3-5, 2017

03.04.2017 | Event News

International Land Use Symposium ILUS 2017: Call for Abstracts and Registration open

20.03.2017 | Event News

 
Latest News

New laser processes for innovative lightweight design

20.04.2017 | Trade Fair News

Action Required: Invasive Fungus Is Killing European Salamanders

20.04.2017 | Life Sciences

Lasers measure jet disintegration

19.04.2017 | Physics and Astronomy

VideoLinks
B2B-VideoLinks
More VideoLinks >>>