Forum for Science, Industry and Business

Sponsored by:     3M 
Search our Site:

 

New Laser Cutting Processes for CFRP- Materials

02.03.2010
The Laser Zentrum Hannover e.V. (LZH) is working on a new laser cutting process for CFRP materials, which compensates for thermal damage occurring at the cutting edges, such as exposed carbon fibers and evaporated or melted polymatrix. Following the laser cutting, the cut kerf is coated with a powdery filler material which melts and thus seals the edge, making it a high-quality cut.

Carbon fiber reinforced polymers (CFRP) are being increasingly used as a construction material in the automotive and aerospace industry, as well as for wind energy and even in the field of sports and leisure activities.

Conventional machining processes such as mechanical and water jet cutting are no longer able to meet the demands for increased atomization, a higher cutting speed and lower tool wear. By using "light" for cutting, laser processing can meet these demands, leading to an increase in productivity.

The Laser Zentrum Hannover e.V. (LZH) is working on a new laser cutting process for CFRP materials, which compensates for thermal damage occurring at the cutting edges, such as exposed carbon fibers and evaporated or melted polymatrix. Following the laser cutting, the cut kerf is coated with a powdery filler material which melts and thus seals the edge, making it a high-quality cut. To achieve the high cutting speeds of several meters per minute, ever for thicker laminates of over 3 mm, high-power lasers with maximum beam quality must be used. Thus, within the framework of this project, the LZH will be using a 6 kW- fiber laser system for this process.

A significant boost in the use of lasers for cutting CRFP is expected from this project. Also, improved profitability and production volume increase for CFRP-materials, as requested by the industry, is a goal of this project.

The project is sponsored by the German Federal Ministry of Education and Research (BMBF) within the framework of the funding program Optical Technologies. Project management is carried out by the VDI-Technologiezentrum GmbH.

Contact:
Laser Zentrum Hannover e.V. (LZH)
Michael Botts
Hollerithallee 8
D-30419 Hannover
Tel.: +49 511 2788-151
Fax: +49 511 2788-100
E-Mail: m.botts@lzh.de
The Laser Zentrum Hannover e.V. (LZH) carries out research and development in the field of laser technology and is supported by the Ministry of Economic Affairs, Labour and Transport of the State of Lower Saxony (Niedersächsisches Ministerium für Wirtschaft, Arbeit und Verkehr).

Michael Botts | idw
Further information:
http://www.lzh.de

More articles from Process Engineering:

nachricht Quick, Precise, but not Cold
17.05.2017 | Fraunhofer-Institut für Lasertechnik ILT

nachricht A laser for divers
03.05.2017 | Laser Zentrum Hannover e.V.

All articles from Process Engineering >>>

The most recent press releases about innovation >>>

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

Im Focus: Can we see monkeys from space? Emerging technologies to map biodiversity

An international team of scientists has proposed a new multi-disciplinary approach in which an array of new technologies will allow us to map biodiversity and the risks that wildlife is facing at the scale of whole landscapes. The findings are published in Nature Ecology and Evolution. This international research is led by the Kunming Institute of Zoology from China, University of East Anglia, University of Leicester and the Leibniz Institute for Zoo and Wildlife Research.

Using a combination of satellite and ground data, the team proposes that it is now possible to map biodiversity with an accuracy that has not been previously...

Im Focus: Climate satellite: Tracking methane with robust laser technology

Heatwaves in the Arctic, longer periods of vegetation in Europe, severe floods in West Africa – starting in 2021, scientists want to explore the emissions of the greenhouse gas methane with the German-French satellite MERLIN. This is made possible by a new robust laser system of the Fraunhofer Institute for Laser Technology ILT in Aachen, which achieves unprecedented measurement accuracy.

Methane is primarily the result of the decomposition of organic matter. The gas has a 25 times greater warming potential than carbon dioxide, but is not as...

Im Focus: How protons move through a fuel cell

Hydrogen is regarded as the energy source of the future: It is produced with solar power and can be used to generate heat and electricity in fuel cells. Empa researchers have now succeeded in decoding the movement of hydrogen ions in crystals – a key step towards more efficient energy conversion in the hydrogen industry of tomorrow.

As charge carriers, electrons and ions play the leading role in electrochemical energy storage devices and converters such as batteries and fuel cells. Proton...

Im Focus: A unique data centre for cosmological simulations

Scientists from the Excellence Cluster Universe at the Ludwig-Maximilians-Universität Munich have establised "Cosmowebportal", a unique data centre for cosmological simulations located at the Leibniz Supercomputing Centre (LRZ) of the Bavarian Academy of Sciences. The complete results of a series of large hydrodynamical cosmological simulations are available, with data volumes typically exceeding several hundred terabytes. Scientists worldwide can interactively explore these complex simulations via a web interface and directly access the results.

With current telescopes, scientists can observe our Universe’s galaxies and galaxy clusters and their distribution along an invisible cosmic web. From the...

Im Focus: Scientists develop molecular thermometer for contactless measurement using infrared light

Temperature measurements possible even on the smallest scale / Molecular ruby for use in material sciences, biology, and medicine

Chemists at Johannes Gutenberg University Mainz (JGU) in cooperation with researchers of the German Federal Institute for Materials Research and Testing (BAM)...

All Focus news of the innovation-report >>>

Anzeige

Anzeige

Event News

Plants are networkers

19.06.2017 | Event News

Digital Survival Training for Executives

13.06.2017 | Event News

Global Learning Council Summit 2017

13.06.2017 | Event News

 
Latest News

Quantum thermometer or optical refrigerator?

23.06.2017 | Physics and Astronomy

A 100-year-old physics problem has been solved at EPFL

23.06.2017 | Physics and Astronomy

Equipping form with function

23.06.2017 | Information Technology

VideoLinks
B2B-VideoLinks
More VideoLinks >>>