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:
Michael Botts | idw
CeGlaFlex project: wafer-thin, unbreakable and flexible ceramic and glass
25.04.2017 | Fraunhofer-Institut für Lasertechnik ILT
Additive manufacturing, from macro to nano
11.04.2017 | Laser Zentrum Hannover e.V.
More and more automobile companies are focusing on body parts made of carbon fiber reinforced plastics (CFRP). However, manufacturing and repair costs must be further reduced in order to make CFRP more economical in use. Together with the Volkswagen AG and five other partners in the project HolQueSt 3D, the Laser Zentrum Hannover e.V. (LZH) has developed laser processes for the automatic trimming, drilling and repair of three-dimensional components.
Automated manufacturing processes are the basis for ultimately establishing the series production of CFRP components. In the project HolQueSt 3D, the LZH has...
Reflecting the structure of composites found in nature and the ancient world, researchers at the University of Illinois at Urbana-Champaign have synthesized thin carbon nanotube (CNT) textiles that exhibit both high electrical conductivity and a level of toughness that is about fifty times higher than copper films, currently used in electronics.
"The structural robustness of thin metal films has significant importance for the reliable operation of smart skin and flexible electronics including...
The nearby, giant radio galaxy M87 hosts a supermassive black hole (BH) and is well-known for its bright jet dominating the spectrum over ten orders of magnitude in frequency. Due to its proximity, jet prominence, and the large black hole mass, M87 is the best laboratory for investigating the formation, acceleration, and collimation of relativistic jets. A research team led by Silke Britzen from the Max Planck Institute for Radio Astronomy in Bonn, Germany, has found strong indication for turbulent processes connecting the accretion disk and the jet of that galaxy providing insights into the longstanding problem of the origin of astrophysical jets.
Supermassive black holes form some of the most enigmatic phenomena in astrophysics. Their enormous energy output is supposed to be generated by the...
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...
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...
28.04.2017 | Event News
20.04.2017 | Event News
18.04.2017 | Event News
28.04.2017 | Medical Engineering
28.04.2017 | Earth Sciences
28.04.2017 | Life Sciences