Forum for Science, Industry and Business

Sponsored by:     3M 
Search our Site:

 

Process control for fast laser processing of CFRP

08.08.2014

No suitable process control method for laser processing of fiber-reinforced plastics is currently available.

Therefore scientists at the Laser Zentrum Hannover e.V. (LZH) are now working together with the Sensortherm GmbH and Newson nv on an innovative double scanner processing head: In this processing head, the beam path of the processing laser is decoupled from the detection beam path used for temperature measurement.


The new measurement method will soon be able to accurately monitor thermally critical areas of the processing geometry. Photo: LZH


With the combined scanning head, the CFRP processing and the measurement can be decoupled. Illustration: LZH

This makes it possible to have spatially flexible and temporally high-resolution measurements during the processing of fiber-reinforced plastic.

The combined scanning head should make it possible to measure any point within or without the laser interaction zone, during the running process. In order to achieve this, the project partners decouple the laser beam path from the path of the high speed pyrometer.

In this process, the measurement beam of the pyrometer will be guided by separate scanner mirrors. These are especially tuned to the detection wavelength of the pyrometer.

Process control for fiber-reinforced plastic materials

Highly accurate online temperature measurement is especially important for laser processing of fiber-reinforced plastic materials, such as carbon fiber reinforced plastics (CFRP). With the combined scanning head and the associated measurement method, thermally critical areas in the processing geometry can be accurately monitored. This principle builds the foundation for active intervention in the process and its optimization.

While the LZH is developing the affiliated laser processes and the process control for welding and cutting of fiber-reinforced plastic materials, Newson nv, Berlare-Overmere, Belgium, is developing the actual combined scanning head.

An innovative, high speed pyrometer for different wavelength ranges is being adapted to this processing head by Sensortherm GmbH, Sulzbach/Taunus. Furthermore, Sensortherm is optimizing this pyrometer for laser transmission welding, and for laser cutting and material removal.

The use of the combined scanning head is not limited to laser processing of fiber-reinforced plastic materials, meaning that metals or glass materials, for example, can also be processed.

The European EraSME project A'Quilaco (Advanced online quality and process control for high speed laser machining of composites) started on January 1st, 2014, and will run for two years. In Germany, A'Quilaco is financially supported by the Federal Ministry for Economic Affairs and Energy (BMWi), and in Belgium by the IWT "agentschap voor Innovatie door Wetenschap en Technologie".

Weitere Informationen:

http://www.lzh.de/en/projects/a-quilaco - project website

Lena Bennefeld | Laser Zentrum Hannover e.V.

Further reports about: CFRP Energy LZH Laser materials measurement method plastic processing temperature wavelength

More articles from Materials Sciences:

nachricht Let the good tubes roll
19.01.2018 | DOE/Pacific Northwest National Laboratory

nachricht Method uses DNA, nanoparticles and lithography to make optically active structures
19.01.2018 | Northwestern University

All articles from Materials Sciences >>>

The most recent press releases about innovation >>>

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

Im Focus: Artificial agent designs quantum experiments

On the way to an intelligent laboratory, physicists from Innsbruck and Vienna present an artificial agent that autonomously designs quantum experiments. In initial experiments, the system has independently (re)discovered experimental techniques that are nowadays standard in modern quantum optical laboratories. This shows how machines could play a more creative role in research in the future.

We carry smartphones in our pockets, the streets are dotted with semi-autonomous cars, but in the research laboratory experiments are still being designed by...

Im Focus: Scientists decipher key principle behind reaction of metalloenzymes

So-called pre-distorted states accelerate photochemical reactions too

What enables electrons to be transferred swiftly, for example during photosynthesis? An interdisciplinary team of researchers has worked out the details of how...

Im Focus: The first precise measurement of a single molecule's effective charge

For the first time, scientists have precisely measured the effective electrical charge of a single molecule in solution. This fundamental insight of an SNSF Professor could also pave the way for future medical diagnostics.

Electrical charge is one of the key properties that allows molecules to interact. Life itself depends on this phenomenon: many biological processes involve...

Im Focus: Paradigm shift in Paris: Encouraging an holistic view of laser machining

At the JEC World Composite Show in Paris in March 2018, the Fraunhofer Institute for Laser Technology ILT will be focusing on the latest trends and innovations in laser machining of composites. Among other things, researchers at the booth shared with the Aachen Center for Integrative Lightweight Production (AZL) will demonstrate how lasers can be used for joining, structuring, cutting and drilling composite materials.

No other industry has attracted as much public attention to composite materials as the automotive industry, which along with the aerospace industry is a driver...

Im Focus: Room-temperature multiferroic thin films and their properties

Scientists at Tokyo Institute of Technology (Tokyo Tech) and Tohoku University have developed high-quality GFO epitaxial films and systematically investigated their ferroelectric and ferromagnetic properties. They also demonstrated the room-temperature magnetocapacitance effects of these GFO thin films.

Multiferroic materials show magnetically driven ferroelectricity. They are attracting increasing attention because of their fascinating properties such as...

All Focus news of the innovation-report >>>

Anzeige

Anzeige

Event News

10th International Symposium: “Advanced Battery Power – Kraftwerk Batterie” Münster, 10-11 April 2018

08.01.2018 | Event News

See, understand and experience the work of the future

11.12.2017 | Event News

Innovative strategies to tackle parasitic worms

08.12.2017 | Event News

 
Latest News

Let the good tubes roll

19.01.2018 | Materials Sciences

How cancer metastasis happens: Researchers reveal a key mechanism

19.01.2018 | Health and Medicine

Meteoritic stardust unlocks timing of supernova dust formation

19.01.2018 | Physics and Astronomy

VideoLinks
B2B-VideoLinks
More VideoLinks >>>