Forum for Science, Industry and Business

Sponsored by:     3M 
Search our Site:

 

Technology transfer: Automated quality assurance of CFRP surfaces becomes industrial reality

06.03.2014

In collaboration with industrial partners, the Fraunhofer Institute for Manufacturing Technology and Advanced Materials IFAM in Bremen has developed a new quality assurance method for monitoring the surfaces of fiber reinforced plastics prior to adhesive bonding. Following successful technology transfer, this innovative method will be demonstrated at JEC Europe 2014 in Paris from 11-13 March. The new Bondinspect® method will be presented at the fair by Automation W+R GmbH (Stand N79, Pavillon 7/39).

Lightweight aircraft and cars are designed using components made of carbon fiber reinforced plastic (CFRP).


Change in droplet size at the boundary between a flame-treated (right) and non flame-treated (left) polypropylene blend.

(c) Fraunhofer IFAM

The manufacture of these CFRP components is carried out in metallic molds. Demolding is generally facilitated by treating the molds beforehand with a release agent.

However, some release agent adheres to the molded product and these residues must be removed manually prior to subsequent coating or bonding.

... more about:
»CFRP »ultrasonic atomizer

Contamination of CFRP surfaces by release agent residues impairs adhesion and hence the quality of bonded joints. So how can such residues be detected on components?

Automated monitoring of CFRP surfaces

Fraunhofer IFAM scientists have developed an automated aerosol wetting test suitable for industrial production. This wetting test efficiently inspects the surfaces of large components during the production process.

An ultrasonic atomizer first of all generates a defined water aerosol. This then creates a characteristic pattern of droplets on the component surface that is being inspected. A camera system records these droplets and shows them on a screen.

The droplet size distribution allows statements to be made about the wetting properties of the surface. By defining target values, for example, the cleaning and activation effect of a surface pretreatment step can be automatically monitored.

The advantage of the aerosol test is that large surfaces, for example fiber composite components for aircraft and wind turbines, can also be tested. The water aerosol dries within a very short time and leaves no residues, meaning the components can be further processed shortly after inspection.

Weitere Informationen:

http://www.ifam.fraunhofer.de

Martina Ohle | Fraunhofer-Institut

Further reports about: CFRP ultrasonic atomizer

More articles from Materials Sciences:

nachricht Reliable molecular toggle switch developed
30.03.2017 | Karlsruher Institut für Technologie (KIT)

nachricht Researchers shoot for success with simulations of laser pulse-material interactions
29.03.2017 | DOE/Oak Ridge National Laboratory

All articles from Materials Sciences >>>

The most recent press releases about innovation >>>

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

Im Focus: A Challenging European Research Project to Develop New Tiny Microscopes

The Institute of Semiconductor Technology and the Institute of Physical and Theoretical Chemistry, both members of the Laboratory for Emerging Nanometrology (LENA), at Technische Universität Braunschweig are partners in a new European research project entitled ChipScope, which aims to develop a completely new and extremely small optical microscope capable of observing the interior of living cells in real time. A consortium of 7 partners from 5 countries will tackle this issue with very ambitious objectives during a four-year research program.

To demonstrate the usefulness of this new scientific tool, at the end of the project the developed chip-sized microscope will be used to observe in real-time...

Im Focus: Giant Magnetic Fields in the Universe

Astronomers from Bonn and Tautenburg in Thuringia (Germany) used the 100-m radio telescope at Effelsberg to observe several galaxy clusters. At the edges of these large accumulations of dark matter, stellar systems (galaxies), hot gas, and charged particles, they found magnetic fields that are exceptionally ordered over distances of many million light years. This makes them the most extended magnetic fields in the universe known so far.

The results will be published on March 22 in the journal „Astronomy & Astrophysics“.

Galaxy clusters are the largest gravitationally bound structures in the universe. With a typical extent of about 10 million light years, i.e. 100 times the...

Im Focus: Tracing down linear ubiquitination

Researchers at the Goethe University Frankfurt, together with partners from the University of Tübingen in Germany and Queen Mary University as well as Francis Crick Institute from London (UK) have developed a novel technology to decipher the secret ubiquitin code.

Ubiquitin is a small protein that can be linked to other cellular proteins, thereby controlling and modulating their functions. The attachment occurs in many...

Im Focus: Perovskite edges can be tuned for optoelectronic performance

Layered 2D material improves efficiency for solar cells and LEDs

In the eternal search for next generation high-efficiency solar cells and LEDs, scientists at Los Alamos National Laboratory and their partners are creating...

Im Focus: Polymer-coated silicon nanosheets as alternative to graphene: A perfect team for nanoelectronics

Silicon nanosheets are thin, two-dimensional layers with exceptional optoelectronic properties very similar to those of graphene. Albeit, the nanosheets are less stable. Now researchers at the Technical University of Munich (TUM) have, for the first time ever, produced a composite material combining silicon nanosheets and a polymer that is both UV-resistant and easy to process. This brings the scientists a significant step closer to industrial applications like flexible displays and photosensors.

Silicon nanosheets are thin, two-dimensional layers with exceptional optoelectronic properties very similar to those of graphene. Albeit, the nanosheets are...

All Focus news of the innovation-report >>>

Anzeige

Anzeige

Event News

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

20.03.2017 | Event News

CONNECT 2017: International congress on connective tissue

14.03.2017 | Event News

ICTM Conference: Turbine Construction between Big Data and Additive Manufacturing

07.03.2017 | Event News

 
Latest News

'On-off switch' brings researchers a step closer to potential HIV vaccine

30.03.2017 | Health and Medicine

Penn studies find promise for innovations in liquid biopsies

30.03.2017 | Health and Medicine

An LED-based device for imaging radiation induced skin damage

30.03.2017 | Medical Engineering

VideoLinks
B2B-VideoLinks
More VideoLinks >>>