Forum for Science, Industry and Business

Sponsored by:     3M 
Search our Site:

 

A new aluminium alloy to improve aircraft brakes

10.06.2003


Aircraft wheel and brake assemblies can become very hot during braking as the plane’s kinetic energy is transformed into heat by brake pads and dissipated into the surrounding components. The wheel, the tyres, the piston that clamps the pads into place and the metal housing of the brakes are all subject to sudden and intense heat. Now a new aluminium alloy eases manufacturers’’ fears of failure by handling the heat better.



The new alloy therefore forms a key component of a carbon aircraft brake and wheel system as the wheels made from the alloy have to withstand the intense heat generated as the pistons press the carbon disks against each other, stopping the plane and dissipating the plane’s kinetic energy as heat.

Carbon brakes offer constant performance hot or cold, are unaffected by thermal shock or mechanical fatigue and offer unrivalled endurance. For a given level of energy absorption, carbon is three times lighter than steel allowing more passengers and cargo onboard.


The new alloy has a 15% higher temperature tolerance compared to other aluminium alloys and has excellent fatigue behaviour even at temperatures around 200 °C. This makes it ideal to form part of the carbon brake and wheel assembly.

French company Messier-Bugatti is a world leader in the manufacture of wheels for carbon brakes for commercial aircrafts with less than 100 seats. Its engineering department has already designed 10 different carbon brakes that are used in over 1,800 aircrafts operated by 80 airlines. It handled the design, development, manufacture and testing of the new aircraft wheel and specified the behaviour of the new aluminium alloy needed.

Otto Fuchs KG, a major European supplier of aluminium forged and extruded products based in Germany, was given the task of creating the new alloy that would improve on existing products.

Matthias Hilpert of Otto Fuchs says, “the goal of our project was to develop a new aluminium alloy for high temperature application. Otto Fuchs has a long experience in manufacturing and forging high strength aluminium alloys for aerospace applications. This experience helped us to develop this new alloy. We also had some help from universities and institutes to solve difficult metallurgical problems. Messier-Bugatti had tough demands for the behaviour of the new alloy and it was a big challenge for us to meet these.”

As Messier-Bugatti develops and sells the new wheel brake building on its 34% market share, Otto Fuchs is exploring new markets for the alloy such as impellers, parts for vacuum pumps and chemical centrifuges.

Nicola Vatthauer | alfa
Further information:
http://www.eureka.be/award

More articles from Process Engineering:

nachricht NRL develops laser processing method to increase efficiency of optoelectronic devices
16.04.2019 | Naval Research Laboratory

nachricht Hollow structures in 3D
29.03.2019 | Albert-Ludwigs-Universität Freiburg im Breisgau

All articles from Process Engineering >>>

The most recent press releases about innovation >>>

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

Im Focus: Quantum gas turns supersolid

Researchers led by Francesca Ferlaino from the University of Innsbruck and the Austrian Academy of Sciences report in Physical Review X on the observation of supersolid behavior in dipolar quantum gases of erbium and dysprosium. In the dysprosium gas these properties are unprecedentedly long-lived. This sets the stage for future investigations into the nature of this exotic phase of matter.

Supersolidity is a paradoxical state where the matter is both crystallized and superfluid. Predicted 50 years ago, such a counter-intuitive phase, featuring...

Im Focus: Explosion on Jupiter-sized star 10 times more powerful than ever seen on our sun

A stellar flare 10 times more powerful than anything seen on our sun has burst from an ultracool star almost the same size as Jupiter

  • Coolest and smallest star to produce a superflare found
  • Star is a tenth of the radius of our Sun
  • Researchers led by University of Warwick could only see...

Im Focus: Quantum simulation more stable than expected

A localization phenomenon boosts the accuracy of solving quantum many-body problems with quantum computers which are otherwise challenging for conventional computers. This brings such digital quantum simulation within reach on quantum devices available today.

Quantum computers promise to solve certain computational problems exponentially faster than any classical machine. “A particularly promising application is the...

Im Focus: Largest, fastest array of microscopic 'traffic cops' for optical communications

The technology could revolutionize how information travels through data centers and artificial intelligence networks

Engineers at the University of California, Berkeley have built a new photonic switch that can control the direction of light passing through optical fibers...

Im Focus: A long-distance relationship in femtoseconds

Physicists observe how electron-hole pairs drift apart at ultrafast speed, but still remain strongly bound.

Modern electronics relies on ultrafast charge motion on ever shorter length scales. Physicists from Regensburg and Gothenburg have now succeeded in resolving a...

All Focus news of the innovation-report >>>

Anzeige

Anzeige

VideoLinks
Industry & Economy
Event News

Revered mathematicians and computer scientists converge with 200 young researchers in Heidelberg!

17.04.2019 | Event News

First dust conference in the Central Asian part of the earth’s dust belt

15.04.2019 | Event News

Fraunhofer FHR at the IEEE Radar Conference 2019 in Boston, USA

09.04.2019 | Event News

 
Latest News

Marine Skin dives deeper for better monitoring

23.04.2019 | Information Technology

Geomagnetic jerks finally reproduced and explained

23.04.2019 | Earth Sciences

Overlooked molecular machine in cell nucleus may hold key to treating aggressive leukemia

23.04.2019 | Life Sciences

VideoLinks
Science & Research
Overview of more VideoLinks >>>