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 Intelligent wheelchairs, predictive prostheses
20.12.2017 | Fraunhofer-Institut für Produktionstechnik und Automatisierung IPA

nachricht Jelly with memory – predicting the leveling of com-mercial paints
15.12.2017 | Fraunhofer-Institut für Produktionstechnik und Automatisierung IPA

All articles from Process Engineering >>>

The most recent press releases about innovation >>>

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

Im Focus: Demonstration of a single molecule piezoelectric effect

Breakthrough provides a new concept of the design of molecular motors, sensors and electricity generators at nanoscale

Researchers from the Institute of Organic Chemistry and Biochemistry of the CAS (IOCB Prague), Institute of Physics of the CAS (IP CAS) and Palacký University...

Im Focus: Hybrid optics bring color imaging using ultrathin metalenses into focus

For photographers and scientists, lenses are lifesavers. They reflect and refract light, making possible the imaging systems that drive discovery through the microscope and preserve history through cameras.

But today's glass-based lenses are bulky and resist miniaturization. Next-generation technologies, such as ultrathin cameras or tiny microscopes, require...

Im Focus: Stem cell divisions in the adult brain seen for the first time

Scientists from the University of Zurich have succeeded for the first time in tracking individual stem cells and their neuronal progeny over months within the intact adult brain. This study sheds light on how new neurons are produced throughout life.

The generation of new nerve cells was once thought to taper off at the end of embryonic development. However, recent research has shown that the adult brain...

Im Focus: Interference as a new method for cooling quantum devices

Theoretical physicists propose to use negative interference to control heat flow in quantum devices. Study published in Physical Review Letters

Quantum computer parts are sensitive and need to be cooled to very low temperatures. Their tiny size makes them particularly susceptible to a temperature...

Im Focus: Autonomous 3D scanner supports individual manufacturing processes

Let’s say the armrest is broken in your vintage car. As things stand, you would need a lot of luck and persistence to find the right spare part. But in the world of Industrie 4.0 and production with batch sizes of one, you can simply scan the armrest and print it out. This is made possible by the first ever 3D scanner capable of working autonomously and in real time. The autonomous scanning system will be on display at the Hannover Messe Preview on February 6 and at the Hannover Messe proper from April 23 to 27, 2018 (Hall 6, Booth A30).

Part of the charm of vintage cars is that they stopped making them long ago, so it is special when you do see one out on the roads. If something breaks or...

All Focus news of the innovation-report >>>

Anzeige

Anzeige

VideoLinks
Industry & Economy
Event News

2nd International Conference on High Temperature Shape Memory Alloys (HTSMAs)

15.02.2018 | Event News

Aachen DC Grid Summit 2018

13.02.2018 | Event News

How Global Climate Policy Can Learn from the Energy Transition

12.02.2018 | Event News

 
Latest News

Fingerprints of quantum entanglement

16.02.2018 | Information Technology

'Living bandages': NUST MISIS scientists develop biocompatible anti-burn nanofibers

16.02.2018 | Health and Medicine

Hubble sees Neptune's mysterious shrinking storm

16.02.2018 | Physics and Astronomy

VideoLinks
Science & Research
Overview of more VideoLinks >>>