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Properties and Limitation of an Oxide Coated Aluminum Brake Rotor
Technical Paper
2018-01-1877
ISSN: 0148-7191, e-ISSN: 2688-3627
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English
Abstract
The electrification of the powertrain and the thereto related recuperation of the electric engine saves the energy in the battery and thus reduces the thermally dissipated brake energy, which leads to lower brake rotor temperatures compared to combustion engine vehicles (ICEVs). These new conditions enable to reconsider brake disc concepts. Including lightweight design in heavy battery electric vehicles (BEVs) and the increasingly reliant corrosion resistance of brake rotors, Aluminum is a promising approach for new brake disc concepts.
In the past, Aluminum brake disc concepts have already been deployed. For instance Aluminum Metal-Matrix Composite (Al-MMC) concepts in the Lotus Elise S1 and on the rear axle of the Volvo V40 [1].
The presented concept is a different approach and separates the friction system from the bulk Aluminum brake disc, achieved by coating of the friction rings. By locally reinforcing the friction rings, the good machinability and ductility of the base body is maintained and simultaneously the friction surface is sufficiently protected to resist the frictional loading during a brake application.
In this work, fundamental studies on a brake dynamometer were conducted and supplemented by microstructural investigation to identify damage mechanisms and to judge the technical application of the concept.
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Gulden, F., Gramstat, S., Stich, A., Hoppel, H. et al., "Properties and Limitation of an Oxide Coated Aluminum Brake Rotor," SAE Technical Paper 2018-01-1877, 2018, https://doi.org/10.4271/2018-01-1877.Data Sets - Support Documents
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References
- Alnaqi , A. , Shrestha , S. , Barton , D. , Brooks , P. et al. Optimisation of Alumina Coated Lightweight Brake Rotor SAE Technical Paper 2014-01-2501 2014 10.4271/2014-01-2501
- SAE International Surface Vehicle Recommended Practice 2013
- Alnaqi , A. , Kosarieh , S. , Barton , D.C. , Brooks Peter , C. et al. Material Characterisation of Lightweight Disc Brake Rotors Proceedings of the Institution of Mechanical Engineers, Part L: Journal of Materials Design and Applications 2016
- Alnaqi , A. , Shrestha , S. , Brooks , P. , and Barton , D. Thermal Performance of PEO Coated Lightweight Brake Rotors Compared with Grey Cast Iron Proceedings of EuroBrake Lille, France 2014
- Gulden , F. , Stich , A. , Gramstat , S. , Höppel , H.W. et al. Fundamental Investigations of Aluminium Matrix Composite Brake Rotors for the Use in Passenger Cars EB2017-MDS-26, Proceedings of EuroBrake Dresden, Germany 2017
- Curran , J.A. and Clyne , T.W. Thermo Physical Properties of Plasma Electrolytic Oxide Coatings on Aluminium Surf. Coat. Technol. 199 168 176 2005
- Gulden , F. , Stich , A. , Gramstat , S. , Höppel , H.W. et al. Investigations of the Third Body Using Pin-on-Disc and Brake Dynamometer on Al-MMC Brake Rotors EB2018-MDS-023, Proceedings of EuroBrake The Hague, the Netherlands 2018