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Development of Cu-Free Brake Materials
Technical Paper
2012-01-1787
ISSN: 0148-7191, e-ISSN: 2688-3627
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English
Abstract
The purpose of this research study was to develop Cu-free automotive brake materials. Model brake material samples were manufactured and subjected to full scale automotive brake dynamometer (Dyno) tests using SAE J2430 test procedure. The SAE recommended J2430 test procedure provided the necessary data for the Brake Effectiveness Evaluation Procedure (BEEP) by the Brake Manufacturers' Council. The Dyno results indicate that the friction level of the all four Cu-free samples was similar to the baseline material. All tested brakes have passed the Brake Effectiveness Evaluation Procedure (BEEP). The average effectiveness of Baseline (BL), GT1, GT2, T401 and T402 samples is 0.32, 0.31, 0.30, 0.31 and 0.31, respectively. The Dyno results show that the Cu-free samples had similar or better performance compared to the baseline material as the temperature of the brake increased in the fade section. However, the Cu-free samples exhibit slightly higher wear rate in Dyno tests.
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Citation
Lee, P., Lee, L., and Filip, P., "Development of Cu-Free Brake Materials," SAE Technical Paper 2012-01-1787, 2012, https://doi.org/10.4271/2012-01-1787.Also In
References
- Filip, P. Kovarik, L. Wright, M. “Automotive Brake Lining Characterization,” SAE Technical Paper 973024 1997 10.4271/973024
- Bijwe, J. Composites as friction materials: recent developments in non-asbestos fiber reinforced friction materials-a review Polym. Comp. 18 June 1997
- Pugh, K. Brake linings-the past, present and future Ind. Miner. March 1991
- Brake Pad Partnership “Characterization of Airborne Brake Wear Debris” http://www.suscon.org/bpp/pdfs/ADPSDAmendedFinalReport(Jan2006).pdf January 2012
- “Brake Pad Partnership” http://www.suscon.org/bpp/index.php January 2012
- A metal whose use dates back centuries continues to fulfill essential needs today - and standards from ASTM Committee B05 address it applications ASTM Standardization News September October 2010 40
- Sanders, P.G. Xu, N. Dalka, T.M. Maricq, M. 2003 “Airborne Brake Wear Debris: Size Distributions, Composition, and a Comparison of Dynamometer and Vehicle Tests,” Environ. Sci. Technol. 37 18 4060 4069
- Roubicek, V. Raclavska, H. Juchelkova, D. Filip, P. 2008 “Wear and Environmental Aspects of Composite Materials for Automotive Braking Industry,” Wear 265 1-2 167 175
- Hjortenkrans, D. S. T. Bergback, B. G. Haggerud, A. V. “Metal Emissions from Brake linings and tires: Case studies of Stockholm, Sweden 1995/1998 and 2005” Environmental Science and Technology 41 2007 5224 5230
- Hulskotte, J.H.J. Denier van der Gon, H.A.C. Visschedijk, A.J.H. Schaap, M. “Brake wear from vehicles as an important source of diffuse copper pollution” Water Science & Technology 2007 56 1 223 231
- Rosselot, K. S. “Copper Released from Brake Lining Wear in the San Francisco Bay Area” January 2006 http://www.suscon.org/bpp/pdfs/BrakeSourcesReportFinal01-30-06a.pdf January 2012
- Peters, R. “Environmental Effects of Copper in Brake Pad Wear Debris,” SAE 2008 Brake Colloquium & Exhibition, Brake Pad Partnership October 2008
- “Brake Friction Material - Restriction on Use” http://apps.leg.wa.gov/documents/billdocs/2009-10/Pdf/Bills/Session%20Law%202010/6557-S.SL.pdf January 2012
- “Hazardous materials: motor vehicle brake friction materials” http://www.leginfo.ca.gov/pub/09-10/bill/sen/sb_0301-0350/sb_346_bill_20100927_chaptered.pdf January 2012
- “Relating to Roadway Particulate Matter Pollution Control” http://www.capitol.hawaii.gov/session2012/bills/SB2342_.HTM January 2012
- Motavalli, J. “Movement to Banish Copper From Brake Pads Gains Momentum” http://wheels.blogs.nytimes.com/2012/02/03/movement-to-banish-copper-from-brake-pads-gains-momentum/ January 2012
- How To Read And Understand The Aftermarket Standard SAE J2430/Brake Effectiveness Evaluation Procedure Test Report http://www.factsaboutfriction.com/reports.104.htm January 2012