Effect of Directional Surface Finish of Brake Discs on Friction Behavior During Running-in

Paper #:
  • 2011-01-2382

Published:
  • 2011-09-18
Citation:
Okamura, T., "Effect of Directional Surface Finish of Brake Discs on Friction Behavior During Running-in," SAE Int. J. Passeng. Cars – Mech. Syst. 4(3):1445-1452, 2011, https://doi.org/10.4271/2011-01-2382.
Author(s):
Affiliated:
Pages:
8
Abstract:
This paper focuses on the interaction in friction behavior between the surface texture of brake discs, rotational directions in braking operations and metal-cutting process, and friction materials with different degrees of aggressiveness. A factorial experiment for front brake discs was conducted by combining eight discs with directional surface finishes, two rotational directions, and two NAO friction materials on a brake dynamometer. The author analyzed several test results, such as the friction coefficients, disc wear, roughness, and the correlation between them. An assumed mechanism describing the friction behavior is discussed using the experimental results and by introducing the contribution of the aggressiveness and adhesiveness to the friction and confirmed by the test results.
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