Elimination of surface spiral pattern on brake discs

Nowadays, brake disc manufacturers are seeking new finishing techniques to offer economical solutions to their customers and so become more competitive. The elimination of the surface spiral pattern after turning operation is a challenge to avoid braking problems at the early life of the component. This paper presents a practical low-cost solution to finishing this kind of component. Concretely, a detailed study of the brushing process as an alternative solution to the conventional grinding process is performed. The limited literature regarding this topic implies the necessity of a full study of the process prior to any industrial application. The influence of process variables on the final surface was analyzed in this work. In addition, the tool wear and tool life behavior, the influence of the abrasive type used and the originating forces during the process were taking into account. Once the process was established, various prototypes were finished in order to check the feasibility of the process and to pass the required quality control. Results show that brushing is a feasible and economical alternative for brake disc finishing. The surface quality obtained was shown to be equal or better than grinding, with reduced costs and manufacturing time.

[1]  Libardo V. Vanegas-Useche,et al.  Dynamic finite element model of oscillatory brushes , 2011 .

[2]  Hideki Aoyama,et al.  Insert geometry effects on surface roughness in turning process of AISI D2 steel , 2010 .

[3]  Wenping Cao,et al.  Design and analysis of the hybrid excitation rail eddy brake system of high-speed trains , 2011 .

[4]  Xiong Bill Yu,et al.  Towards safe and comfortable high-speed transportation infrastructure , 2012 .

[5]  Amilton Sinatora,et al.  Wear resistance of cast irons used in brake disc rotors , 2003 .

[6]  Homer Rahnejat,et al.  The influence of the interface coefficient of friction upon the propensity to judder in automotive clutches , 1999 .

[7]  R. Thornton,et al.  The effects of cryogenic processing on the wear resistance of grey cast iron brake discs , 2011 .

[8]  Jianfeng Li,et al.  Tool wear criterion, tool life, and surface roughness during high-speed end milling Ti-6Al-4V alloy , 2010 .

[9]  G. A. Parker,et al.  Determination of friction coefficients, brush contact arcs and brush penetrations for gutter brush–road interaction through FEM , 2011 .

[10]  B. Izquierdo,et al.  Machining evaluation of a hybrid MQL-CO2 grinding technology , 2010 .

[11]  Peng Liu,et al.  Cutting force and its frequency spectrum characteristics in high speed milling of titanium alloy with a polycrystalline diamond tool , 2011 .

[12]  Aitzol Lamikiz,et al.  Surface improvement of shafts by the deep ball-burnishing technique , 2012 .

[13]  Ho Jang,et al.  Effect of surface contact conditions on the stick–slip behavior of brake friction material , 2012 .

[14]  R. Stango,et al.  Morphology of metal surface generated by nylon/abrasive filament brush , 2003 .

[15]  H. Rahnejat,et al.  Fundamentals Of Tribology , 2008 .

[16]  Laurent Dubar,et al.  A methodology for the modelling of the variability of brake lining surfaces , 2012 .

[17]  M. Surappa,et al.  Tribological characteristics of A356 Al alloy–SiCP composite discs , 2011 .

[18]  S. Melkote,et al.  Effect of process parameters on the rate of abrasive assisted brush deburring of microgrooves , 2012 .

[19]  Philippe Gilles,et al.  Modelling of multiple impacts for the prediction of distortions and residual stresses induced by ultrasonic shot peening (USP) , 2012 .

[20]  Aitzol Lamikiz,et al.  Laser polishing of tool steel with CO2 laser and high-power diode laser , 2010 .

[21]  Homer Rahnejat,et al.  Non-linear multi-body dynamic analysis for the study of clutch torsional vibrations (judder) , 2001 .

[22]  Staffan Jacobson,et al.  Influence of disc topography on generation of brake squeal , 1999 .

[23]  G. Parker,et al.  Dynamics of a freely rotating cutting brush subjected to variable speed , 2008 .

[24]  Lai-fei Cheng,et al.  Microstructure and frictional properties of C/SiC brake materials with sandwich structure , 2011 .

[25]  Staffan Jacobson,et al.  Surface modification of brake discs to reduce squeal problems , 2006 .

[26]  Chong Wang,et al.  Modelling rotary sweeping brushes and analyzing brush characteristic using finite element method , 2007 .