Tribological behaviour of non-asbestos brake pad material

Asbestos is being banned worldwide due to its carcinogenic nature and potential health hazardousness from its dust and fumes. There is need to replace asbestos friction materials by environmentally friendly material with appropriate frictional and wear characterestics. The aim of this paper is to evaluate tribological behaviour of asbestos free brake pad material. A friction material viz: CL-3003 made up of high amount of fine brass fibres with synthetic nitrile butadiene rubber, were manufactured using hot press compression moulded to prepare a sample. In this paper the tribological behaviour of the material under consideration was studied using DUCOM (TR-20LE) make Pin on disc test rig. Coefficient of friction and wear rate were evaluated under a set of tribo-parameters using Taguchi's analysis technique. L-9 Orthogonal Array was chosen to study an effect of four parameters at three levels. Experimental result reveals S/N ratios, variance analysis and parameter ranking based on their contribution. Mathematical equations were developed for friction and wear rate within the acceptable range of parameters. Further detailed studies can be extended under simulative test conditions to evaluate optimum stopping distance. (C) 2020 The Authors. Published by Elsevier Ltd.