Tribological Behaviour of PTFE and its Composites | Original Article

ABSTRACT:

In this study, the effect of applied load, Sliding time and sliding velocity on wear and friction behaviour of polytetrafluoroethylene (PTFE) or Teflon, and its three composites viz., 55% Bronze filled PTFE, 60% bronze filled PTFE & 40% Bronze filled PTFE, is experimentally examined & analytically analysed. Experiments were performed using a standard single pin type Pin-on-Disc arrangement, sliding uni-directionally against counter face material EN-31 steel. Experiments were carried out at dry condition and at ambient temperature, assuming other parameters to be constant. Experiments were performed using DOE (Design of Experiment) based on Taguchi’s approach and L9 orthogonal array. ANOVA is performed for critical analysis of the contribution of the individual input parameters on the optimality of the desired conditions. It is observed that, for the range of applied load and sliding velocity explored in this study, the applied load is the significant parameter than sliding velocity, with the exception of 60% Bronze filled PTFE, in which both the parameters are equally significant.