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In this paper we show a contribution to the study of the complex phenomenon of  wear through the results obtained by rubbing together PTFE and steal. The wear  system designed (pin on a disc) is equipped with strain gages that allow to  measure simultaneously the normal and the tangential forces. Different tests  have been used to validate the apparatus. The effect of various parameters such  as the speed and the load has been investigated. The results obtained for the  evolution of the coefficient of friction versus load and speed are in good  agreement with the literature

Study of the effect of speed and load on wear mechanism of a plan/plan contact with the help of a strain gage dynamometer