Experimental study on friction and wear performance of non-smooth brake surface

The wear tests of brake friction pair with regularly distributed pits on brake disc surface were performed on the wear testing machine. The wear losses were measured by the L-200 photoelectric analytical balance. The experiment result shows that both the pits distance and the diameter have significant influences on the wear resistance, the non-smooth surface morphology also has influence on friction coefficient. The wear losses of the smooth surface and non-smooth surface are compared to analyze the friction and wear performance of non-smooth surface quantitatively. Analysis results show that friction and wear performance of non-smooth surface is better than that of smooth sample.