In this paper surface profile, roughness and hardness were experimented for study of friction wear characteristic of automotive disk brake considering running distance. In this work, 5 specimens were employed for roughness test as a function running d...
In this paper surface profile, roughness and hardness were experimented for study of friction wear characteristic of automotive disk brake considering running distance. In this work, 5 specimens were employed for roughness test as a function running distance. Despite the fact that brakes must operate under a variety of environmental conditions, most research has worked in laboratory with ideal condition. This paper investigated the average roughness of disk brakes which are actually operated in automotive. Average roughness decreased with running distance from 0 to about 10,000㎞ due to unevenly contact surfaces between disk brake and pads. But that has been increased with running distance from about 10,000 to 20,000㎞ due to loss of solid lubrication film and higher contact pressure between two rubbing surfaces.