Effects of Different Surface Patterns on Tribological Performance under Starved Lubrication

This study aim to investigated the effects of physical micro wedge in contacting surface patterns on tribological performance. Different surface patterns fabricated on low carbon steel by a nano-second pulsed laser. The frictional test were conducted using a rotating type tribometer and machine tool slideway oil (Shell Tonna S2 M 32), the frictional behavior were investigated by against copper under starved lubrication conditions, with a constant normal load of 147.15 N and a sliding speed of 0.4189 m/s. The results showed that the surface pattern with physical micro wedge could enhance the micro-hydrodynamic lubrication during a sliding contact, resulting in a decrease in the frictional coefficient approaching to 0.03.