Lubrication Performance of the Grid-Patterned Microcirculation Surface

The effect of the grid texture on the lubrication performance of microcirculation surface was investigate. The femto-second laser and Numerical control were used to fabricate the grid-pattern. The parametric design of the grid textured surface with characterization of the dimensionless parameters of length ratio Λ, width ratio Γ and angle α, and numerical iteration method combined with the tribology experiment were correlated to the lubrication performance. The results indicate that the microcirculation grid textures of the sliding surface dramatically decreased the friction coefficient. When Λ was larger than 0.45, an optimum for friction coefficient was achieved. When Λ was out of this range, relationship between the grid parameters and the friction coefficient became complicated. Optimum angle decreased while the optimum Γ increased.