This study investigates the effect of laser surface texturing on the friction behavior of\ngrey cast iron reciprocating under boundary, mixed lubrication conditions and cyclic loading.\nFour geometrical parameters of micro-textures (feature depth, feature diameter, area fraction,\nand sliding direction) were studied using a design of experiments (DoE) approach. The results\nshowed that depending on the geometry, micro-textures can have either a positive or a negative effect\non the friction behavior. The DoE analysis revealed that the coefficient of friction is mainly affected\nby the interaction of the feature depth and its diameter. It was found that this can be related to the\naspect ratio of the dimples, and the best results were obtained for an aspect ratio of 0.1 and 0.17.
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