The article presents considerations regarding the cooperation of the piston-cylinder-piston ring (P-C-R) assembly in terms of improving their tribological properties. Using ablative laser micromachining, the face and side surfaces of the piston ring were textured, creating characteristic micro-oil reservoirs. Preliminary results of own research in the field of surface layer texturing are presented. Preliminary studies aimed at improving the tribological properties of the (P-C-R) assembly included: selection of the best laser micromachining parameters, surface topography studies, hardness, and chemical composition in micro-areas.In many technological applications, there is a growing demand for high-performance systems lubricated by media (e.g., water, oil, or fuels). In the case of limited lubrication of a tribological pair, high friction occurs between the cooperating surfaces due to the local rupture of the lubricant film. (…)
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Source: Logistyka Magazine