Gergely Kovács
59932205100
Publications - 1
A Preliminary Study on Laser Surface Texturing of Passenger Car Engine Piston Rings
Publication Name: Fme Transactions
Publication Date: 2025-01-01
Volume: 53
Issue: 2
Page Range: 252-259
Description:
Laser surface texturing offers a possible solution for reducing friction between sliding surfaces in engineering applications. Optimized surface topography can also contribute to reduced wear and elevated longevity by modifying the load and speed-dependent friction state in a system. This preliminaryexperimental study investigates the applicability of affordable fibre laser marking systems for microtexturing piston rings, in order to achieve a measurable reduction in friction under subsystem model conditions. A selection of textures are applied to chromium-coated cast iron piston rings. The resulting surface topographies are characterized through confocal microscopy and subjected to friction testing. A correlation analysis is conducted on surface topography parameters to identify key laser process parameters. Findings indicate an improvement in the range of 7–8% in terms of friction coefficient with appropriate texture size.
Open Access: Yes
DOI: 10.5937/fme2502252L