• Petar Tsvyatkov Faculty of Engineering, Technical University of Gabrovo (BG)
  • Emil Yankov Faculty of Engineering, Rezekne Academy of Tehnologies (LV)
  • Lyubomir Lazov Faculty of Engineering, Rezekne Academy of Tehnologies (LV)
  • Edmunds Teirumnieks Faculty of Engineering, Rezekne Academy of Tehnologies (LV)
  • Karlis Pīgožnis Faculty of Engineering, Rezekne Academy of Tehnologies (LV)



Carbon steel, Laser marking, Roughness, fiber laser, surface texturing


Laser marking with a nanosecond fiber laser is one of the most common ways to permanently mark various engineering materials. The roughness of the machined surface and its observation is essential to evaluate the impact on the contrast of the marking as well. Experimental studies of the roughness obtained as a result of the laser marking, were inspected using a 3D measuring laser microscope OLYMPUS LEXT OLS5100. Analysis of the graphical dependence of the roughness function on the four process parameters: laser power, frequency, speed of marking and step.


Supporting Agencies
The authors gratefully acknowledge financial support by the European Regional Development Fund, Postdoctoral research aid Nr. research application "Analysis of the parameters of the process of laser marking of new industrial materials for high-tech applications, Nr.".


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How to Cite

P. Tsvyatkov, E. Yankov, L. Lazov, E. Teirumnieks, and K. Pīgožnis, “INVESTIGATION OF SURFACE ROUGHNESS OF CARBON STEEL MACHINED PARTS AFTER NANOSECOND FIBER LASER MARKING”, ETR, vol. 3, pp. 358–362, Jan. 2024, doi: 10.17770/etr2023vol3.7317.