Machines. Technologies. Materials.
Vol. 19 (2025), Issue 7, pg(s) 248-251

TECHNOLOGIES

Using surface microtexturing to enhance tribological properties of functional surfaces

  • 1 Technical university of Kosice, Faculty of Mechanical Engineering, Košice, Slovakia

Abstract

The article presents the results of research aimed at applying selected optimal topography modification procedures to critical areas of shaped parts of molds in order to increase their service life. Molds for high-pressure casting of aluminum alloys were evaluated. The microgeometry of the sample surface was modified by low-energy laser radiation microtexturing. Lattice and stochastic textures were created by laser radiation. The integrity of the sample surfaces after the formation of ablation craters was checked by scanning electron microscopy. The dimensions of the random texture craters on which duplex PVD coating nACRo4. The tribological properties of surfaces with different microtextures were evaluated using the pin-on-ball method.

Keywords

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