  tsvetkov-dm-tik-73-2026-3.pdf |
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- Formation of visual and tactile effects of metallic surfaces by laser processing
- Tsvetkov D. M. Formation of visual and tactile effects of metallic surfaces by laser processing. Technologies & Quality. 2026. No 3(73). P. 77–84. (In Russ.) https://doi.org/ 10.34216/2587-6147-2026-3-73-77-84.
- DOI: https://doi.org/10.34216/2587-6147-2026-3-73-77-84
- УДК: 739.52; 672; 673.1
- EDN: HSEVQU
- Publish date: 2026-07-02
- Annotation: The influence of pulsed laser processing parameters on the formation of visual and tactile effects on the surfaces of AISI 304 steel, MN-19 nickel silver, and VT1-0 titanium has been investigated. Using a full factorial design, laser power (10...90 % of 50 W), scanning speed (50...900 mm/s), and resolution (20...100 lines/mm) were varied. Analysis of microstructure, roughness parameters (Ra, Rz), and local color (averaged RGB value) showed that laser processing can create surfaces in a wide range of states: from slightly modified (Ra ≈ 0.14 µm) to distinctly textured (Ra up to 16 µm). For AISI 304 steel, non-monotonic (V-shaped) dependencies of local color on scanning speed were revealed, corresponding to transitional processing regimes. For VT1-0 titanium, a different color formation mechanism was established, associated with the formation of interference oxide films. Based on the experimental data, practical recommendations have been developed for selecting laser processing modes to obtain reproducible decorative effects in the design of design products, jewelry, and hardware.
- Keywords: laser processing, decorative finishing, surface microstructure, roughness, local color, AISI 304, nickel silver, titanium, surface design
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