0570991 - FZÚ 2024 RIV GB eng J - Journal Article
Primus, T. - Hauschwitz, Petr - Vítů, T. - Bičišťová, Radka - Zeman, P. - Cimrman, Martin - Brajer, Jan - Mocek, Tomáš - Smrž, Martin
Enhanced tribological performance and nanostructuring speed on AlTiN by beamshaping technology.
Surface Engineering. Roč. 38, č. 10-12 (2022), s. 939-947. ISSN 0267-0844. E-ISSN 1743-2944
R&D Projects: GA MŠMT EF15_006/0000674; GA MŠMT LO1602
EU Projects: European Commission(XE) 739573 - HiLASE CoE
Grant - others:OP VVV - HiLASE-CoE(XE) CZ.02.1.01/0.0/0.0/15_006/0000674
Institutional support: RVO:68378271
Keywords : Beamshaping * friction * micromachining * functionalization * laser * AlTiN * lipss
OECD category: Optics (including laser optics and quantum optics)
Impact factor: 2.8, year: 2022 ; AIS: 0.334, rok: 2022
Method of publishing: Open access
DOI: https://doi.org/10.1080/02670844.2023.2180855

For the first time,a dynamic beamshaping technology has been utilized for the efficient production of periodic nanostructures on top of AlTiN coating to enable dry machining without costly and environmentally hazardous cutting fluids.First,a variety of periodic nanostructures with periods in a range of 740–273nm were produced utilizing different wavelengths. Additionally, beamshaping technology increased productivity by 4008% up to 105cm2 min−1 by shaping the Gaussian beam into a rectangular beam of 500 × 30 µm.To simulate the application load and resulting heat production during manufacturing,friction analysis was performed at room and elevated temperature to 500°C.The analysis revealed a significant reduction in the friction coefficient – up to 27% and 19% at room temperature and 500°C, respectively.The combination of these results demonstrates that the proposed method can be scaled up for the mass production of functionalized machining tools for dry machining.
Permanent Link: https://hdl.handle.net/11104/0342886