Enhanced tribological performance and nanostructuring speed on AlTiN by beamshaping technology

Enhanced tribological performance and nanostructuring speed on AlTiN by beamshaping technology

Primus, T.; Hauschwitz, P.; Vítů, T.; Bičišťová, R.; Zeman, P.; Cimrman, M.; Brajer, J.; Mocek, T. et al. Surface Engineering. 38(10-12), 939-947. 2023. ISSN 0267-0844.

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 740–273 nm were produced utilizing different wavelengths. Additionally, beamshaping technology increased productivity by 4008% up to 105 cm2 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. © 2023 The Author(s). Published by Informa UK Limited, trading as Taylor & Francis Group.

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