ISSN 2343–7707 ; ISSN-L 1453-7303

Here below we post a list of
Articles already accepted for publication in Issue 2/(June) 2024 of ‘Hidraulica’ Magazine.
The list displays the article title, author(s) and affiliation(s),
and also the article abstract.
Full-length article will be available online only after publication. 

  • The Laser Treatment’s Impact on the Surface Topography of MONEL® Alloy 400, used in the Manufacturing of Marine Equipment Components
    Assoc. Prof. Ph.D. Eng. Ștefan ŢĂLU1, M.Sc. Kipkurui RONOH2,3, Assoc. Prof. Ph.D. Dinara SOBOLA2,4
    1Technical University of Cluj-Napoca, Romania
    2Brno University of Technology, Czech Republic
    3Dedan Kimathi University of Technology, Kenya
    4Czech Academy of Sciences, Institute of Physics of Materials, Czech Republic

In the study, the authors investigated the effects of picosecond laser ablation on the surface topographies of MONEL® alloy 400, used in the manufacturing of marine equipment components (such as pumps, valves, fixtures and fasteners). The experimental methodology involved preparing the material through grinding, polishing, and cleaning before subjecting it to picosecond laser ablation using specific parameters. The laser processing was carried out to create square ablated cavities on the alloy surface. The impact of the laser treatment on the surface condition of the alloy was assessed through profilometry analysis. The results provide insights into the surface topographies of the laser-treated MONEL® alloy 400 samples, offering valuable information for potential applications in marine industries.

  • Modeling and Simulation of the Hydraulic Clamping/Unclamping Systems Using Hydro-Pneumatic Accumulators
    Prof. PhD Eng. Anca BUCUREȘTEANU1
    1University POLITEHNICA of Bucharest, Romania

This article highlights some methods for determining the optimal accumulator for the hydraulic units with accumulators used in the locking and clamping/unclamping systems for machine-tools. The mathematical models and the results of the simulations carried out for designing such units are shown below. The results of the research can also be applied in the case of the clamping/unclamping systems for the tool-holders of the machine-tools or similar systems.

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