Technológ

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Vychádza spravidla dvakrát ročne. Publikuje vedecké, výskumné, odborné, teoretické práce, návody, štúdie, recenzie, informácie o spracovaní technických materiálov. Zameriava sa na uverejňovanie príspevkov a prác venujúcich sa otázkam z oblasti trieskových a beztrieskových technológií, fyzikálnych princípov, nekonvenčných technológií, technologickosti konštrukcií nástrojov, ekonomike výrobného procesu, ekologizácii, spracovaniu odpadov. Takisto publikuje práce o strojoch, nástrojoch, prípravkoch a meracej technike pre oblasť mechanických technológií, výsledkoch výskumu vo sfére informačných technológií v technologickej oblasti. Uverejňuje práce o histórii a vývine mechanických technológií. Časopis zverejňuje príspevky v jazykoch: slovenskom, českom, poľskom, ruskom, anglickom a nemeckom.

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    Technologické riešenia výroby komponentu koľajového vozidla
    (University of Žilina, 2025) Bučko, Martin; Samaš, Vladimír; Slušňák, Patrik; Kravchenko, Oleksandr
    This study provides a comprehensive analysis of four key manufacturing technologies for metallic components: welding, casting, CNC machining, and sheet metal bending. The aim is to compare their technical characteristics, economic aspects, and application potential, with particular attention to the production of a loadbearing component of a railway bogie. The results show that each technology offers distinct advantages and limitations, and the optimal choice depends on several factors such as required precision, production costs, time efficiency, and batch size. Welding ensures high strength but introduces residual stresses and potential defects in the joint area. Casting enables the production of complex or large components with cost-effectiveness in mass production but carries risks of porosity and internal stresses. Sheet metal bending allows fast and economical manufacturing of lightweight components, although limited by material thickness and cracking risks. CNC machining provides the highest precision and surface quality, yet it is the most time- and cost-intensive method, making it more suitable for prototypes or secondary finishing. Overall, the study highlights that the selection of the most appropriate technology should be guided primarily by time and volume requirements, with bending favored for rapid and small-batch production, while casting proves more efficient for large-scale manufacturing.
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    Aplikácia nedeštruktívnych metód kontroly na zvarové spoje vyrobené z plastu
    (University of Žilina, 2024) Koňár, Radoslav; Grünermelová, Lucia
    The article describes the possibilities of non-destructive testing of welds made of plastic materials. Both surface and volume methods of non-destructive testing can be used for plastic welds. Non-destructive testing of plastics has certain limitations. The limitations are related to the physical-mechanical properties of the material, as well as the geometry of the tested parts. The most common inspection of welds on plastic materials is a visual inspection, which is carried out to the extent of 100 %. For the inspection of plastic welds, it is also possible to use the penetration method and, with limitations, also ultrasonic and radiographic inspection.
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    Using the cold metal transfer (CMT) method for wire arc additive manufacturing (WAAM) applications
    (University of Žilina, 2023) Frátrik, Martin; Mičian, Miloš
    This work deals with the possibilities of applying the MAG-CMT welding method for the purpose of wire arc additive manufacturing (WAAM). The WAAM method was operated using an industrial robot and welding device for MAG welding. The aim of the work was to compare three methods of laying layers in order to assess their mutual mixing. Cross-shaped perpendicular walls that were mutually connected as of the welded component were assessed. The geometry, macrostructure, and total operating costs of individual variants were evaluated. The result was the determination of the most accurate and most economical variant of laying layers.
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