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    Wyświetlanie 1-3 z 3
    Tytuł:
    Assessment of the safety of use of portable machine tools
    Autorzy:
    Nowak, M.
    Terelak-Tymczyna, A.
    Powiązania:
    https://bibliotekanauki.pl/articles/30147065.pdf
    Data publikacji:
    2018
    Wydawca:
    Akademia Wojsk Lądowych imienia generała Tadeusza Kościuszki
    Tematy:
    portable machine tools
    portable machining
    on-site machining
    risk analysis
    safety
    Opis:
    The article presents safety issues related to on-site machining with the use of portable machine tools. Their advantage is the possibility of machining elements at places in which they are used. This especially refers to large-size constructions, welded elements and any items whose disassembly is technically difficult. The authors present tasks performed by the operators of portable machining equipment, working conditions, construction and characteristic features of portable machine tools on the example of a portable boring machine, milling machine and flange facing machine. The presented characteristics can influence the safety of work with these machines. The information given in the article were used to asses risk at the position of a portable machine tool operator. The assessment was conducted using the Risk Score method taking into account four stages of using portable machine tools, i.e. transport, assembly/disassembly, machining and maintenance. The result of the conducted risk analysis is the proposal of possible risk reducing actions. Due to the specificity of the operation of portable machine tools which significantly impedes the development of a machine tool which would be safe in and of itself, the proposed actions refer mainly to organisational solutions. The work presents also the thesis that it is possible to decrease the risk at this position thanks to the use of numerical control in a portable machine tool. Such a solution may reduce exposure to some identified threats. The issue is presented on the example of a prototype of a portable flange facing machine developed in the Institute of Mechanical Technology ZUT in Szczecin.
    Źródło:
    Scientific Journal of the Military University of Land Forces; 2018, 50, 3(189); 192-205
    2544-7122
    2545-0719
    Pojawia się w:
    Scientific Journal of the Military University of Land Forces
    Dostawca treści:
    Biblioteka Nauki
    Artykuł
    Tytuł:
    Identyfikacja problemów w procesie produkcji mieszanki gumowej z wykorzystaniem wybranych metod i narzędzi zarządzania jakością
    The identification of problems in the rubber compound production process using selected methods and quality management tools
    Autorzy:
    Terelak-Tymczyna, A.
    Biniek, A.
    Bachtiak-Radka, E.
    Powiązania:
    https://bibliotekanauki.pl/articles/340130.pdf
    Data publikacji:
    2018
    Wydawca:
    Polskie Towarzystwo Zarządzania Produkcją
    Tematy:
    block diagram
    Ishikawa diagram
    Pareto-Lorenz chart
    FMEA
    rubber industry
    schemat blokowy
    diagram Ishikawy
    diagram Pareto-Lorenza
    przemysł gumowy
    Opis:
    The paper presents theoretical basis for problem identification related to the production of rubber mixture in which they were characterized methods and tools for quality management. The main aim of the paper is use of selected methods and tools to identify problems during the production of rubber mixture in the enterprise. Based on information and observation were identified problems occurring in individual stages the actual production process of rubber compound. The aim were gathered information the process, have been applied tools in the form of a control sheet and block diagram. To illustrate and present particular causes and effects of defects it was made Ishikawa diagram, which it was the starting point for the analysis FMEA to determine the level of risk and to develop preventive actions. Based on the collected data, identification of the most common problems using the Pareto-Lorenzo diagram has been made.
    Źródło:
    Zarządzanie Przedsiębiorstwem; 2018, 21, 4; 22-29
    1643-4773
    Pojawia się w:
    Zarządzanie Przedsiębiorstwem
    Dostawca treści:
    Biblioteka Nauki
    Artykuł
    Tytuł:
    Comparative Analysis of the Production Process of a Flange-Type Product by the Hybrid and Traditional Method with the Use of Simulation Methods
    Autorzy:
    Terelak-Tymczyna, Agnieszka
    Bachtiak-Radka, Emilia
    Jardzioch, Andrzej
    Powiązania:
    https://bibliotekanauki.pl/articles/2067547.pdf
    Data publikacji:
    2022
    Wydawca:
    Stowarzyszenie Inżynierów i Techników Mechaników Polskich
    Tematy:
    machining
    hybrid machining
    VSM
    SLM
    process simulation
    cost of the production
    energy analysis
    Opis:
    In the era of Industry 4.0, the digitization of production processes is one of the important elements contributing to the reduction of uncertainty related to the implementation of new production methods. The worldwide epidemic situation and its constraints have resulted in supply chain continuity problems. These problems make enterprises look for the possibility of producing products that they need at the moment and which they cannot obtain from the market. In special cases, this may also apply to spare parts necessary to maintain the continuity of production. The main reason for research on comparing production processes is meeting the challenges related to the pandemic situation and problems in maintaining timeliness, flexibility, and continuity of the supply chain. The first stage of the research was to visualize the course of the process and determine the lead times for both production methods. For further analysis, a digital process model was used to compare the hybrid and the classical method to check the viability of the interchangeability of methods for the production process of the flange part. The interchangeability of production methods was dictated by problems related to the supply of components for the execution of orders. The article simulates the model for unit and small-lot production in batches of 10 and 100 pieces, considering such aspects as: order completion time, energy consumption of the process, production costs, taking into account the classic and hybrid methods. The conducted research was aimed at determining the profitability of the production of flange-type products by means of classical processing and hybrid and checking the interchangeability of production methods in accordance with quality requirements as well as reducing uncertainty with the implementation of new production systems in changing market conditions. The simulations show that the use of hybrid production is recommended for unit production. In the case of small-lot production, already with 10 items, production in the traditional process is 21% cheaper, and for the production of 100 items, the cost of traditional production is reduced by 33% compared to hybrid production.
    Źródło:
    Advances in Science and Technology. Research Journal; 2022, 16, 1; 231--242
    2299-8624
    Pojawia się w:
    Advances in Science and Technology. Research Journal
    Dostawca treści:
    Biblioteka Nauki
    Artykuł
      Wyświetlanie 1-3 z 3

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