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Wyszukujesz frazę "Lichý, P." wg kryterium: Autor

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    Wyświetlanie 1-4 z 4
    Tytuł:
    Manufacturing of Cast Metal Foams with Irregular Cell Structure
    Autorzy:
    Kroupová, I.
    Radkovský, F.
    Lichý, P.
    Bednářová, V.
    Powiązania:
    https://bibliotekanauki.pl/articles/382675.pdf
    Data publikacji:
    2015
    Wydawca:
    Polska Akademia Nauk. Czytelnia Czasopism PAN
    Tematy:
    metallic foam
    precursor
    casting
    irregular structure
    cell structure
    piana metalowa
    prekursor
    odlewanie
    struktura nieregularna
    struktura komórkowa
    Opis:
    Metallic foams are materials of which the research is still on-going, with the broad applicability in many different areas (e.g. automotive industry, building industry, medicine, etc.). These metallic materials have specific properties, such as large rigidity at low density, high thermal conductivity, capability to absorb energy, etc. The work is focused on the preparation of these materials using conventional casting technology (infiltration method), which ensures rapid and economically feasible method for production of shaped components. In the experimental part we studied conditions of casting of metallic foams with open pores and irregular cell structure made of ferrous and nonferrous alloys by use of various types of filler material (precursors).
    Źródło:
    Archives of Foundry Engineering; 2015, 15, 2; 55-58
    1897-3310
    2299-2944
    Pojawia się w:
    Archives of Foundry Engineering
    Dostawca treści:
    Biblioteka Nauki
    Artykuł
    Tytuł:
    Preparation and Evaluation of Properties of Cast Metallic Foams with Regular Inner Structure
    Autorzy:
    Lichý, P.
    Elbel, T.
    Kroupová, I.
    Radkovský, F.
    Powiązania:
    https://bibliotekanauki.pl/articles/353931.pdf
    Data publikacji:
    2017
    Wydawca:
    Polska Akademia Nauk. Czytelnia Czasopism PAN
    Tematy:
    metallic foams
    casting
    microstructure
    mechanical properties
    Opis:
    Lately we encounter still more new applications of metallic foams, as well as possible methods of their manufacture. These metallic materials have specific properties, such as large rigidity at low density, in some cases high thermal conductivity, capability to absorb energy, etc. The work is focused on the preparation of these materials using conventional casting technology, which ensures rapid and economically feasible method for production of shaped components. In the experimental part we studied conditions of casting of metallic foams with a regular structure made of ferrous and non-ferrous alloys. For thus obtained castings we evaluated the achieved microstructure and mechanical properties, which determine the possible use of these materials. The samples were subjected to compression tests, by which we investigated deformation behaviour of selected materials and determined the value of energy absorption.
    Źródło:
    Archives of Metallurgy and Materials; 2017, 62, 3; 1643-1646
    1733-3490
    Pojawia się w:
    Archives of Metallurgy and Materials
    Dostawca treści:
    Biblioteka Nauki
    Artykuł
    Tytuł:
    Some Possibilities of Using Statistical Methods While Solving Poor Quality Production
    Autorzy:
    Lakomá, R.
    Čamek, L.
    Lichý, P.
    Kroupová, I.
    Radkovský, F.
    Obzina, T.
    Powiązania:
    https://bibliotekanauki.pl/articles/1837848.pdf
    Data publikacji:
    2021
    Wydawca:
    Polska Akademia Nauk. Czytelnia Czasopism PAN
    Tematy:
    production process
    investment casting
    poor quality products
    casting defects
    quality of cast
    statistical hypothesis
    wax patterns
    proces produkcji
    produkty odlewnicze
    wady odlewów
    jakość odlewu
    metody statystyczne
    formy woskowe
    Opis:
    This paper presents an overview of a research on six practical cases that were solved in a precise casting company where parts are cast by the mean of the low-wax casting method (investment casting) in order to decrease poor quality production. The steel cast parts production technology by the lost-wax method requires the detailed work procedures observation. On the base of statistical processing data of given types of casting products, it was possible to assess the significance of each particular checking events by using the statistical hypothesis testing. The attention was focused on wax and ceramic departments. The data in technological flow were compared before and after the implementation of the change and statistical confirmative influences were assessed. The target consisted in setting such control manners in order to get the right conditions for decreasing poor quality parts. It was evidenced that the cast part defect cause correct identification and interpretation is important.
    Źródło:
    Archives of Foundry Engineering; 2021, 21, 1; 18-22
    1897-3310
    2299-2944
    Pojawia się w:
    Archives of Foundry Engineering
    Dostawca treści:
    Biblioteka Nauki
    Artykuł
    Tytuł:
    Some Possibilities of Using Statistical Methods While Solving Poor Quality Production
    Autorzy:
    Lakomá, R.
    Čamek, L.
    Lichý, P.
    Kroupová, I.
    Radkovský, F.
    Obzina, T.
    Powiązania:
    https://bibliotekanauki.pl/articles/1837805.pdf
    Data publikacji:
    2021
    Wydawca:
    Polska Akademia Nauk. Czytelnia Czasopism PAN
    Tematy:
    production process
    investment casting
    poor quality products
    casting defects
    quality of cast
    statistical hypothesis
    wax patterns
    proces produkcji
    produkty odlewnicze
    wady odlewów
    jakość odlewu
    metody statystyczne
    formy woskowe
    Opis:
    This paper presents an overview of a research on six practical cases that were solved in a precise casting company where parts are cast by the mean of the low-wax casting method (investment casting) in order to decrease poor quality production. The steel cast parts production technology by the lost-wax method requires the detailed work procedures observation. On the base of statistical processing data of given types of casting products, it was possible to assess the significance of each particular checking events by using the statistical hypothesis testing. The attention was focused on wax and ceramic departments. The data in technological flow were compared before and after the implementation of the change and statistical confirmative influences were assessed. The target consisted in setting such control manners in order to get the right conditions for decreasing poor quality parts. It was evidenced that the cast part defect cause correct identification and interpretation is important.
    Źródło:
    Archives of Foundry Engineering; 2021, 21, 1; 18-22
    1897-3310
    2299-2944
    Pojawia się w:
    Archives of Foundry Engineering
    Dostawca treści:
    Biblioteka Nauki
    Artykuł
      Wyświetlanie 1-4 z 4

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