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    Wyświetlanie 1-4 z 4
    Tytuł:
    Optimization of TCF-5 and TJF composite free form surface milling
    Optymalizacja procesu frezowania powierzchni swobodnych kompozytu TCF-5 i TJF
    Autorzy:
    Zębala, W.
    Matras, A.
    Kowalczyk, R.
    Powiązania:
    https://bibliotekanauki.pl/articles/176023.pdf
    Data publikacji:
    2012
    Wydawca:
    Polska Akademia Nauk. Czytelnia Czasopism PAN
    Tematy:
    kompozyty
    frezowanie
    powierzchnia swobodna
    optymalizacja
    composites
    milling
    free-form surface
    optimization
    Opis:
    Paper presents researches of fibre-matrix composite materials machining on the turbine blade example. The main aim of investigations was the free form milling process and its optimization considering the machined surface quality. TCF-5 and TJF composite types were chosen. Different strategy and cutting parameters were applied. The profile of the workpiece was obtained as a result of scanning process of the real surface, using a spatial actual scanner CYCLONE 2 manufactured by Renishaw company.
    W artykule przedstawiono analizę wyników badań obróbki włóknistych materiałów kompozytowych TCF5 i TJF na przykładzie łopatki turbiny. Prowadzono proces frezowania powierzchni swobodnej. Wykonano jego optymalizację, przyjmując kryterium jakości powierzchni obrobionej TCF-5 i TJF. Zastosowano różne strategie i wartości parametrów skrawania. Profil elementu obrabianego uzyskano przez skanowanie rzeczywistej powierzchni przy użyciu skanera CYCLONE 2 firmy Renishaw.
    Źródło:
    Advances in Manufacturing Science and Technology; 2012, 36, 3; 29-41
    0137-4478
    Pojawia się w:
    Advances in Manufacturing Science and Technology
    Dostawca treści:
    Biblioteka Nauki
    Artykuł
    Tytuł:
    Influence of mechanical alloying process on structural, mechanical and tribological behaviours of CNT reinforced aluminium composites – a statistical analysis
    Autorzy:
    Manikandan, P.
    Elayaperumal, A.
    Franklin Issac, R.
    Powiązania:
    https://bibliotekanauki.pl/articles/2173611.pdf
    Data publikacji:
    2021
    Wydawca:
    Polska Akademia Nauk. Czytelnia Czasopism PAN
    Tematy:
    powder metallurgy
    composites
    morphology
    optimization
    wear
    metalurgia proszków
    kompozyt
    morfologia
    optymalizacja
    Opis:
    The mechanical and tribological properties of the Al/CNT composites could be controlled and improved by the method of its fabrication process. This research article deals with the optimization of mechanical and tribological properties of Al/CNT composites, which are fabricated using the mechanical alloying process with the different weight percentage of multi-walled CNT reinforcement. The phase change and the presence of CNT are identified using the X-Ray Diffraction (XRD) analysis. The influence of mechanical alloying process and the multi-walled CNT reinforcement on the mechanical, and tribological behaviours of the Al/CNT composites are studied. The optimal mechanical alloying process parameters and the weight percentage of multi-walled CNT reinforcement for the Al/CNT composite are identified using the Response Surface Methodology (RSM), which exhibits the better hardness, compressive strength, wear rate and Coefficient of Friction (CoF). The Al/CNT composite with 1.1 wt.% of CNT has achieved the optimal responses at the milling speed 301 rpm and milling time 492 minutes with the ball to powder weight ratio 9.7:1, which is 98% equal to the experimental result. This research also reveals that the adhesive wear is the dominant wear mechanism for the Al/CNT composite against EN31 stainless steel but the optimal Al/CNT composite with 1.1 wt.% of multi-walled CNT has experienced a mild abrasive wear.
    Źródło:
    Bulletin of the Polish Academy of Sciences. Technical Sciences; 2021, 69, 2; art. no. e136745
    0239-7528
    Pojawia się w:
    Bulletin of the Polish Academy of Sciences. Technical Sciences
    Dostawca treści:
    Biblioteka Nauki
    Artykuł
    Tytuł:
    Influence of mechanical alloying process on structural, mechanical and tribological behaviours of CNT reinforced aluminium composites – a statistical analysis
    Autorzy:
    Manikandan, P.
    Elayaperumal, A.
    Franklin Issac, R.
    Powiązania:
    https://bibliotekanauki.pl/articles/2128149.pdf
    Data publikacji:
    2021
    Wydawca:
    Polska Akademia Nauk. Czytelnia Czasopism PAN
    Tematy:
    powder metallurgy
    composites
    morphology
    optimization
    wear
    metalurgia proszków
    kompozyt
    morfologia
    optymalizacja
    Opis:
    The mechanical and tribological properties of the Al/CNT composites could be controlled and improved by the method of its fabrication process. This research article deals with the optimization of mechanical and tribological properties of Al/CNT composites, which are fabricated using the mechanical alloying process with the different weight percentage of multi-walled CNT reinforcement. The phase change and the presence of CNT are identified using the X-Ray Diffraction (XRD) analysis. The influence of mechanical alloying process and the multi-walled CNT reinforcement on the mechanical, and tribological behaviours of the Al/CNT composites are studied. The optimal mechanical alloying process parameters and the weight percentage of multi-walled CNT reinforcement for the Al/CNT composite are identified using the Response Surface Methodology (RSM), which exhibits the better hardness, compressive strength, wear rate and Coefficient of Friction (CoF). The Al/CNT composite with 1.1 wt.% of CNT has achieved the optimal responses at the milling speed 301 rpm and milling time 492 minutes with the ball to powder weight ratio 9.7:1, which is 98% equal to the experimental result. This research also reveals that the adhesive wear is the dominant wear mechanism for the Al/CNT composite against EN31 stainless steel but the optimal Al/CNT composite with 1.1 wt.% of multi-walled CNT has experienced a mild abrasive wear.
    Źródło:
    Bulletin of the Polish Academy of Sciences. Technical Sciences; 2021, 69, 2; e136745, 1--9
    0239-7528
    Pojawia się w:
    Bulletin of the Polish Academy of Sciences. Technical Sciences
    Dostawca treści:
    Biblioteka Nauki
    Artykuł
    Tytuł:
    Optimization of two-component armour
    Autorzy:
    Kędzierski, P.
    Morka, A.
    Sławiński, G.
    Niezgoda, T.
    Powiązania:
    https://bibliotekanauki.pl/articles/200962.pdf
    Data publikacji:
    2015
    Wydawca:
    Polska Akademia Nauk. Czytelnia Czasopism PAN
    Tematy:
    optimization
    composites
    numerical simulations
    ballistic protection
    optymalizacja
    kompozyty
    symulacje numeryczne
    ochrona balistyczna
    Opis:
    The paper presents research on optimization of two-layer armour subjected to the normal impact of the 7.62x54 B32 armour piercing (AP) projectile. There were analysed two cases in which alumina Al2O3 was supported by aluminium alloy AA2024-T3 or armour steel Armox 500T. The thicknesses of layers were determined to minimize the panel areal density whilst satisfying the constraint, which was the maximum projectile velocity after panel perforation. The problem was solved through the utilization of LS-DYNA, LS-OPT and HyperMorph engineering software. The axisymmetric model was applied to the calculation in order to provide sufficient discretization. The response of the aluminium alloy, armour steel and projectile material was described with the Johnson-Cook model, while the one of the alumina with the Johnson-Holmquist model. The study resulted in the development of a panel optimization methodology, which allows the layer thicknesses of the panel with minimum areal density to be determined. The optimization process demonstrated that the areal density of the lightest panel is 71.07 and 71.82 kg/m2 for Al2O3-Armox 500T and Al2O3-AA2024-T3, respectively. The results of optimization process were confirmed during the experimental investigation.
    Źródło:
    Bulletin of the Polish Academy of Sciences. Technical Sciences; 2015, 63, 1; 173--179
    0239-7528
    Pojawia się w:
    Bulletin of the Polish Academy of Sciences. Technical Sciences
    Dostawca treści:
    Biblioteka Nauki
    Artykuł
      Wyświetlanie 1-4 z 4

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