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Wyszukujesz frazę "cutting area" wg kryterium: Temat

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    Wyświetlanie 1-6 z 6
    Tytuł:
    Methodological problems of temperature measurement in the cutting area during milling magnesium alloys
    Autorzy:
    Kuczmaszewski, J.
    Zagórski, I.
    Powiązania:
    https://bibliotekanauki.pl/articles/407442.pdf
    Data publikacji:
    2013
    Wydawca:
    Polska Akademia Nauk. Czytelnia Czasopism PAN
    Tematy:
    milling
    magnesium alloys
    aviation elements
    machinability
    temperature in cutting area
    Opis:
    This paper presents a literature review on temperature measurement during milling of magnesium alloys as well as other structural materials. Methodology and temperature measurement methods used in own tests are discussed in this paper. Selected test results for each method of temperature measurement in the cutting area are demonstrated.
    Źródło:
    Management and Production Engineering Review; 2013, 4, 3; 26-33
    2080-8208
    2082-1344
    Pojawia się w:
    Management and Production Engineering Review
    Dostawca treści:
    Biblioteka Nauki
    Artykuł
    Tytuł:
    Chip Temperature Measurement in the Cutting Area During Rough Milling Magnesium Alloys with a Kordell Geometry End Mill
    Autorzy:
    Kuczmaszewski, Józef
    Zagórski, Ireneusz
    Zgórniak, Piotr
    Powiązania:
    https://bibliotekanauki.pl/articles/2172352.pdf
    Data publikacji:
    2022
    Wydawca:
    Stowarzyszenie Inżynierów i Techników Mechaników Polskich
    Tematy:
    magnesium alloys
    milling
    temperature in cutting area
    chip temperature
    infrared camera
    Opis:
    The paper presents the results of measurements of chip temperature in the cutting zone during milling. The main aim of the research was to record and compare the maximum chip temperature in consecutive frames of thermal images. An additional goal may be the influence of changes in technological parameters on the temperature of the chips in the cutting zone. Two grades of magnesium alloys were used for the tests: AZ31 and AZ91HP. The research used a carbide milling cutter with an additional chip breaker, dedicated to effective roughing of light alloys. These tool geometries can assist in the high-performance machining of magnesium alloys by efficiently splitting the chip and consequently reducing friction in the machining zone. This can reduce the cutting area temperature. The results of the research work were showed as exemplary "time" charts, box-plot charts and a summary table, which additionally included an error analysis of the measurement method. On the basis of the tests and measurements performed, it can be concluded that despite the observed chip fragmentation, the obtained temperatures can be defined as the so-called safe milling areas. During the machining tests, the risk of chip ignition during machining was not observed, also the characteristic melting points, which clearly indicates the safety of the milling process of these alloys. It has been observed that with the increase of vc and fz, there was no increase in the maximum temperature of the chip in the cutting area. This situation only occurs when increasing ap.
    Źródło:
    Advances in Science and Technology. Research Journal; 2022, 16, 2; 109--119
    2299-8624
    Pojawia się w:
    Advances in Science and Technology. Research Journal
    Dostawca treści:
    Biblioteka Nauki
    Artykuł
    Tytuł:
    Thermographic study of chip temperature in high-speed dry milling magnesium alloys
    Autorzy:
    Kuczmaszewski, J.
    Zagórski, I.
    Zgórniak, P.
    Powiązania:
    https://bibliotekanauki.pl/articles/406699.pdf
    Data publikacji:
    2016
    Wydawca:
    Polska Akademia Nauk. Czytelnia Czasopism PAN
    Tematy:
    machining
    magnesium alloys
    manufacturing processes
    high efficiency
    temperature
    cutting area
    infrared camera
    Opis:
    This paper presents an overview of the state of knowledge on temperature measurement in the cutting area during magnesium alloy milling. Additionally, results of own research on chip temperature measurement during dry milling of magnesium alloys are included. Tested magnesium alloys are frequently used for manufacturing elements applied in the aerospace industry. The impact of technological parameters on the maximum chip temperature during milling is also analysed. This study is relevant due to the risk of chip ignition during the machining process.
    Źródło:
    Management and Production Engineering Review; 2016, 7, 2; 86-92
    2080-8208
    2082-1344
    Pojawia się w:
    Management and Production Engineering Review
    Dostawca treści:
    Biblioteka Nauki
    Artykuł
    Tytuł:
    Możliwość ograniczenia występowania szeliniaka sosnowca i mniejszego zrębami zagospodarowanymi różnymi sposobami
    Possibility of reduction of large spruce and large pine weevils abundance on cutting areas using different methods of soil preparation
    Autorzy:
    Skłodowski, J.
    Powiązania:
    https://bibliotekanauki.pl/articles/1009538.pdf
    Data publikacji:
    2010
    Wydawca:
    Polskie Towarzystwo Leśne
    Tematy:
    lesnictwo
    ochrona lasu
    drzewostany sosnowe
    szkodniki roslin
    szeliniak sosnowiec
    Hylobius abietis
    szeliniak swierkowiec
    Hylobius pinastri
    szeliniak mniejszy zob.szeliniak swierkowiec
    ograniczanie wystepowania
    zreby
    przygotowanie gleby
    hylobius abietis
    cutting area
    soil preparation
    Opis:
    The trapping of weevils on cutting areas using different soil preparation methods was tested. A soil cutter mixing mineral soil with humus best stimulated the weevil trapping. The methods connected with breaking up the humus layer: manual disk ploughing or using an active plough and ploughing with deep furrowing (strips) stimulated weevil trapping to the smallest degree. The piles of branches on the felled areas had no effect on the increase of weevil trapping, while the winter felling, unlike the summer one, increased the trapping level. On the basis of the results obtained in the study the specified methods to improve the cutting management were proposed.
    Źródło:
    Sylwan; 2010, 154, 01; 24-32
    0039-7660
    Pojawia się w:
    Sylwan
    Dostawca treści:
    Biblioteka Nauki
    Artykuł
    Tytuł:
    Występowanie i przemieszczanie się biegaczowatych na zrębie z pozostawionymi kępami starodrzewu
    The distribution and movement of ground beetles on a cutting area with retained old-growth clumps
    Autorzy:
    Skłodowski, J.
    Powiązania:
    https://bibliotekanauki.pl/articles/1013543.pdf
    Data publikacji:
    2008
    Wydawca:
    Polskie Towarzystwo Leśne
    Tematy:
    gatunki nielesne
    Puszcza Czluchowska
    lesnictwo
    bioindykacja
    drzewostany sosnowe
    kolonizacja
    gatunki lesne
    kepy drzew
    bioindykatory
    biegaczowate
    wedrowki zwierzat
    lownosc
    zrab zupelny
    Carabidae
    cutting area
    old−growth clumps
    carabidae
    movement
    colonisation
    semivariogram
    Opis:
    The colonisation and movement of ground beetles on a cutting area with two retained old−growth clumps of 4 and 7 are were investigated using the CMR method. The method enabled to evaluate the trapping level of small non−forest species. The paper discusses the use of old−growth clumps during the colonisation of the cutting area by big forest species and concurrent "avoidance" of these areas by small non−forest species. Stimulating role of the parallel and perpendicular ploughing furrows in the process of the colonisation the cutting area by forest and non−forest species as well as differences in their perception of site micro−differences were also analysed. The results confirmed assumed hypothesis in case of non−forest species (avoidance of clumps), forest species C. arcensis and non−forest species P. caerulescens and individuals from the genera Amara and Harpalus as far as the influence of furrows is concerned. Differences in the perception of the cutting area between forest and non−forest species were also proved.
    Źródło:
    Sylwan; 2008, 152, 09; 31-43
    0039-7660
    Pojawia się w:
    Sylwan
    Dostawca treści:
    Biblioteka Nauki
    Artykuł
    Tytuł:
    Acclimation of acacia hybrid (Acacia mangium x Acacia auriculiformis) vegetative propagules to soil water deficits
    Autorzy:
    Alamgir, Kabir M
    Rafiqul Hoque, A.T.M.
    Kamaluddin, M.
    Powiązania:
    https://bibliotekanauki.pl/articles/41229.pdf
    Data publikacji:
    2006
    Wydawca:
    Polska Akademia Nauk. Instytut Dendrologii PAN
    Tematy:
    acacia
    acacia hybrid
    Acacia mangium x Acacia auriculiformis
    acclimation
    soil water deficit
    rooted cutting
    biomass
    leaf area
    specific leaf area
    water deficit
    soil moisture
    Bangladesh
    Opis:
    The aim of the present work was to investigate the acclimation potential of acacia hybrid (Acacia mangium Willd×Acacia auriculiformis A.Cunn.ex Benth)vegetative propagules to soil water stress in the nursery of Institute of Forestry and Environmental Sciences, Chittagong University. Acacia hybrid showed significant decrease in total plant biomass in two months water-stressed conditions. Allocation of assimilates to root growth relative to shoot found to be an important acclimation mechanism. Leaf area ratio (LAR)increased under water-stressed plants with simultaneous increase in specific leaf area (SLA)but almost no change in leaf weight ratio (LWR). Significant increase in LAR with limited water supply by increasing SLA was likely to be an important acclimation potential since this relative increase in leaf area compensated, at least partially, for a lower photosynthesis under water-stressed conditions aswas evident from decreased mean total biomass under water-stressed regimes.
    Źródło:
    Dendrobiology; 2006, 56; 37-43
    1641-1307
    Pojawia się w:
    Dendrobiology
    Dostawca treści:
    Biblioteka Nauki
    Artykuł
      Wyświetlanie 1-6 z 6

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