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Wyszukujesz frazę "tool temperature" wg kryterium: Temat

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    Wyświetlanie 1-3 z 3
    Tytuł:
    Testing of Air-Cooling Efficiency of the Underside of a Turning Tool Carbide Insert in EN-GJL 250 Cast Iron Turning Operations
    Autorzy:
    Bartoszuk, Marian
    Prażmowski, Mariusz
    Hurey, Igor
    Powiązania:
    https://bibliotekanauki.pl/articles/2201829.pdf
    Data publikacji:
    2022
    Wydawca:
    Stowarzyszenie Inżynierów i Techników Mechaników Polskich
    Tematy:
    cast-iron machining
    air cooling systems
    cutting temperature
    surface roughness
    tool wear
    Opis:
    This article shows the results of research on the effectiveness of operation of an original tool air cooling system in cutting. A case of turning EN-GJL 250 cast iron with TH10 tungsten carbide cutting inserts without protective coatings was selected for testing. The paper gives constructional details of the tested tool cooling system and discusses the principle of its operation. The research carried out has shown that this way of cooling the cutting insert causes a significant decrease in temperature in all sub-areas of the cutting zone. In addition, air cooling has been proven to significantly reduce cutting tool wear and slightly improve the roughness of the machined surface. The results obtained showed that the proposed method of cooling can be successfully used in the treatment of grey cast iron. In the future, it may serve as a basis for the construction of a professional cooling system for industrial applications.
    Źródło:
    Advances in Science and Technology. Research Journal; 2022, 16, 4; 1--9
    2299-8624
    Pojawia się w:
    Advances in Science and Technology. Research Journal
    Dostawca treści:
    Biblioteka Nauki
    Artykuł
    Tytuł:
    Strategies of Heating and Hardening External Corners on the Example of Bending Tools for Press Brakes
    Autorzy:
    Nowotyńska, Irena
    Kut, Stanisław
    Powiązania:
    https://bibliotekanauki.pl/articles/2204047.pdf
    Data publikacji:
    2022
    Wydawca:
    Stowarzyszenie Inżynierów i Techników Mechaników Polskich
    Tematy:
    bending tool
    laser hardening
    temperature distributions
    FEM simulation
    finite element method simulation
    Opis:
    In the paper the methods of laser hardening of external tool corners on the example of bending tools for press brakes were presented. The disadvantages and limitations of the most commonly used techniques for guiding a hardening laser light beam are presented, i.e.: (i) in one pass parallel to the tool corner plane symmetry, (ii) in two passes perpendicular to the surfaces adjacent to the corner, and (iii) in one pass perpendicular to the surface adjacent to the corner by using two diode lasers. The microstructure of the tool material after laser and induction hardening was compared. A significant influence of the heating method on the microstructure of the tool material after hardening was demonstrated. The original method of hardening the outer corners of bending tools using a hardening laser beam splitter was subject to a more detailed analysis. The analysis of material heating in simultaneously hardened corner area and adjacent surfaces was carried out using the Marc/Mentat software based on the finite element method. By analyzing the temperature distributions it was shown that if a beam splitter was used, obtaining a continuous and uniform hardened layer (i.e. with comparable hardness, depth, without tempered or non-tempered areas) in the area of the outer corner and adjacent surfaces was possible. In practice, achieving such a layer is conditioned by the correct selection of the size of the k parameter which determines the distance between the separated beams of laser light. Depending on the geometry of the hardened tool corner and the parameters of the hardening laser beam, this distance can be determined experimentally or on the basis of numerical simulation.
    Źródło:
    Advances in Science and Technology. Research Journal; 2022, 16, 5; 250--260
    2299-8624
    Pojawia się w:
    Advances in Science and Technology. Research Journal
    Dostawca treści:
    Biblioteka Nauki
    Artykuł
    Tytuł:
    Temperature Measurement of Modern Cutting Tools During Turning
    Autorzy:
    Grochalski, Karol
    Jabłoński, Piotr
    Talar, Rafał
    Twardowski, Paweł
    Wieczorowski, Michał
    Jakubek, Bartosz
    Rukat, Wojciech
    Powiązania:
    https://bibliotekanauki.pl/articles/103258.pdf
    Data publikacji:
    2020
    Wydawca:
    Stowarzyszenie Inżynierów i Techników Mechaników Polskich
    Tematy:
    cutting tools
    tool wear
    cutting temperature
    temperature measurement
    thermographic techniques
    narzędzia tnące
    zużycie narzędzi
    temperatura cięcia
    pomiar temperatury
    technika termograficzna
    Opis:
    The study presents the influence of the anti-wear coatings and the type of material from which the cutting tools are made of on the cutting temperature occurring on the tool. The cutting tools made of boron nitride and tungsten carbide composite were investigated. The methodology of measuring the cutting temperature using the thermoelement and thermovision techniques was presented. The results of the temperature measurements occurring on the cutting tool in the cutting zone were compared. The paper also presents a method of determining the effective emissivity of the tested tools, necessary for the correct temperature measurement using the non-contact method. The obtained data were interpreted and the relationships described, and then the results obtained were discussed.
    Źródło:
    Advances in Science and Technology. Research Journal; 2020, 14, 4; 37-48
    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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