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    Wyświetlanie 1-4 z 4
    Tytuł:
    An Impact of Technological Conditions on Surface Burning in Grinding of the Orbit
    Autorzy:
    Stančeková, Dana
    Mrázik, Jozef
    Rybicka, Iwona
    Náprstková, Nataša
    Kraus, Pavel
    Powiązania:
    https://bibliotekanauki.pl/articles/101908.pdf
    Data publikacji:
    2018
    Wydawca:
    Stowarzyszenie Inżynierów i Techników Mechaników Polskich
    Tematy:
    grinding
    orbit
    quality
    burning
    szlifowanie
    orbita
    jakość
    palenie
    Opis:
    A process of quality development helps us reveal concrete deficiences, an analysis of their origin and realization of required modifications that are needed to solve a concrete problem. One of the aims of quality development of production in bearing industries is to find out an impact of tchnological conditions to form burning of surfaces in grinding of orbits of bearing rings. We try to describe an origin of the problem, to find reasons of burned surfaces in a process of grinding and to propose such technological conditions to avoid above-stated problems and to produce the least possible number of non-identical workpieces. To lower a number of burnings in grinding of the orbit to zero percentage is not real, however, we have to try to get a minimal number of parts with damaged surface.
    Źródło:
    Advances in Science and Technology. Research Journal; 2018, 12, 4; 19-27
    2299-8624
    Pojawia się w:
    Advances in Science and Technology. Research Journal
    Dostawca treści:
    Biblioteka Nauki
    Artykuł
    Tytuł:
    Specific Cutting Conditions of 100Cr6 Steel Grinding and Selected Final Roughness Parameters
    Autorzy:
    Náprstková, Nataša
    Novák, Martin
    Sviantek, Jan
    Powiązania:
    https://bibliotekanauki.pl/articles/102739.pdf
    Data publikacji:
    2020
    Wydawca:
    Stowarzyszenie Inżynierów i Techników Mechaników Polskich
    Tematy:
    hardened steel
    final surface
    roughness
    grinding
    stal hartowana
    powierzchnia końcowa
    chropowatość
    szlifowanie
    Opis:
    Grinding of hardened steels is often an important used technology at finishing. Products made from these materials in mechanical engineering are often used, and a quality of the workpiece surface roughness after grinding is one of the important parameters that to us speaks about the quality of the machining process. The paper deals with the influence of the selected cutting conditions when grinding bearing steel 100Cr6 (EN 10027–1) on their machined surface roughness.
    Źródło:
    Advances in Science and Technology. Research Journal; 2020, 14, 2; 184-189
    2299-8624
    Pojawia się w:
    Advances in Science and Technology. Research Journal
    Dostawca treści:
    Biblioteka Nauki
    Artykuł
    Tytuł:
    Influence of REDM parameters on surface shape
    Autorzy:
    Gulbinowicz, Zbigniew
    Goroch, Olgierd
    Powiązania:
    https://bibliotekanauki.pl/articles/103246.pdf
    Data publikacji:
    2018
    Wydawca:
    Stowarzyszenie Inżynierów i Techników Mechaników Polskich
    Tematy:
    Rotary Electrical Discharge Machining
    Abrasive Electrodischarge Grinding
    Rotary Electrochemical Arc/Discharge Machining – RECAM/RCDM
    obrotowa obróbka elektroiskrowa
    szlifowanie elektroiskrowe
    obrotowa elektrochemiczna obróbka łukowo-wyładowcza RECAM/RCDM
    Opis:
    The paper presents the impact of selected machining parameters on surface’s shape after machining in REDM (Rotary Electrical Discharge Machining). A mathematical model describing the influence of REDM parameters on the final shape and the relative tool-electrode wear is presented. Influence of REDM parameters on the relative tool-electrode wear and the final shape was determined in experimental practice. Results of computer simulation have been confirmed in experimental practice.
    Źródło:
    Advances in Science and Technology. Research Journal; 2018, 12, 2; 89-96
    2299-8624
    Pojawia się w:
    Advances in Science and Technology. Research Journal
    Dostawca treści:
    Biblioteka Nauki
    Artykuł
    Tytuł:
    Influence of Grain Size and Feed Rate on Selected Aspects of Corundum Ceramic Grinding Using Spherical Diamond Heads
    Autorzy:
    Szajna, Artur
    Bazan, Anna
    Powiązania:
    https://bibliotekanauki.pl/articles/2023780.pdf
    Data publikacji:
    2021
    Wydawca:
    Stowarzyszenie Inżynierów i Techników Mechaników Polskich
    Tematy:
    grinding
    corundum ceramics
    spherical diamond head
    grinding wheel wear
    szlifowanie
    korund ceramiczny
    głowica diamentowa sferyczna
    zużycie ściernicy
    Opis:
    The article presents the results of experimental research on the grinding of corundum ceramics in the pre-sintered state, with spherical diamond heads. The aim of the experiment was to determine the effect of grain size and feed rate on selected aspects of the grinding process of corundum ceramics with the use of spherical diamond heads. In the experiment, grinding wheels with a ball diameter of 3 mm and different grain sizes were used; the grain numbers were D64, D91, D126 and D181. The tests were carried out on the Ultrasonic 20 Linear machining center at a constant rotational rate of the grinding wheel n = 38,000 rpm and a grinding depth of 30 µm. The feed rate was set on 3 values: 200, 400 and 600 mm / min. During the research, the process temperature was recorded with a thermal imaging camera. The topography of grinding wheels before and after the grinding process and the topography of the ground surface were also measured. The parameters Sa and Ŝz (Ŝz= Spk+Sk+Svk) were used to characterize the grinding heads. The conducted analyses showed the dependence of the parameters Sa and Ŝz of new grinding heads on the grain size described by the quadratic function (R^(2 )≥0.94). Statistically significant changes in the parameters Sa and Ŝz on the cutting surface of the grinding wheel, which occurred as a result of its wear, were observed. There was no significant relationship between the feed rate and the wear of grinding heads, probably due to the relatively small volume of the material removed. A positive correlation between the Sa and Ŝz parameters of the ground object and the grain size was observed. The research also showed an increase in the process temperature with an increase in the feed rate and an increase in the grain size.
    Źródło:
    Advances in Science and Technology. Research Journal; 2021, 15, 4; 149-159
    2299-8624
    Pojawia się w:
    Advances in Science and Technology. Research Journal
    Dostawca treści:
    Biblioteka Nauki
    Artykuł
      Wyświetlanie 1-4 z 4

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