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Wyszukujesz frazę "dry turning" wg kryterium: Temat


Wyświetlanie 1-5 z 5
Tytuł:
The experimental investigation of surface roughness after dry turning of steel S235
Autorzy:
Molenda, Justyna
Powiązania:
https://bibliotekanauki.pl/articles/245799.pdf
Data publikacji:
2019
Wydawca:
Instytut Techniczny Wojsk Lotniczych
Tematy:
dry turning
turning parameters
turning results
surface roughness
arithmetic average surface roughness value
Opis:
Nowadays lot of scientific work inspired by industry companies was done with the aim to avoid the use of cutting fluids in machining operations. The reasons were ecological and human health problems caused by the cutting fluid. The most logical solution, which can be taken to eliminate all of the problems associated with the use of cooling lubricant, is dry machining. In most cases, however, a machining operation without lubricant finds acceptance only when it is possible to guarantee that the part quality and machining times achieved in wet machining are equalled or surpassed. Surface finish has become an important indicator of quality and precision in manufacturing processes and it is considered as one of the most important parameter in industry. Today the quality of surface finish is a significant requirement for many workpieces. Thus, the choice of optimized cutting parameters is very important for controlling the required surface quality. In the present study, the influence of different machining parameters on surface roughness has been analysed. Experiments were conducted for turning, as it is the most frequently used machining process in machine industry. All these parameters have been studied in terms of depth of cut (ap), feed rate (f) and cutting speed (vc). As workpiece, material steel S235 has been selected. This work presents results of research done during turning realised on conventional lathe CDS 6250 BX-1000 with severe parameters. These demonstrate the necessity of further, more detailed research on turning process results.
Źródło:
Journal of KONES; 2019, 26, 4; 179-184
1231-4005
2354-0133
Pojawia się w:
Journal of KONES
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Rodzaj płynu roboczego w obróbce skrawaniem a efekty obróbki
Autorzy:
Kowalczyk, J.
Madej, M.
Powiązania:
https://bibliotekanauki.pl/articles/404549.pdf
Data publikacji:
2018
Wydawca:
Wydawnictwo AWART
Tematy:
biodegradowalna ciecz chłodząco-smarująca
toczenie na sucho
toczenie poprzeczne
dry turning
cutting tool technology
biodegradable
Opis:
W artykule przedstawiono rezultaty badań dotyczących cech użytkowych nowej biodegradowalnej cieczy chłodzącosmarującej. Jej cechy porównano z cieczą tradycyjną. Porównano także wpływ obydwóch cieczy na topografię obrobionych powierzchni, a uzyskane wyniki porównano z efektami obróbki na sucho. Stwierdzono, że nowa ekologiczna ciecz chłodząco-smarująca spełnia lepiej niż ciecz tradycyjna oczekiwane cechy. Topografia obrobionych powierzchni także pozwala na efektywną realizację funkcji oczekiwanych przez węzeł tribologiczny.
Źródło:
Obróbka Metalu; 2018, 4; 41-45
2081-7002
Pojawia się w:
Obróbka Metalu
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Experimental Investigations of Tool Wear in Vibration-Assisted Turning of Inconel 718
Autorzy:
Dodla, Srihari
Powiązania:
https://bibliotekanauki.pl/articles/2125542.pdf
Data publikacji:
2022
Wydawca:
Polska Akademia Nauk. Czytelnia Czasopism PAN
Tematy:
Inconel 718
ultrasonic assisted turning
dry machining
deviation
cutting forces
temperature
Opis:
In the current paper, the effect of tool wear for a constant period of time (360 s) during conventional and ultrasonic assisted machining of Inconel 718 is investigated in terms of cutting forces, temperature, and deviation measurements. For fixed process parameters turning experiments have been performed with and without the application of tangential vibration. Ultrasonic assisted turning (UAT) experiments have been compared with conventional turning (CT). The experimental results reveal that cutting forces and temperature increase linearly in the case of UAT whereas remaining constant in CT for a constant period of time. Besides the tool wear rate in the case of UAT is more than that in the CT.
Źródło:
Archives of Metallurgy and Materials; 2022, 67, 3; 949--953
1733-3490
Pojawia się w:
Archives of Metallurgy and Materials
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Evaluation of the Surface Topography of Ti6Al4V Alloy after the Finish Turning Process under Ecological Conditions
Autorzy:
Maruda, Radosław W.
Leksycki, Kamil
Wojciechowski, Szymon
Feldshtein, Eugene
Łukaszewicz, Andrzej
Powiązania:
https://bibliotekanauki.pl/articles/2201929.pdf
Data publikacji:
2023
Wydawca:
Stowarzyszenie Inżynierów i Techników Mechaników Polskich
Tematy:
dry machining
MQL
MQL method
finish turning
surface topography
Ti6Al4V titanium alloy
Opis:
This paper describes findings in the surface topography of Ti6Al4V alloy after finish turning process under dry and MQL (minimum quantity lubrication) machining. The research was fulfilled in the range of variable feeds per revolution of 0.005-0.25 mm/rev and cutting speeds of 40-100 m/min using the depth of cut of 0.25 mm that fits finish processing conditions. The test plan was developed on the way to use the Parameter Space Investigation (PSI) method. The topography features were measured by a Sensofar S Neox optical profilometer using the Imaging Confocal Microscopy technique. Ra parameters and surface roughness profiles as well as 2D images and contour maps were analyzed. Under the studied machining conditions, lower Ra roughness parameters are obtained in the feed rate of 0.005-0.1 mm/rev and cutting speeds of 40-60 m/min. In comparison with dry machining, up to 17% reduction in Ra parameter values was obtained using the MQL method and vc = 70 m/min and f = 0.127 mm/rev as well as vc = 47.5 m/min and f = 0.22 mm/rev. Depending on the machining conditions, peaks and pits as well as feed marks typical for the turning process are observed on the machined surfaces.
Źródło:
Advances in Science and Technology. Research Journal; 2023, 17, 2; 63--70
2299-8624
Pojawia się w:
Advances in Science and Technology. Research Journal
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Formation of Surface Topography During Turning of AISI 1045 Steel Considering the Type of Cutting Edge Coating
Autorzy:
Szczotkarz, Natalia
Maruda, Radosław W.
Dębowski, Daniel
Leksycki, Kamil
Wojciechowski, Szymon
Khanna, Navneet
Królczyk, Grzegorz M.
Powiązania:
https://bibliotekanauki.pl/articles/2023489.pdf
Data publikacji:
2021
Wydawca:
Stowarzyszenie Inżynierów i Techników Mechaników Polskich
Tematy:
turning
surface topography
dry machining
titanium coating
AISI 1045 steel
toczenie
topografia powierzchni
obróbka na sucho
powłoka tytanowa
stal AISI 1045
Opis:
The paper presents evaluation of the surface topography obtained after turning of AISI 1045 steel with the use of cemented carbide tools diversified in terms of applied titanium-based coatings. During the research, three types of coatings deposited with the PVD method on a P25 sintered carbide insert were compared: nitride-titanium TiN, nitride-aluminum-titanium TiAlN and carbon-titanium TiC in a wide range of variable cutting speeds 125 - 325 m/min and variable feeds 0.05 - 0.25 mm/rev. The quality of the machined surface was assessed on the Sensofar S neox System optical profile meter using the confocal method. The paper presents the results of 3D parameters, contour maps, isometric views and material ratio curves. The surface topography analysis showed that for the TiAlN coated insert, lower surface roughness parameters were observed in the range of lower cutting speeds and higher feeds, while for higher cutting speeds, lower values of the selected 3D parameters were found for the insert with TiC coating. For the insert with TiC coating, the most even distribution of the valleys and ridges of the machined surface roughness was also observed. The research results determined the range of cutting parameters that allow the selection of the appropriate type of titanium-based coating when machining AISI 1045 steel.
Źródło:
Advances in Science and Technology. Research Journal; 2021, 15, 4; 253-266
2299-8624
Pojawia się w:
Advances in Science and Technology. Research Journal
Dostawca treści:
Biblioteka Nauki
Artykuł
    Wyświetlanie 1-5 z 5

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