Informacja

Drogi użytkowniku, aplikacja do prawidłowego działania wymaga obsługi JavaScript. Proszę włącz obsługę JavaScript w Twojej przeglądarce.

Wyszukujesz frazę "iron surface" wg kryterium: Temat


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:
Factors Influencing Cavitation Erosion of NiCrSiB Hardfacings Deposited by Oxy-Acetylene Powder Welding on Grey Cast Iron
Autorzy:
Szala, Mirosław
Walczak, Mariusz
Hejwowski, Tadeusz
Powiązania:
https://bibliotekanauki.pl/articles/2023792.pdf
Data publikacji:
2021
Wydawca:
Stowarzyszenie Inżynierów i Techników Mechaników Polskich
Tematy:
hardness
stainless steel
cavitation erosion
cast iron
surface engineering
powder welding
surface roughness
hardfacing
twardość
stal nierdzewna
erozja kawitacyjna
żeliwo
inżynieria powierzchni
spawanie proszkowe
chropowatość powierzchni
utwardzanie
Opis:
The work presents the results of a study on cavitation erosion (CE) resistance of two NiCrSiB self-fluxing powders deposited by oxy-acetylene powder welding on cast iron substrate grade EN-GJL-200. The mean hardness of deposits A-NiCrSiB, C-NiCrSiB is equal to 908 HV, 399 HV and exceeds those of EN-GJL-200 and X5CrNi18-10 reference specimens 197 HV and 209 HV, respectively. To study CE, the vibratory apparatus has been used and tests were conducted according to the ASTM G32 standard. Cavitation eroded surfaces were examined using a profilometer, optical and scanning electron microscopy. The research indicated that the CE resistance, expressed by the cumulative mass loss decreased in the following order C-NiCrSiB > A-NiCrSiB > X5CrNi18-10 > EN-GJL-200. Therefore, hardfacings were characterised by lower cumulative mass loss, in turn, higher CE resistance than the reference sample and therefore they may be applied as layers to increase resistance to cavitation of cast iron machine components. Results indicate that in the case of multiphase materials, hardness cannot be the main indicator for CE damage prediction while it strongly depends on the initial material microstructure. To qualitatively estimate the cavitation erosion damage (CEd) of NiCrSiB self-fluxing alloys at a specific test time, the following factors should be considered: material microstructure, physical and mechanical properties as well as surface morphology and material loss both estimated at specific exposure time. A general formula for the CEd prediction of NiCrSiB deposits was proposed.
Źródło:
Advances in Science and Technology. Research Journal; 2021, 15, 4; 376-386
2299-8624
Pojawia się w:
Advances in Science and Technology. Research Journal
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Effects of Hard Oxides Reinforcing of Iron-Based MMCs on the Surface Topography Features after Finish Turning
Autorzy:
Maruda, Radosław
Leksycki, Kamil
Feldshtein, Eugene
Sąsiadek, Eryk
Szczotkarz, Natalia
Odważna, Magdalena
Ochał, Kamil
Gradzik, Andrzej
Powiązania:
https://bibliotekanauki.pl/articles/2201900.pdf
Data publikacji:
2023
Wydawca:
Stowarzyszenie Inżynierów i Techników Mechaników Polskich
Tematy:
metal matrix composites
iron-based metal matrix composites
nanooxide reinforcing
Simplex Lattice Design
SLD
finish turning
3D surface topography
Opis:
Effects of Hard Oxides Reinforcing of Iron-Based MMCs on the Surface Topography Features after Finish Turning
Źródło:
Advances in Science and Technology. Research Journal; 2023, 17, 1; 15--22
2299-8624
Pojawia się w:
Advances in Science and Technology. Research Journal
Dostawca treści:
Biblioteka Nauki
Artykuł
    Wyświetlanie 1-3 z 3

    Ta witryna wykorzystuje pliki cookies do przechowywania informacji na Twoim komputerze. Pliki cookies stosujemy w celu świadczenia usług na najwyższym poziomie, w tym w sposób dostosowany do indywidualnych potrzeb. Korzystanie z witryny bez zmiany ustawień dotyczących cookies oznacza, że będą one zamieszczane w Twoim komputerze. W każdym momencie możesz dokonać zmiany ustawień dotyczących cookies