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Wyszukujesz frazę "cubic Boron Nitride" wg kryterium: Temat


Wyświetlanie 1-2 z 2
Tytuł:
Cutting Mechanics when Turning Powder Metallurgy Produced Nickel-Cobalt Base Alloy with a Cubic Boron Nitride Insert
Autorzy:
Daź, Waldemar
Habrat, Witold
Tymczyszyn, Jarosław
Krupa, Krzysztof
Powiązania:
https://bibliotekanauki.pl/articles/2201808.pdf
Data publikacji:
2022
Wydawca:
Stowarzyszenie Inżynierów i Techników Mechaników Polskich
Tematy:
tool wear
cutting forces
surface roughness
nickel-cobalt alloys
residual stress
cubic Boron Nitride
cubic Boron Nitride tool
Opis:
For the critical aero-engine parts it’s important to understand influence of cutting tools, cutting parameters, tool ware etc. on near surface condition which highly affect fatigue strength and at the same part life-time. New material implemented for the latest designs of aero-engines parts generate challenges for machining processes to fulfil strict requirements of aviation standards. Finish machining is the most important stage of process influencing fatigue strength. cBN tool are often used for final stage of machining. The objective of this study was analysis of cutting mechanics during finish turning of modern nickel-cobalt based alloy with cBN insert. Observations of cutting tool wear and cutting parameters influence on the components of cutting force, surface roughness and residual stress are presented in this paper.
Źródło:
Advances in Science and Technology. Research Journal; 2022, 16, 4; 163--175
2299-8624
Pojawia się w:
Advances in Science and Technology. Research Journal
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Tribological Properties of WCCo/cBNComposites Produced by Pulse Plasma Sintering
Autorzy:
Wachowicz, J.
Truszkowski, T.
Rosiński, M.
Ossowski, M.
Skrabalak, G.
Cyrankowski, M.
Powiązania:
https://bibliotekanauki.pl/articles/355634.pdf
Data publikacji:
2018
Wydawca:
Polska Akademia Nauk. Czytelnia Czasopism PAN
Tematy:
pulse plasma sintering
cubic Boron Nitride
cBN
cemented carbide
composite
Opis:
In view of their advantageous properties (high hardness, good frictional wear resistance, chemical and thermal stability at elevated temperatures), cubic boron nitride (cBN) and tungsten carbide (WC) are commonly used for the fabrication of cutting tools. The composites were consolidated at a temperature of 1100°C under a load of 100 MPa for 10 min. The density of the thus produced material was close to the theoretical value (about 99.6%), and the hardness HV30 was about 1950. The phases identified in the composite were WC, Co, and cBN. Microstructural examinations revealed that numerous trans-crystalline fractures through the cBN particles occurred in the material. The present study is concerned with the wear of the WCCo and WCCo/cBN composites. Comparative tribological examinations were performed in a tribological tester using the ball-on-disc arrangement under the conditions of dry friction. The counterspecimens were steel and Al2 O3 balls. The tests were conducted under a unit load of 10 N. After the tests, the surface of the samples was examined to describe the wear mechanisms active in various composite materials.
Źródło:
Archives of Metallurgy and Materials; 2018, 63, 4; 1763-1768
1733-3490
Pojawia się w:
Archives of Metallurgy and Materials
Dostawca treści:
Biblioteka Nauki
Artykuł
    Wyświetlanie 1-2 z 2

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