Media-assisted machining processes using nano-fluids. Part 2: Examples of the influence of nano-fluids on the cutting process
Hybrydowe procesy skrawania wspomagane nanocieczami. Część 2: Przykłady wpływu nanocieczy na proces skrawania *
Mechanik nr 03/2021 - Nowości w obróbce skrawaniem
ABSTRACT: The comprehensive knowledge of the applications of nano-fluids for hybrid machining processes assisted by liquid media, which, in general, are applied in MQL systems is presented. In the first part of the article properties of nano-additives, which are added to base cutting fluids (such as vegetable and mineral oils and emulsion), and their influence on the performance of machining processes were outlined. The tribological mechanisms including rolling and plowing of the nano-particles in the contact zones, as well as resulting thermal influences were characterized. In the second part of the article, some practical examples of the possible influences of different nano-fluids on the cutting temperature, tool wear and tool life, surface roughness and surface quality are provided and discussed. It was concluded that nano-fluids with graphene and carbon nanotubes additives are very effective in improving process behaviour.
KEYWORDS: nano-particles, nano-fluids, MQL, machining, grinding
STRESZCZENIE: Przedstawiono zwięzłe informacje na temat zastosowania nanocieczy do wspomagania hybrydowych procesów skrawania mediami ciekłymi, które zasadniczo znalazły zastosowanie w minimalnym smarowaniu/chłodzeniu MQL. W pierwszej części artykułu omówiono właściwości dodawanych do cieczy bazowych (olejów roślinnych i mineralnych oraz emulsji) nanocząstek i ich wpływ na przebieg procesu skrawania. Scharakteryzowano mechanizmy tribologiczne w strefie kontaktu i pochodne oddziaływania termiczne. W drugiej części artykułu zostaną opisane praktyczne przykłady wpływu nanocieczy na temperaturę skrawania, przebieg zużycia i trwałość ostrza oraz chropowatość i jakość powierzchni. Wykazano dużą efektywność zastosowania nanocieczy z dodatkami grafenu i nanorurek.
SŁOWA KLUCZOWE: nanocząstki, nanociecze, ciecze obróbkowe, MQL, skrawanie, szlifowanie
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DOI: https://doi.org/10.17814/mechanik.2021.3.5
* Artykuł recenzowany