Abstract
Aiming at the problems of serious tool wear when ceramic tools are cutting hardened steel. The effects of SiC nanofluid on the cutting performance of Al2O3/TiC ceramic tools were investigated in terms of cutting temperature, surface roughness, cutting force, the friction of coefficient and tool wear based on Nanofluid Minimum Quantity Lubrication Technology (NMQL). It was found that the use of SiC nanofluid minimum quantity lubrication (SiC-NMQL) has the ability to reduce ceramic tool wear compared to dry cutting. Under the equal-distance cutting length, the tool with NMQL technology can reduce the wear by 55.1 %, the cutting temperature by 41.5 %, and the surface roughness by 19.2 % at a higher cutting speed. In addition, by further studying the effect of different SiC particle sizes in nanofluids on ceramic tool life, it was found that nano-scale SiC increased the life of ceramic tools by 44.4 %‑46.7 %, which was 12.2 %‑14 % higher than that of sub-micron SiC.
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