| Abstrakt: |
Environmental-friendly liquid carbon dioxide (LCO2) and biodegradable coconut oil–based minimum quantity lubrication (MQL) technique play a significant role in green machining compared to conventionally polluting cutting fluids. In this work, analysis of the drilling performance was made for super duplex stainless steel (SDSS) which finds use in numerous industrial applications in marine, petrochemical, and oil industries. Input parameters chosen were the cutting velocity of 60 m/min, feed rate of 0.03, 0.05, 0.07 mm/rev, and varying environmental conditions such as LCO2, MQL, and flood coolant. Comparison between output parameters and analysis was made in all the environmental conditions based on cutting temperature (T), surface topography, surface roughness (Ra), tool wear, and chip morphology. The application of LCO2-based drilling process resulted in the dwindling of the cutting temperature (T), improved surface finish, and better chip breakability in comparison to other drilling conditions. Using a scanning electron microscope (SEM), the LCO2 condition displays the least amount of flank and crater wear. [ABSTRACT FROM AUTHOR] |
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