Influence of duplex jets MQL and nano-MQL cooling system on machining performance of Nimonic 80A

Nickel based super alloys are considered as difficult to machine materials. These days, the sustainable cooling system are applied at the cutting zone for enhancing the machining performance of nickel based super alloys. Therefore, the present work focusses on the machining aspects of Nimonic 80A under different cooling conditions. Moreover, the turning experiments were performed under dry, minimum quantity lubrication (MQL different positions) and nano-MQL (different positions) conditions and the influence of nozzle position during MQL and nano-MQL were investigated. The tool wear, surface roughness, mechanism promoting tool wear, power consumption and chips morphology were investigated under these subjected conditions. The outcomes of this study state that the position of MQL nozzles plays an important role to improve the machining performance of Nimonic-80 alloy. The total tool wear is approximately 60% better for nano-MQL (mixed direction) than dry conditions. The results also stated that abrasion and adhesion are prompting tool wear mechanisms observed under dry conditions.

Automated summary

This study focused on the machining performance of Nimonic 80A under different cooling conditions, specifically evaluating the impact of MQL nozzle position on tool wear and the benefits of nano-MQL. Results showed that nozzle position significantly influences machining performance, with nano-MQL reducing tool wear by approximately 60% compared to dry conditions. Additionally, the mechanisms of abrasion and adhesion were identified as key factors promoting tool wear under dry conditions.