HIGH-PERFORMANCE NEAR-DRY MACHINING BY TRIBOLOGICAL BEHAVIOR INVESTIGATION OF OXYGEN-INCLUDING COMPOUNDS AND ATMOSPHERE CONTROL

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Regarding high-performance near-dry machining which can considerably decrease the amount of cutting fluids and is therefore environmentally friendly, this study found out the tribological behavior of oxygen-including compounds such as esters, alcohols and acids used as a cutting lubricant. Further, the investigator developed an optimal near-dry system mounting a minimal quantity lubrication (MQL) mist generator with a humidifier for machining of aluminum alloys and provided the possibility that a hybrid mist supply method could be a suitable and flexible near-dry system for machining of difficult-to-cut materials such as stainless steels and titanium alloys.