Abstract
In the present work, two sustainable machining techniques namely Minimum Quantity Lubrication (MQL) and dry machining were investigated during turning of AISI D2 steel material using tungsten carbide tools. Cutting velocity, feed rate and depth of cut were considered as turning process variables whereas cutting temperature, tool rake wear, tool flank wear and surface roughness were taken as turning process performance characteristics for investigation purpose. Based on the obtained results it was found that MQL machining technique significantly controlled the cutting temperature, tool rake wear, tool flank wear and surface roughness values to a maximum of 46%, 22%, 23% and 35% when compared to dry machining condition. It was noticed that MQL cooling technique uses tiny quantity of coolant and contributes for sustainable requirements in present industry. Further, it was observed that more chip entanglement marks as major surface defectives and edge chipping as major tool wear mechanism in dry machining.
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