Experimental Investigation of Surface Roughness in End Milling of AA6061 Alloy with Flooded Cooling and Minimum Quantity Lubrication (MQL) Technique

This article presents an experimental investigation on the effect of surface roughness during end milling of aluminium alloy 6061 grade in minimum quantity lubrication (MQL) technique. The MQL technique is becoming increasingly more popular due to the safety of the environment. The cutting speed, depth of cut, feed rate and MQL flow rate are selected input parameters in this study. This experiment was conducted based on the Orthogonal Array (L27). The comparative effectiveness of surface roughness was investigated between MQL technique end milled components and flooded lubrication end milled components. The findings of this study show that surface roughness values have a significant difference upon application of the MQL technique.