A Review of Minimum Quantity Lubricant on Machining Performance

This paper reviews the effect of minimum quantity lubricant (MQL) on machining performance. Minimum quantity of lubrication in machining is an established alternative to completely dry or flood lubricating system from the viewpoint of cost, ecology and human health issues. The effect of MQL, dry cutting and flooded coolant were reviewed with respect to cutting forces, surface roughness of the machined work piece and tool wear. Results from literatures indicated that the MQL leads to lower cutting forces, reduced surface roughness and tool wear. Therefore, it appears that MQL, if properly employed not only provides environment friendliness but also improve the machinability characteristics.

Keywords: minimum quantity lubricant, cutting forces, surface roughness, tool wear

M.M.Noor