Most of the researchers were studied dry and
wet machining and compared the dry and wet machining
process. MQL technique considerably enhances cutting
performance in terms of increasing tool life and
improving the quality of the machined parts. Vegetable
oils have been used in the food industry, but a recent
trend shows they could also use as industrial fluids.
Vegetable based lubricants are environmental friendly,
less toxicity and easily biodegradable innature. The aim
of the present work is to study the effect of minimum
quantity lubrication (MQL) in the turning operation.
Cotton seed oil were used in the present work and
optimize the process parameters based on the MRR
(material removal rate), tool wear and surface
roughness. The input parameters were selected as speed,
feed, and depth of cut at threedifferent levels for each
parameter, L9 orthogonal array were designed by
MINITAB software. It was found that the MQL provides
Turning, optimization, MQL, Vegetable oil and tool wear.