AN EXPERIMENTAL STUDY ON GREEN MACHINING

The growing demand for energy in the last two decades involving all spheres of human civilization is an important issue in need of immediate attention. The need arises to explore means of reducing energy consumption during machining. Green machining has become an essential and fast developing research area in manufacturing. In this work, an experimental study is conducted to find the effect of material removal rate (MRR) on specific energy consumption in milling operation. MRR is varied by varying feed rate and depth of cut. Variations in specific energy and cutting power requirement with the change in feed rate and depth of cut (thereby change in MRR) are observed. It is found that with increase in feed rate/depth of cut, MRR is increased and specific energy is decreased. Although cutting power requirement increases with MRR, decrease in specific energy due to increasing MRR dominates the increase in cutting power requirement. Use of optimal feed rate/depth of cut and thus optimal MRR can ensure lower specific energy consumption leading to green machining.