Machining plays a crucial role in process of economy through the way it contributes around 5% of the country’s total economy. The method of machining has been changed through the last periods due to the competition within the market to urge more profit and High Speed Machining (HSM) plays the vital role to realize the equivalent. Hence, many researchers are working on reduction of the machining cost and consumption of energy. Hard to cut materials have long list of practical applications, which is the main reason to consider their research and development aspects. Thus, it’s important to review the consequences of process parameters mainly like cutting speed, feed rate and depth of cut so as to determine the correlation with reference to key measuring parameters like tool life, surface roughness and tool wear. The authentication of this approach must be proved in future, using different experimental data as high speed machining leads to extreme machining temperature, sudden tool failure and subsequent adverse effects on overall machining performance in all the aspects. Sustainable machining techniques have the effective answer to avoid the adverse consequences of HSM. This paper emphasizes upon the review of application of various sustainable machining techniques like Minimum Quantity Lubrication (MQL), Cryogenic Technique, and Compressed Gas into the high-speed machining of hard to cut materials. Further, the appliance of vegetable based lubricants is highlighted for better comparison.
On Machinability of Titanium Grade 4 under Minimum Quantity Lubrication Assisted High Speed Machining
