An investigation on performance of castor oil and Pongamia oil based cutting fluid in MQL milling of aluminium alloy 6061

Abstract

The expense of coolant in milling processes accounts for such a significant portion of overall production costs, research efforts are presently concentrated on finding ways to reduce or do away with the need for lubrication. The environment, the performance of the machining, and the prices of the machining can all benefit from the decrease or elimination of traditional fluid. By employing the Minimum Quantity Lubrication Method, one is able to cut down on lubrication costs while also lowering the potential danger to the health of workers. While end milling aluminium 6061 with a SINOMILL VMC300 and an HSS end mill tool at three distinct spindle speeds (1000, 1500, and 2000 rpm), three distinct doc(0.25, 0.5, and 0.75 mm), and three distinct feed(100,150,200 mm/min), surface roughness (Ra) was measured in dry milling, MQL with base fluid (Pongamia oil, castor oil), conditions. The reduction in Ra is reported as a 12.89% with base fluid (Pongamia oil), in comparison to dry milling. When compared to dry milling, the reduction in Ra that was recorded when using base fluid (castor oil) was 33.72%. In this experiment it was carried out by the Drop shape analyzer (which was manufactured by Kruss), it was found that the contact angle in castor oil is superior to the contact angle in pongamia oil, and the values of contact angle are 43.4 and 47.8 respectively.