EFFECT OF VEGETABLE OIL BASED COOLANTS ON SURFACE ROUGHNESS IN TURNING FERROUS AND NON-FERROUS MATERIALS

摘要

Results are presented from extensive cutting fluid performance testing based on turning. Surface roughness produced is used as performance criteria for comparison between conventional and proposed vegetable oil based coolants. Different work materials, two ferrous (IS2062 steel and EN8 alloy steel), and to non ferrous materials aluminium alloy (IS6351) and brass (IS319), are turned using HSS and WC Tools by flooding conventional and vegetable base coolants. Two groups of cutting fluids were tested that is, four bio based coolants and four conventional coolants. The bio based coolants included Mahua oil (Hippe oil, Madhuca longifolia), Honge oil (Pongamia Pinnata), gingelly oil(Sesame Oil) and cotton seed oil. The conventional coolants included mineral oil, conventional vegetable oil, synthetic fluid and distilled water. The conventional fluids are used as reference cutting fluids for comparison with proposed vegetable oil based coolants. Distilled water, though not a conventional coolant is used here for comparison purpose. Initial results indicate that the performance of proposed vegetable oil based coolants is equal to or better than that of conventional coolants.