Surface Roughness Analysis Of Sus 304 Stainless Steel Using Ethylene Glygol / Nanocellulose Based Nanofluid Coolant

Green cooling system in machining are gaining importance to minimize the environmental effect such as pollutions. Around 20 percent of the machining cost is about coolant usage. Even though coolant have a reasonably low cost, their handling and disposing cost are very high and, threatening toxic contents, disposal of used coolant is a big problem as it can lead to hazardous effect to the machining operates as well as to the environment. As an alternative, a cooling technique known as Minimum Quantity Lubrication (MQL) was introduced in the machining operation. For MQL technique, the coolant should exhibit superior properties which is effective in machining operation when compare with the conventional machining coolant which is metal working fluid (MWF). Owing to the technology advancement by nanotechnology in nanomaterial, the nanofluid is a promising coolant that can replace the conventional machining coolant. In the present work, ethylene glycol/nanocellulose based nanofluid is evaluated its effectiveness in machining performances which is surface roughness and compare its effectiveness with the conventional machining coolant. Its effectiveness is tested in turning machining operation of SUS304 stainless steel using cemented tungsten-cobalt (WC-Co) coated carbide grade with Ti (C,N) + Al2O3 cutting insert. The turning operation by using ethylene glycol/nanocellulose based nanofluid coolant produce fine surface finished when compare to conventional machining coolant