Abstract
Turning is a mostly used metal removal process in the engineering industry that involves generation of high temperature and cutting forces. Lubrication becomes critical to minimize the effects of this temperature and forces on cutting tool and workpiece. Development of lubricants that are environmental is acquiring importance. For this, a specific study on the application of Minimum Quantity Lubricants as lubricating oil in turning operation is working on. In the present work a specific study on the application of nanosolid boric acid with titanium dioxide (μm) suspended in lubricating oil in turning of EN24steel with carbide tool. SAE-40 is taken as base lubricants and boric acid solid lubricant of (50, 60 80, 538nm) particles size and titanium dioxide (100μm) with different weight percentages taken as suspensions. Variations in cutting forces, tool temperatures, and surface roughness are studied. For this Boric acid nanoparticle were prepared by using High Energy Ball Milling. Ball milling which was carried out for the total duration of 15 hours. The sample was taken out after every 5 hours of milling for characterizing. The nanostructured boric acid particle size measurement was done by X-Ray Diffractometer which was supported by the XRD Scherer’s formula. It was found that the particle size got reduced from 538nm to 63nm for the period of 15 hrs. In present work, the obtained results were predicted by using Regression analysis method for the prediction of output parameters of the lathe machining process is modelled using two input variable parameters such as particle size of boric acid (nm) and the weight percentage of titanium dioxide (μm). Then the model predictions are compared with a set of reliable experimental data available, and it is found So that proposed Regulation analysis gives the results which are well in agreement with experimental results. Keywords: Turn machining, SAE-40 oil, Boric acid, Titanium dioxide, Minimum Quantity Lubrication (MQL), Regression analysis
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