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        Performance evaluation and optimization of nano boric acid powder weight percentage mixed with vegetable oil using the Taguchi approach

        P. N. L. Pavani,R. Pola Rao,S. Srikiran 대한기계학회 2015 JOURNAL OF MECHANICAL SCIENCE AND TECHNOLOGY Vol.29 No.11

        Turning, which is a widely employed method of metal removal process in manufacturing industries, generates many temperatures becauseof the increase in cutting forces. In view of the high temperatures developed in the process, tools deteriorate, and so good surfacequality is difficult to achieve. Lubrication becomes critical to minimize the forces and temperatures generated during the process. In thepresent work, boric acid powder is used as a solid lubricant, which is mixed with vegetable oils such as coconut oil and soybean oil inturning process. The results indicate that there is a considerable improvement in the machining performance with boric acid assistedMQL in machining compared with dry and wet machining. Taguchi method is a powerful problem solving technique for improving processperformance, yield, and productivity. Combining the speed, feed, and depth of cut is helpful. In the present study, the combinationusing Taguchi DOE was taken as factors, levels, and 32 experimental layouts are framed. The current study attempts to study the variationsin tool temperature; cutting forces and surface roughness of the machined component under various machining conditions to findthe optimum weight percentage of the solid lubricant used.

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