A Study on the Effect of Cutting Conditions on the Surface Roughness in MQL Turning

C.M. Lee and Y.K. Hwang (Korea)

Keywords

MQL machining, Turning process, Optimum cutting conditions, Split-plot design, Semi-dry cutting, Surface roughness

Abstract

At present, industry and researchers are looking for ways to reduce the use of lubricants because of ecological and economical reasons. Therefore, metal cutting is to move toward dry cutting or semi-dry cutting. This paper presents an investigation into MQL(Minimum Quantity Lubrication) machining with the objective of deriving the optimum cutting conditions for the turning process of SM45C. To reach these goals several finish turning experiments were carried out, varying cutting speed, feed rate and oil quantity, with MQL. The surface roughness results of tests were measured and the effects of cutting conditions were analyzed by the method of Analysis of Variance(ANOVA). From the experimental results and ANOVA, it is found that a better surface roughness can be obtained by decreasing oil quantity and feed rate.

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