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A Study on Modelling Surface Finish in Electrical Discharge Machining Tablet Shape Punches Using Response Surface Methodology

Le Xuan Hung, Tran Thanh Hoang, Vu Ngoc Pi
2017 Journal of Environmental Science and Engineering B  

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This paper introduces a study on modelling surface finish in EDM (Electrical Discharge Machining) of tablet shape punches when using copper as electrode material. In this study, 27 experiments were performed based on BBD (Box-Behnken Design) and the work-piece material was 9CrSi steel. The input process parameters were the current, the pulse on time, the pulse off time and the voltage. The effects of the input parameters on the surface finish were evaluated by analysing variance. Besides, from
more » ... he results of the experiments, a regression equation for determining the surface roughness is introduced. Also, the optimum input parameter values were found in order to get the minimum surface roughness.
doi:10.17265/2162-5263/2017.07.006 fatcat:jb5b63ntyvgddliupnz4jkfem4
Citation

Le Xuan Hung, Tran Thanh Hoang, Vu Ngoc Pi. "A Study on Modelling Surface Finish in Electrical Discharge Machining Tablet Shape Punches Using Response Surface Methodology." Journal of Environmental Science and Engineering B 6.7 (2017)