Experimental investigation of the effect of control parameters of edm on surface roughness and tool wear rate using regression analysis

In this paper illustration of the influence of input machining parameters on the surface roughness and Tool wear rate are determined along with regression analysis. This experiment was conducted on High Carbon High Chromium Steel (HCHCR) with Copper as tool electrode. The data collected during experimentation has been used to yield responses in respect of surface roughness and tool wear rate (TWR). The objective of this paper is to study the influence of operating input parameters of copper electrode on surface roughness of HCHCR and tool wear rate of copper followed by optimization. The effectiveness of EDM process with copper electrode is evaluated in terms of surface roughness and tool wear rate. In this work the parameters such as current, spark gap, flushing rate pulse on time, pulse off time were selected. Analysis is carried using the Anova analysis.