Abstract
In modern-day manufacturing Electric Discharge Machining (EDM) process has successfully placed itself in the domain of precision machining and generating complex geometries where secondary machining processes are eliminated. In this research paper, a die sinking EDM is applied to machine mild steel in order to measure the different multi-objective results like Material Removal Rate (MRR) and Over Cut (OC). This contradictory objective is accomplished by using the control parameters like a pulse on time, duty factor, gap current and spark gap employing copper tool with lateral flushing. Here the individual objective function of the responses is created through regression analysis. Primarily the contradictory objectives are optimized by employing Taguchi Methodology, then Regression analysis is done on the test results. Additionally, the experimental results are optimized using Response Surface Methodology (RSM). It is followed by a multi-objective optimization through Overlaid contour plots and Desirability functions to ascertain the best parametric combination amongst the set of feasible alternatives.
Highlights
As the modern day looks for advance and superior material to survive in the adverse working environment, they call for hard and high-temperature resistive material; which are very difficult to machine by the traditional machining process
The cathode tool and the anode work piece are separated by a small spark gap and both the tool and the work piece are submerged in the dielectric fluid
It is found that the Material Removal Rate (MRR) is mostly influenced by Pulse On Time (POT) whereas Over Cut (OC) is affected by I
Summary
As the modern day looks for advance and superior material to survive in the adverse working environment, they call for hard and high-temperature resistive material; which are very difficult to machine by the traditional machining process. To sustain this challenging situation non-traditional machining is essential. Electrical Discharge Machining (EDM) is a non-conventional machining process that can remove the conductive material by control erosion. In this process, the cathode tool and the anode work piece are separated by a small spark gap and both the tool and the work piece are submerged in the dielectric fluid.
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