STUDY OF DIFFERENT WORK MATERIALS EFFECT ON SURFACE ROUGHNESS IN ELECTROCHEMICAL MACHINING PROCESS

Ramandeep Singh, Nikhil Gandotra, Ayyappan Solaiyappan

Abstract: In today’s manufacturing era, Electrochemical machining process provides good surface finish due to its controlled atomic dissolution of work material, involving chemical reactions during machining. To enhance the machining performance, precise selection of machining parameters, is still a demanding job in ECM process as it is very complex process involving so many unpredictable chemical reactions while machining. Due to chemical and electrical characteristics; effect on surface roughness of process also depends upon the type of material. A very rare work has been done by taking work material as input parameter for experimental study of ECM. The reaction of work material is investigated as an input parameter along with voltage and interelectrode gap on improvement in surface roughness using orthogonal Array. Work-piece material is discovered as most significant factor influencing improvement in Surface Roughness followed by Inter-electrode gap and Voltage. Effect of ECM is found to be most prominent on Brass work-piece.

Keywords: Electro chemical machining (ECM); Surface roughness (SR); Orthogonal Array; Mild steel; Brass; Aluminium; Taguchi; ANOVA.

DOI: https://doi.org/10.15623/ijret.2015.0407081