An Experimental Investigation during Micro Machining of E-Glass-Fibre-Epoxy Composite on Developed Electrochemical Spark Machining Setup

Alakesh Manna and Vivek Narang
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Alakesh Manna: PEC University of Technology, India
Vivek Narang: PEC University of Technology, India

International Journal of Manufacturing, Materials, and Mechanical Engineering (IJMMME), 2012, vol. 2, issue 2, 46-60

Abstract: In the present research, specially designed square cross-section with centrally micro hole brass tool and different diameter round shape micro tools made of IS-3748 steel were used for micro electrochemical spark machining (ECSM) of electrically non conductive e-glass-fibre-epoxy composite. To analyze the influences of the various process parameters of ECSM setup, the specific numbers of experiments have been carried out on developed ECSM setup. The ECSM performance characteristics such as material removal rate, hole depth, and over-cut on hole radius during machining of e-glass-fibre-epoxy composite under varying process parametric conditions are reported in this paper. From the test results, it is found that at higher setting value of D.C. supply voltage, moderate setting value of electrolytic concentration and 180 mm gap between tool (cathode) and auxiliary electrode (anode) the material removal rate is higher. Utilizing the test results mathematical models for MRR and over-cut on hole radius have been developed to express the effect of ECSM process parameters. Different SEM photographs of the micro holes show the surface texture of the machined holes and shape of the generated special shape contour.

Date: 2012
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