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The present work emphasizes the fabrication of a series of V-groove channels utilizing electrical discharge machining using a pointed tungsten tool electrode. The prepared textured surface is tested for the shape of V-groove channel, wetting behavior, and tribological aspect. A decrease in shape error of V-groove channel is observed as the peak current increases from 4 A to 10 A due to an increase in discharge energy which functions as the melting or vaporizing of machined materials. The water contact angle decreases from 61.316 0  (untextured surface) to 49.567 0  (sample 4) showing an increase in hydrophilic behavior for the samples having nearly a V-groove-shaped channel. Further, there is a decrease in COF value from 0.48 (untextured surface) to 0.23 (sample 4). The decreased COF value attributes to the formation of metallic bridges in the V-groove channel. The prime wear mechanism for an untextured surface is found to be ploughing whereas adhesion with ploughing is dominant for textured surfaces.

Die-sink EDM texturing to fabricate hydrophilic and wear resistant surface