Experimental Investigation on the Effects of Nano Fluid in ECM of High Carbon High Chromium Die Tool Steel Sathiyamoorthy V.*, Sekar T.**, Subramanian M.*** *Department of Mechanical Engineering, Veltech Hightech Dr Rangarajan Dr Sakunthala Engineering College, Avadi, Chennai-600062, Tamil Nadu, India **Department of Mechanical Engineering, Government College of Engineering, Dharmapuri, Tamil Nadu, India ***Department of Mechanical Engineering, SNS College of technology, Coimbatore, Tamil Nadu, India Online published on 2 August, 2016. Abstract The formation of spikes in Electrochemical Machining (ECM) of High carbon high chromium die steel prevent to achieve the better Material removal rate (MRR) and surface finish using NaCl aqua electrolyte. Hence, this research work attempts to investigate the effects of Nano fluid i.e., Copper nano particles suspended Sodium Chloride (NaCl) aqua electrolyte on the Electrochemical Machining (ECM) of High carbon high chromium (HCHCr) die steel. The electrochemically machined work piece is one of the tremendously utilized materials in most of automotive industries despite of its poor machinability. The objective of this research is to minimize the formation of spikes using nano particle suspended electrolyte results higher MRR and lower surface finish. The selected influencing parameters are applied voltage, electrolyte discharge rate and tool feed rate with different levels. Seventy two experiments are conducted on HCHCr die steel using nano fluid. The results reveal that nano fluid significantly improves the MRR and surface finish than that of plain NaCl aqua electrolyte by 15.44% higher MRR and 41.49% lower surface roughness. Top Keywords ECM, Cu-NaCl Nano fluid, NaCl aqua electrolyte, MRR, Surface roughness. Top |