N.Ethiraj, Professor
Department of Mechanical Engineering, Dr.M.G.R Educational and Research Institute, Chennai-600 095, India.
T.Sivabalan, Assistant Professor
Department of Mechanical Engineering, Dr.M.G.R Educational and Research Institute, Chennai-600 095, India.
Saibal Chatterjee, Seeramsetti Mahesh, Mrityunjay Kumar Chandravanshi, Undergraduate Student
Department of Mechanical Engineering, Dr.M.G.R Educational and Research Institute, Chennai-600 095, India.
Investigation on Material Removal Rate and Surface Finish in Electrical Discharge Machining of AA 6061-B4C Composite Material
Authors
Abstract
One of the non-conventional techniques of metal removal manufacturing processes is electrical discharge machining (EDM). The objective of this paper is to prepare a composite material consisting of a matrix of Aluminium AA 6061 alloy and Boron carbide (B4C) as reinforcement and investigate the output responses, the material removal rate, the quality of the surface formed and overcut during EDM process. The process parameters discharge current, Pulse on time and Duty cycle along with the weight % of B4C are considered for investigation to investigate the output responses such as material removal rate, surface roughness and overcut. From the experimental results, it is observed that the weight % of reinforcement has more influence on the material removal rate. The parameters discharge current and pulse-on-time plays an important role in reducing the surface roughness and overcut. Microstructural study helps in understanding the effect of process parameters on the output responses.