EXPERIMENTAL ANALYSIS AND OPTIMIZATION OF EDM ON AA6061 USING TAGUCHI TECHNIQUE

Electro Discharge Machining (EDM) is an extremely noticeable machining process among newly developed non - trad itional machining techniques are “difficult to machine” conducting materials such as heat treated tool steels, composites, super alloys, ceramics, carbides, heat defiant steels etc. In EDM, the material removal from the work piece is achieved through high frequency sparks generated between the tool and the work - piece material immersed into the dielectric. The Material Removal Rate (MRR), Tool Wear Rate (TWR) and surface integrity are some of the important performance attributes of E DM process. The objective of this study is to get high MRR along with achieving reasonably good surface quality of machined element. The machining parameters that achieve the highest MRR strongly depend on the size of the machining surface i.e. the occupi ed electrode and work - piece surface.The work has been carried out by conducting a set of experiments using aluminium alloy 6061 work - piece with copper electrode. Important machining parameters like duty cycle,pulse on time & current are considered for inve stigation. The effect of the machin ing parameters on the response MRR was investigated`