Machining of Micro Holes on Stainless Steel 316 by Die Sinking Electrical Discharge Machine

Abstract

The present work is focus on machining of micro holes on stainless steel (SS-316) work piece
with cylindrical copper electrode of diameter (0.3mm) 300?m using Die sinker Electrical discharge
machining. The experimental work was conducted by changing the machining input parameters i.e. current
(Amps.), pulse-ON (µs.) and pulse-OFF (µs.). Taguchi L9 Orthogonal array experimental design were used
and outcomes response are Material removal rate-(MRR), tool wear rate-(TWR), Overcut-(OC), Taper
angle-(TA) and Circularity-(C). Microstructures of Micro holes were examined on scanning electronic
microscope for the recast layer and debris. The main purpose of this research work is to develop micro-hole
machining using Die-sink Electrical discharge machining through qualitative and quantitative process for
industry in economical and energy efficient