IJERT-An Experimental Investigation on Machining Parameters of Electrical Discharge Machining of OHNS Steel (original) (raw)

2013, International Journal of Engineering Research and Technology (IJERT)

https://www.ijert.org/an-experimental-investigation-on-machining-parameters-of-electrical-discharge-machining-of-ohns-steel https://www.ijert.org/research/an-experimental-investigation-on-machining-parameters-of-electrical-discharge-machining-of-ohns-steel-IJERTV2IS121070.pdf Presently manufacturing industries are facing various challenges from these advanced materials viz. super alloys, ceramics, and composites, whose mechanical properties are hard and difficult to machine. It requires high precision, surface quality which increases machining cost. To meet these technological challenges, non-conventional machining processes are being employed to achieve higher metal removal rate, better surface finish and greater dimensional accuracy, with less tool wear. Electric Discharge Machining (EDM) is a non-conventional process and has a wide applications in automotive, defense, aerospace and micro systems industries plays an excellent role in the development of cost effective products with more reliable quality assurance. Here we report and analyse the various parameters in Electrical Discharge Machining. Experimental results are discussed on electric discharge machining of OHNS (Oil Hardening non Shrinking Tool Steel) Die material in Copper and Aluminium electrode. Statistical analysis is presented to identify the effect of process input factors (viz. current, voltage) on the output factors viz. Material Removal Rate (MRR), Electrode Wear Rate (EWR). Keyword-Electrical discharge machining (EDM), Material removal rate (MRR), Tool wear rate (TWR), Oil Hardening non Shrinking Tool Steel (OHNS),

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