Author(s): Sanjeev Sharma, Rajdeep Singh, Sandeep Jindal
Published in: International Journal of Engineering Research & Technology
License: This work is licensed under a Creative Commons Attribution 4.0 International License.
Volume/Issue: Volume. 4 - Issue. 11 , November - 2015
Electric discharge machining (EDM) is a non-conventional machining process extensively used to manufacturer complex and intricate geometries of hard materials. This paper presents an experimental investigation of EN 31 die steel using the EDM process. The machining parameters such as peak current, pulse-on-time and pulse-off-time were chosen to study their effects on machining performance. The experiments were planned using L9 orthogonal array of Taguchi methodology. The output responses measured were material removal rate (MRR), tool wear rate (TWR) and surface roughness (SR). The observed results revealed EDM performance is greatly influenced by peak current followed by pulse-on-time.
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