Effect of EDM Process Parameters for Nickel Chromium Alloy Steel-700
Author(s):
M.Ramakrishnan, M.Mohan, A.Balamurugan, M.Dhinesh, C.Ajith, S.Kaviarasan, S.Arivalagan
Keywords:
Optimization, EDM, Inconel-700.
Abstract
Metal removal mechanism in Electrical Discharge Machining (EDM) is mainly a thermal phenomenon where thermal energy is produced in plasma channel and dissipated though work piece, tool and dielectric. The process is mostly used in situations where machining of very hard materials, intricate parts, complex shapes. The aim of this work is to pursue the influence of three design factors current (I), pulse on Time (Ton) and pulse off Time (Toff) which are the most connected parameters to be controlled by the EDM process over machining specifications such as material removal rate (MRR) and characteristics of surface integrity such as average surface roughness (Ra) and the hardness (HR) and also to quantify them. The experiments were carried out as per L9 orthogonal array. Each experiment was performed under different conditions such as Ampere rating, pulse on time and pulse off time. The optimal factor for INCONEL 700 Surface Roughness were obtained when Pulse on time 5µs, Pulse Off time 8 µs and Amps-16, Machining time & MRR was Pulse on time 5µs, Pulse Off time 9 µs and Amps-14 . Particularly output response was mainly depending on the pulse on time for the output Response.
Article Details
Unique Paper ID: 145913

Publication Volume & Issue: Volume 4, Issue 11

Page(s): 647 - 650
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