NSGA Optimization of Performance of Powder Mixed EDM

  Khalid Hussain Syed

Powder mixed electrical discharge machining is one of the techniques used in EDM to improve the machining performance. In this paper, an attempt has been made to study the effect of aluminium powder when mixed in kerosene dielectric fluid. The work and tool electrode materials used are W300 die-steel and electrolytic copper respectively. Pulse peak current, pulse on-time and concentration of aluminium powder are taken as the process parameters. The output responses considered are material removal rate (MRR) and surface roughness (Ra). The experiments are planned using face centered central composite design procedure. Empirical models are developed for MRR and Ra using response surface methodology (RSM) to study the effect of process parameters. The results show that Al powder mixed kerosene produces high MRR of 415 mg/min and low surface roughness value of 4.38 µm. Further, using nondominated sorting genetic algorithms (NSGA-II) the optimal process parameters for achieving maximum MRR and minimum Ra is obtained and presented here.

Keywords- PMEDM, Kerosene, MRR, Ra, CCD, RSM, NSGA-II

Unique Identification Number - IJEDR1704240
Page Number(s) - 1512-1516
Pubished in - Volume 5 | Issue 4 | December 2017
DOI (Digital Object Identifier) -   
Publisher - IJEDR (ISSN - 2321-9939)

  Khalid Hussain Syed,   "NSGA Optimization of Performance of Powder Mixed EDM", International Journal of Engineering Development and Research (IJEDR), ISSN:2321-9939, Volume.5, Issue 4, pp.1512-1516, December 2017, Available at :http://www.ijedr.org/papers/IJEDR1704240.pdf