J Mater Sci Technol ›› 2001, Vol. 17 ›› Issue (S1): 57-60.

• Research Articles • Previous Articles     Next Articles

Optimization of electrical discharge machining characteristics of SiCp/LM25 Al composites using goal programming

R.Karthikeyan, S.Raju, R.S.Naagarazan, B.C.Pai   

  1. Department of Producation Engineering, Annamalai University Annamalainagar-608 002, India...
  • Received:2001-02-16 Revised:2001-06-01 Online:2001-10-28 Published:2009-10-10
  • Contact: R.Karthikeyan

Abstract: In the present study an effort has been made to optimize the machining conditions for electric discharge machining of LM25 Al (7 Si, 0.33 Mg, 0.3 Mn, 0.5 Fe, 0.1 Cu, 0.1 Ni,.2 Ti) reinforced with green bonded SiC particles with approximate size of 25 mum. Polynomial models were developed for the various EDM characteristics such as metal removal rate, tool wear rate and surface roughness in terms of the process parameters such as volume fraction of SK, current and pulse time. The models were used to optimize the EDM characteristics using nonlinear goal programming.

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