Optimization of EDM Process Parameters of Thixoformed A356-5TiB₂ In Situ Composites

Abstract:

The present work reports the influence of various Electric-Discharge Machining (EDM) process parameters on the surface morphology and EDM characteristics of thixoformed A356-5TiB₂ in-situ composites. The important EDM parameters such as pulse current, pulse-on time, Duty Cycle, etc. on Surface morphology and Material removal rate of the thixoformed A356-5TiB₂ in-situ composites have been investigated. Further, the machining parameters were optimized using Fuzzy-logic and grey relational analysis approach. The effect of EDM parameters and their interactions on the erosion behavior of A356-5TiB₂ in-situ composites on various aspects of surface integrity and Material Removal rate (MRR) is reported. The surface integrity during EDM was characterized by Scanning Electron Microscope and analyzed from the machinability point of view. Thus, this work is an attempt to study the machinability behavior of thixoformed A356-5TiB₂ in-situ composites.

• Periodical: Materials Science Forum (Volume 978)
• Pages: 271-276
• DOI: https://doi.org/10.4028/www.scientific.net/MSF.978.271
• Online since: February 2020
• Authors: Sahini Deepak Kumar*, Shailesh Dewangan, Joyjeet Ghose, S.K. Jha
• Keywords: A356-5TiB₂, Electrical Discharge Machining (EDM), Fuzzy-Logic, In Situ Composite, Material Removal Rate (MRR)

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