MRR and TWR study of powder mix EDM and pure EDM based on response surface methodology

Mohd Zain, Zakaria and Rashid, Mir Akmam Noor and Khan, Sher Afghan and Khan, Ahsan Ali (2023) MRR and TWR study of powder mix EDM and pure EDM based on response surface methodology. Journal of Advanced Research in Applied Mechanics, 103 (1). pp. 13-26. ISSN 2289-7895

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Abstract

Powder-mixed electrical discharge machining (PMEDM) enhances the machined surface's output by combining dielectric fluid with various types of powders. This process is quickly gaining acceptance in the electrical discharge machining (EDM) sector. The purpose of this study is to determine whether a dielectric fluid containing tantalum carbide (TaC) powder can improve the material removal rate (MRR) also, lessen tool wear rate (TWR) during the subsequent EDM machining of stainless steel material. The material removal rates, tool wear rate, and mathematical models of two different EDM mediums were examined during the machining. For the machining procedure, kerosene dielectric fluid containing TaC powder at a concentration of 25.0 g/L was used. The machining input variables were used peak current, pulse on time, and pulse off time. We determined how these variables affected the MRR and TWR of the copper-based EDMed electrode tools. During electrical discharge machining, the MRR for stainless steel (SUS 304) was increased by MRRPMEDM by 4.3 to 5.3% and TWRpEDM was reduced by 37.9% when TaC powder additive was used. Optimized results also show that TWR and maximum MRR can be achieved at 81.98% and 13.779mm3/min respectively with 83.50% desirability whenever the pulse on-time and pulse off-time are 6.20 µs and 6.50 µs respectively. The models are reliable and can be used to forecast the machining responses within the experimental region, it can be said. The MRR and TWR model for EDM with TaC powder additive (MRRPMEDM) identifies current as the most significant factor, followed by pulse on time and off-time.

Item Type:	Article (Journal)
Subjects:	T Technology > TJ Mechanical engineering and machinery
Kulliyyahs/Centres/Divisions/Institutes (Can select more than one option. Press CONTROL button):	Kulliyyah of Engineering > Department of Mechanical Engineering
Depositing User:	Prof. Dr. Sher Afghan Khan
Date Deposited:	18 Apr 2023 11:09
Last Modified:	27 Dec 2023 11:14
URI:	http://irep.iium.edu.my/id/eprint/104450

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