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Please use this identifier to cite or link to this item: http://repository.iitr.ac.in/handle/123456789/17864
Title: Experimental study on the electric discharge machining performance of powder metallurgy processed copper tungsten electrode using reverse polarity
Authors: Beri N.
Kumar D.
Haddad Y.M.
Published in: Proceedings of AES-ATEMA International Conference Series - Advances and Trends in Engineering Materials and their Applications
Abstract: Electric discharge machining has established itself as one of the most commonly used nontraditional machining techniques. The possibility of using powder metallurgy processed electrodes to improve the electric discharge machining performance has been explored in recent times. In the present experimental study an attempt has been made to compare the performance of powder metallurgy processed copper tungsten electrodes with the conventional copper electrode using reverse polarity during electrical discharge machining of Inconel 718 alloy steel. The response parameters selected for the study are material removal rate (MRR) surface roughness (SR) Ra value, tool wear rate (TWR) and change in surface roughness (SR) Ra value of electrode before and after machining. It is concluded that powder metallurgy processed copper tungsten electrode gives better machining performance in comparison with the conventional copper. Surface roughness obtained with powder metallurgy processed CuW electrode is less as compared with that obtained with conventional copper electrode. This is attributed to detachment of powder metallurgy electrode constituent which further get deposited on the work surface and thereby reduces the surface cracks. Same is confirmed through scanning electron microscopy (SEM) analysis. © 2014, Advanced Engineering Solutions (AES.COM) Ottawa, Canada. All rights are reserved.
Citation: Proceedings of AES-ATEMA International Conference Series - Advances and Trends in Engineering Materials and their Applications, (2014), 227- 234
URI: http://repository.iitr.ac.in/handle/123456789/17864
Issue Date: 2014
Publisher: Advanced Engineering Solutions
Keywords: Electrical discharge machining (EDM)
Material removal rate (MRR)
Powder metallurgy (PM)
Surface roughness and tool wear rate (TWR)
ISSN: 19243642
Author Scopus IDs: 36727118600
57202478211
Author Affiliations: Beri, N., Dept. of Mechanical Engineering, Beant College of Engineering and Technology, Gurdaspur, Punjab, 143521, India
Kumar, D., Dept. of Mechanical Engineering, Sri Sai College of Engineering and Technology, Badhani, Pathankot, Punjab, 145001, India
Corresponding Author: Beri, N.; Dept. of Mechanical Engineering, Beant College of Engineering and TechnologyIndia
Appears in Collections:Conference Publications [ME]

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