Journal of Materials Science

, Volume 42, Issue 3, pp 872–877 | Cite as

Microanalysis of debris formed during electrical discharge machining (EDM)

  • Asit Kumar KhanraEmail author
  • L. C. Pathak
  • M. M. Godkhindi


The present investigation attempts to focus on the influence of EDM energy input on the structure and composition of the debris that forms during machining. An indigenously prepared ZrB2-Cu composite and mild steel plate were used as tool and workpiece (WP) material for the present study. The machining was carried out in a kerosene medium. The composition analysis of different debris particles was investigated by SEM/EDS. At low EDM energy input the SEM micrographs of WP debris showed formation of smaller size particles with few satellites. The SEM micrographs of high EDM energy input showed formation of hollow spheres, with dents, larger population of satellites, surface cracks and burnt core structures.


Kerosene Electrical Discharge Machine Tool Material Boron Carbide Dielectric Fluid 
These keywords were added by machine and not by the authors. This process is experimental and the keywords may be updated as the learning algorithm improves.



Authors are thankful to Mr. S. Sahana of IIT Kharagpur, India for help in carrying out SEM. Authors are also grateful to Prof. A. K. Chakraborty and Prof. A. B. Chattopadhyay of IIT Kharagpur, India for valuable discussion regarding debris analysis.


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Copyright information

© Springer Science+Business Media, Inc. 2007

Authors and Affiliations

  • Asit Kumar Khanra
    • 1
    Email author
  • L. C. Pathak
    • 2
  • M. M. Godkhindi
    • 1
  1. 1.Deptartment of Metallurgical and Materials EngineeringIITKharagpurIndia
  2. 2.MST DivisionNational Metallurgical LaboratoryJamshedpurIndia

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