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Effects of Micro-EDM Parameters on the Surface Integrity of the Micro-Holes Fabricated on Nickel Sheet

  • Pankaj Kumar
  • Manowar HussainEmail author
Conference paper
Part of the Lecture Notes in Mechanical Engineering book series (LNME)

Abstract

This paper presents the machining of the nickel sheet using The micro-EDM process. The effect of machining parameters such as pulse on time and gap voltage on the surface integrity parameters such as recast layer thickness, heat affected zone, change in micro-hardness of the workpiece surface and metallurgical transformation in the machined samples has been reported. It is found that ultrasonic vibration given to the workpiece, results in a reduction in the thickness of the recast layer and varies from 7 to 22 µm. The hardness of the fabricated micro-holes improves significantly on the introduction of ultrasonic vibration to the workpiece and was in the range of 116–141HV. In this study, heat-affected zone was not observed in optical as well as in SEM images. The result of the EDS analysis shows that less amount of the residuals of the carbon and oxygen were present over the fabricated holes.

Keywords

Micro-hole Micro-EDM Nickel sheet Ultrasonic vibration Surface topography Micro-hardness 

References

  1. 1.
    Diver C, Atkinson J, Helml HJ, Li L (2004) Micro-EDM drilling of tapered holes for industrial applications. J Mater Process Technol 149(1–3):296–303CrossRefGoogle Scholar
  2. 2.
    Yan BH, Huang FY, Chow HM, Tsai JY (1999) Micro-hole machining of carbide by electric discharge machining. J Mater Process Technol 87(1–3):139–145CrossRefGoogle Scholar
  3. 3.
    Das AK, Kumar P, Sethi A, Singh PK, Hussain M (2016) Influence of process parameters on the surface integrity of micro-holes of SS304 obtained by micro-EDM. J Braz Soc Mech Sci Eng 38(7):2029–2037CrossRefGoogle Scholar
  4. 4.
    Zheng HY, Huang H (2007) Ultrasonic vibration-assisted femtosecond laser machining of microholes. J Micromech Microeng 17(8):N58CrossRefGoogle Scholar
  5. 5.
    Bhattacharyya B, Munda J, Malapati M (2004) Advancement in electrochemical micro-machining. Int J Mach Tools Manuf 44(15):1577–1589CrossRefGoogle Scholar
  6. 6.
    Fleischer J, Schmidt J, Haupt S (2006) Combination of electric discharge machining and laser ablation in microstructuring of hardened steels. Microsyst Technol 12(7):697–701CrossRefGoogle Scholar
  7. 7.
    Garn R, Schubert A, Zeidler H (2011) Analysis of the effect of vibrations on the micro-EDM process at the workpiece surface. Precis Eng 35(2):364–368CrossRefGoogle Scholar
  8. 8.
    Prakash V, Shubham, Kumar P, Singh PK, Das AK, Chattopadhyaya S, Dixit AR (2018) Surface alloying of miniature components by micro-electrical discharge process. Mater Manuf Process 33(10):1051–1061CrossRefGoogle Scholar
  9. 9.
    Huang H, Zhang H, Zhou L, Zheng HY (2003) Ultrasonic vibration assisted electro-discharge machining of microholes in Nitinol. J Micromech Microeng 13(5):693CrossRefGoogle Scholar
  10. 10.
    Endo T, Tsujimoto T, Mitsui K (2008) Study of vibration-assisted micro-EDM—the effect of vibration on machining time and stability of discharge. Precis Eng 32(4):269–277CrossRefGoogle Scholar
  11. 11.
    Kibria G, Sarkar BR, Pradhan BB, Bhattacharyya B (2010) Comparative study of different dielectrics for micro-EDM performance during microhole machining of Ti-6Al-4 V alloy. Int J Adv Manuf Technol 48(5–8):557–570CrossRefGoogle Scholar
  12. 12.
    Kansal HK, Singh S, Kumar P (2007) Technology and research developments in powder mixed electric discharge machining (PMEDM). J Mater Process Technol 184(1–3):32–41CrossRefGoogle Scholar
  13. 13.
    Masaki T, Kawata K, Masuzawa T (1990) Micro electro-discharge machining and its applications. In: Micro Electro Mechanical Systems, 1990. Proceedings, An Investigation of Micro Structures, Sensors, Actuators, Machines and Robots. IEEE, pp 21–26Google Scholar
  14. 14.
    Her MG, Weng FT (2001) Micro-hole maching of copper using the electro-discharge machining process with a tungsten carbide electrode compared with a copper electrode. Int J Adv Manuf Technol 17(10):715–719CrossRefGoogle Scholar
  15. 15.
    Lim HS, Wong YS, Rahman M, Lee ME (2003) A study on the machining of high-aspect ratio micro-structures using micro-EDM. J Mater Process Technol 140(1–3):318–325CrossRefGoogle Scholar
  16. 16.
    Prakash V, Kumar P, Singh PK, Hussain M, Das AK and Chattopadhyaya S (2019) Micro-electrical discharge machining of difficult-to-machine materials: a review. Proceedings of the Institution of Mechanical Engineers, Part B: J of Eng Manuf 233(2) 339-370CrossRefGoogle Scholar
  17. 17.
    Jabbaripour B, Sadeghi MH, Faridvand S, Shabgard MR (2012) Investigating the effects of EDM parameters on surface integrity, MRR and TWR in machining of Ti–6Al–4V. Mach Sci Technol 16(3):419–444CrossRefGoogle Scholar
  18. 18.
    Ekmekci B (2009) White layer composition, heat treatment, and crack formation in electric discharge machining process. Metall Mater Trans B 40(1):70–81MathSciNetCrossRefGoogle Scholar
  19. 19.
    Imran M, Mativenga PT, Gholinia A, Withers PJ (2015) Assessment of surface integrity of Ni superalloy after electrical-discharge, laser and mechanical micro-drilling processes. Int J Adv Manuf Technol 79(5–8):1303–1311CrossRefGoogle Scholar
  20. 20.
    Shabgard M, Oliaei SNB, Seyedzavvar M, Najadebrahimi A (2011) Experimental investigation and 3D finite element prediction of the white layer thickness, heat affected zone, and surface roughness in EDM process. J Mech Sci Technol 25(12):3173–3183CrossRefGoogle Scholar
  21. 21.
    Kumar P, Hussain M, Das AK. Effect of process parameters on the surface integrity of micro-holes of Ti6Al4V obtained by micro-edmGoogle Scholar
  22. 22.
    Kumar P, Hussain M, Singh PK, Das AK (2015) A new method for modeling of cathode and anode erosion in micro-EDM Process. Int J Appl Eng Res 10(24)Google Scholar

Copyright information

© Springer Nature Singapore Pte Ltd. 2020

Authors and Affiliations

  1. 1.Department of Mechanical EngineeringS R Engineering CollegeWarangalIndia
  2. 2.Department of Mechanical EngineeringChaitanya Bharathi Institute of TechnologyHyderabadIndia

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