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Accuracy improvement in nanographite powder-suspended dielectric fluid for micro-electrical discharge machining processes

The International Journal of Advanced Manufacturing Technology volume 56, pages 143–149 (2011)Cite this article

Abstract

Micro-electric discharge machining (μ-EDM) is an important manufacturing process that is able to produce components and tools with micro-features. Improvement to this process has resulted in the use of powder mixed dielectric (PMD), which results in better surface quality and faster machining time. However, the presence of conductive powder in the dielectric fluid negatively affects the accuracy of the machining depth. This paper presents a novel method of suspending nanographite powder in dielectric fluid, using ultrasonic vibration of dielectric fluid, and using the number of discharge pulses in order to improve the accuracy of the PMD-μ-EDM process. As a result, machining time has been significantly reduced up to 35%, accuracy increased, and the appearance of micro-cracks on the workpiece surface has been reduced.

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References

  1. 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 32:269–277

    Article  Google Scholar 

  2. Mahardika M, Tsujimoto T, Mitsui K (2008) A new approach on the determination of ease of machining process by EDM processes. Int J Mach Tools Manuf 48:746–760

    Article  Google Scholar 

  3. Yeo SH, Tan PC, Kurnia W (2007) Effect of powder additives suspended in dielectric on crater characteristic for micro electrical discharge machining. J Micromech Microeng 17:N91–N98

    Article  Google Scholar 

  4. Prihandana GS, Mahardika M, Hamdi M, Mitsui K (2009) The current methods for improving electrical discharge machining processes. Recent Pat Mech Eng 2:61–68

    Article  Google Scholar 

  5. Kansal HK, Singh S, Kumar K (2007) Effect of silicon powder mixed EDM on machining rate of AISI D2 die steel. J Manuf Process 9(1):13–22

    Article  Google Scholar 

  6. Tzeng YF, Chen F (2005) Investigation into some surface characteristics of electrical discharge machined SKD-11 using powder-suspension dielectric oil. J Mater Process Technol 170:385–391

    Article  Google Scholar 

  7. Tan PC, Yeo SH, Tan YV (2008) Effects of nanopowder additives in microelectrical discharge machining. Int J Precision Eng Manuf 9:22–26

    Google Scholar 

  8. Wong YS, Lim LC, Rahuman I, Tee WM (1995) Near-mirror-finish phenomenon in EDM using powder-mixed dielectric. J Mater Process Technol 79:30–40

    Article  Google Scholar 

  9. Huang H, Zhang H, Zhou L, Zheng HY (2003) Ultrasonic vibration assisted electro-discharge machining of microholes in nitinol. J Micromech Microeng 13:693

    Article  Google Scholar 

  10. Sommer C, Sommer S (2005) Complete EDM handbook. Reliable EDM, Houston

    Google Scholar 

  11. Lee HT, Tai TY (2003) Relationship between EDM parameters and surface crack formation. J Mater Process Technol 142:676–683

    Article  Google Scholar 

Download references

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Authors and Affiliations

  1. Department of Mechanical and Industrial Engineering, Faculty of Engineering, Gadjah Mada University, Jalan Grafika 2, Yogyakarta, 55281, Indonesia

    Gunawan Setia Prihandana & M. Hamdi

  2. Department of Mechanical and Industrial Engineering, Gadjah Mada University, Yogyakarta, 55281, Indonesia

    Muslim Mahardika

  3. Department of Mechanical Engineering, National University of Singapore, 10 Kent Ridge Crescent, Singapore, 119260, Singapore

    Y. S. Wong

  4. Department of Mechanical Engineering, Keio University, 3-14-1 Hiyoshi, Kohoku-ku, Yokohama, 223-8522, Japan

    Kimiyuki Mitsui

Authors
  1. Gunawan Setia Prihandana
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  2. Muslim Mahardika
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  3. M. Hamdi
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  4. Y. S. Wong
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  5. Kimiyuki Mitsui
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Corresponding author

Correspondence to Gunawan Setia Prihandana.

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Prihandana, G.S., Mahardika, M., Hamdi, M. et al. Accuracy improvement in nanographite powder-suspended dielectric fluid for micro-electrical discharge machining processes. Int J Adv Manuf Technol 56, 143–149 (2011). https://doi.org/10.1007/s00170-011-3152-6

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  • DOI: https://doi.org/10.1007/s00170-011-3152-6

Keyword

  • Micro-electric discharge machining
  • Nanopowder suspended in dielectric fluid
  • Machining accuracy
  • Micro-cracks
  • Ultrasonic vibration of dielectric fluid