Skip to main content
SpringerLink
Log in

Study on machining characteristics of micro EDM with high spindle speed using non-contact electric feeding method

  • ORIGINAL ARTICLE
  • Published:
The International Journal of Advanced Manufacturing Technology Aims and scope Submit manuscript

Abstract

In order to improve the efficiency of micro electrical discharge machining (micro EDM), the rotational spindle is widely used at present. Since the EDM technology is invented, the relaxation-type pulse generator, transistor-type pulse generator, or their combinations have been generally used. However, with these pulse generators, it is difficult to supply electrical power to the tool electrode rotating at extremely high speed without causing the vibration and spindle wear due to the contact electric feeding using a brush. So the tool electrode rotating speed is less than thousands of revolutions per minute (rpm) usually. Based on the principle of electrostatic induction, the non-contact electric feeding can be realized in micro EDM. So the rotating speed of the tool electrode can reach high rotating speed. This paper studied the machining characteristics of micro EDM under the high spindle speed up to 60,000 rpm by the machining of micro rods and the micro holes. As a result, the minimum electrode of Φ 2 μm in diameter and 10 μm in length, and the micro rod of Φ 5 μm in diameter and 80 μm in length with a high aspect ratio of 16 were obtained by block electrical discharge grinding (BEDG) method. From the micro hole machining results, it was found that with the increase of the spindle speed, the material removal rate increases, while the electrode wear ratio decreases. Meanwhile, the higher aspect ratio and machining accuracy were realized and the surface roughness was also improved significantly.

This is a preview of subscription content, log in via an institution to check access.

Access this article

Log in via an institution

Price excludes VAT (USA)
Tax calculation will be finalised during checkout.

Instant access to the full article PDF.

Institutional subscriptions

Similar content being viewed by others

References

  1. Masuzawa T (2000) State of the art of micromachining. Annals of the CIRP 49(2):473–488

    Article  Google Scholar 

  2. Masuzawa T (2001) Micro-EDM. Proceedings of the 13th International Symposium of Electromachining-ISEM XIII, Bilbao, Spain 3–19

  3. Kunieda M, Yanatori K (1997) Study on debris movement in EDM gap. International Journal of Electrical Machining 2:43–49

    Google Scholar 

  4. Masuzawa T (2007) Application of EDM for micromachining. Journal of the Japan Society of Electrical Machining Engineers 41:148–151

    Google Scholar 

  5. Ozgedik A, Cogun C (2006) An experimental investigation of tool wear in electric discharge machining. Int J Adv Manuf Technol 27(5–6):488–500

    Article  Google Scholar 

  6. Koenig W, Weill R, Wertheim R, Jutzler WI (1977) The flow fields in the working gap with electro-discharge-machining. Annals of the CIRP 25(1):71–76

    Google Scholar 

  7. Masuzawa T, Heuvelman CJ (1983) A self-flushing method with spark-erosion machining. Annals of the CIRP 32(1):109–111

    Article  Google Scholar 

  8. Wang J, Han F (2014) Simulation model of debris and bubble movement in electrode jump of electrical discharge machining. Int J Adv Manuf Technol 74(5–8):591–598

    Article  Google Scholar 

  9. Huang H, Zhang H, Zhou L, Zheng HY (2003) Ultrasonic vibration assisted electro-discharge machining of micro holes in Nitinol. Journal of Micromechanics & Microengineering 13(5):693–700

    Article  Google Scholar 

  10. Tong H, Li Y, Wang Y (2008) Experimental research on vibration assisted EDM of micro-structures with non-circular cross-section. J Mater Process Technol 208(1–3):289–298

    Article  Google Scholar 

  11. Kunieda M, Hayasaka A, Yang XD, Sano S, Araie I (2007) Study on Nano EDM using capacity coupled pulse generator. Annals of the CIRP 56(1):213–216

    Article  Google Scholar 

  12. Yang XD, Kimori M., Kunieda M, Araie I, Sano S (2007) Machining properties of micro EDM using electrostatic induction feeding. Proceedings of the 15th International Symposium of Electromashining-ISEM XV, Pittsburgh, USA 231–234

  13. Yang XD, Kunieda M, Sano S (2008) Study on the influence of stray capacitance in micro EDM using electrostatic induction feeding. International Journal of Electrical Machining 13:35–40

    Google Scholar 

  14. Koyano T, Yahagi Y, Kunieda M, and Yang XD (2010) High spindle speed micro EDM using electrostatic induction feeding method. Proceedings of the 16th International Symposium of Electromashining-ISEM XVI, Shanghai, China 699–702

Download references

Author information

Authors and Affiliations

  1. School of Mechatronics Engineering, Harbin Institute of Technology, Harbin, China

    G. L. Feng, X. D. Yang & G. X. Chi

Authors
  1. G. L. Feng
    View author publications

    You can also search for this author in PubMed Google Scholar

  2. X. D. Yang
    View author publications

    You can also search for this author in PubMed Google Scholar

  3. G. X. Chi
    View author publications

    You can also search for this author in PubMed Google Scholar

Corresponding author

Correspondence to X. D. Yang.

Rights and permissions

Reprints and permissions

About this article

Check for updates. Verify currency and authenticity via CrossMark

Cite this article

Feng, G.L., Yang, X.D. & Chi, G.X. Study on machining characteristics of micro EDM with high spindle speed using non-contact electric feeding method. Int J Adv Manuf Technol 92, 1979–1989 (2017). https://doi.org/10.1007/s00170-017-0290-5

Download citation

  • Received:

  • Accepted:

  • Published:

  • Issue Date:

  • DOI: https://doi.org/10.1007/s00170-017-0290-5

Keywords

Search

Navigation