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The effects of magnetic field and ethanol addition on the electrochemical discharge machining

  • Ming-Yuan LinEmail author
  • Te-Hui Tsai
  • Lih-Wu Hourng
  • Wei-kai Wang
ORIGINAL ARTICLE
  • 15 Downloads

Abstract

This paper is about adding magnetic and ethanol to explore the accuracy of electrochemical discharge machining processing quartz glass. The tool electrode is tungsten carbide rod, the auxiliary electrode is platinum, the power source uses square wave pulse voltage, the KOH electrolyte is added with ethanol, and the tool is added with 3 T magnetic force. The experimental results show that ethanol can stabilize the square wave power supply wave shape, which can reduce the contact angle between the electrode and the bubble. The low contact angle electrolyte can increase the wettability of the tool electrode and improve the electrochemical processing stability. Therefore, under the action of ethanol and a magnetic field, the processing result can be improved, so that the generated bubbles are reduced and the film gets thinned. When the voltage frequency is higher, the film formation thickness will decrease, and the magnetic force and voltage will induce the magnetohydrodynamics of the electrolyte, which will make the electrolyte and bubble flow around the electrode relatively stable, the circumference around the aperture is flat, and the roundness is obviously improved. The overall improvement in the taper of the machined hole is increased by about 30%, and the amount of undercut of the hole is reduced.

Keywords

electrochemical discharge machining contact angle gas film Lorentz force 

Notes

References

  1. 1.
    Basak I, Ghosh A (1997) Mechanism of material removal in electrochemical discharge machining: a theoretical model and experimental verification. J Mater Process Technol 71:350–359CrossRefGoogle Scholar
  2. 2.
    Jain VK, Dixit PM, Pandey PM (1999) On the analysis of the electro-chemical spark machining process-test of machining on composite materials. Int J Mach Tools Manuf 39:165–186CrossRefGoogle Scholar
  3. 3.
    Kulkarni A, Sharan R, Lal GK (2002) An experimental study of discharge mechanism in electrochemical discharge machining. Int J Mach Tools Manuf 42:1121–1127CrossRefGoogle Scholar
  4. 4.
    Fascio V, Langen HH, Bieuler H, Comninellis C (2003) Investigations of the spark assisted chemical engraving. Electrochem Commun 5:203–207CrossRefGoogle Scholar
  5. 5.
    Wüthrich R, Comninellis C, Bleuler H (2005) Bubble evolution on vertical electrodes under extreme current densities. Electrochim Acta 50:5242–5246CrossRefGoogle Scholar
  6. 6.
    Wüthrich R, Hof LA (2006) The gas film in spark assisted chemical engraving (SACE) - a key element for micro-machining applications. Int J Mach Tools Manuf 46:828–835CrossRefGoogle Scholar
  7. 7.
    Maillard P, Despont B, Bleuler H, Wüthrich R (2007) Geometrical characterization of micro-holes drilled in glass by gravity-feed with spark assisted chemical engraving (SACE). J Micromech Microeng 17:1343–1349CrossRefGoogle Scholar
  8. 8.
    Yang CK, Cheng CP, Mai CC, Wang AC, Hung JC, Yan BH (2010) Effect of surface roughness of tool electrode materials in ECDM performance. Int J Mach Tools Manuf 50:1088–1096CrossRefGoogle Scholar
  9. 9.
    Jain VK, Singh YP, Kumar P, Agrawal DC (1996) Machining piezoelectric (PZT) ceramics using an electrochemical spark machining (ECSM) process. J Mater Process Technol 58:24–31CrossRefGoogle Scholar
  10. 10.
    Zheng ZP, Cheng WH, Huang FY, Yan BH (2007) 3D microstructuring of Pyrex glass using the electrochemical discharge machining process. J Micromech Microeng 17:960–966CrossRefGoogle Scholar
  11. 11.
    Yang CT, Ho SS, Yan BH (2001) Micro hole machining of borosilicate glass through electrochemical discharge machining (ECDM). Key Eng Mater 196:149–166CrossRefGoogle Scholar
  12. 12.
    Yang CK, Wu KL, Hung JC, Lee SM, Lin JC, Yan BH (2011) Enhancement of ECDM efficiency and accuracy by spherical tool electrode. Int J Mach Tools Manuf 51:528–535CrossRefGoogle Scholar
  13. 13.
    Cheng CP, Wu L, Mai CC, Hsu YS, Yan BH (2010) Magnetic field-assisted electrochemical discharge machining. J Micromech Microeng 20:075019CrossRefGoogle Scholar
  14. 14.
    Sabahi N, Hajian M, Razfar MR (2018) Experimental study on the heat-affected zone of glass substrate machined by electrochemical discharge machining (ECDM) process. Int J Adv Manuf 97:1557–1564CrossRefGoogle Scholar
  15. 15.
    Hourng LW, Lin CI, Lee BG (2014) The improvement of machining accuracy on quartz and glasses by electrochemical discharge machining. Appl Mech Mater 472:682–687CrossRefGoogle Scholar

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© Springer-Verlag London Ltd., part of Springer Nature 2019

Authors and Affiliations

  1. 1.Department of Mechanical EngineeringArmy AcademyChung-LiTaiwan
  2. 2.Department of Mechanical EngineeringNational Central UniversityChung-LiTaiwan

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