Electropolishing Research for Stainless Steel Surface Finishing under Vacuum Status

Abstract:

This research aims to study the electropolishing conducted under vacuum status. The electropolishing can be used to finishing high purity components of SUS 316L to make them shine and without leaving residual stress, micro-cracks, etc. In the research, the electropolishing process parameters are selected, such as current density, degree of vacuum and polishing time to conduct the electropolishing experiment. The experimental results show that the bubbles attached to the surface of the work-piece in the vacuum state are reduced, thereby improving the surface roughness and surface pitting. The vacuum status in the process can improve the electropolishing process.

• Periodical: Solid State Phenomena (Volume 354)
• Pages: 25-31
• DOI: https://doi.org/10.4028/p-YXa8Bg
• Online since: December 2023
• Authors: Hai Ping Tsui*, A Cheng Wang, Biing Hua Yan, Chun Hao Yang
• Keywords: Electropolishing, Stainless Steel, Vacuum Status

References

[1] Hai-Ping Tsui, Biing-Hwa Yan, Wei-Te Wu, Sheng-Tsai Hsua, (2007), "A study on stainless steel mirror surface polishing by using the electrophoretic deposition method," International Journal of Machine Tools & Manufacture, vol. 47, pp.1965-1970.

DOI: 10.1016/j.ijmachtools.2007.02.005

[2] Hai-Ping Tsui, Shih-Yu Hsu, (2022), "Study on Fe-based metallic glass micro hole machining by using micro-EDM combined with electrophoretic deposition polishing,"Processes,vol. 10(1), 96

DOI: 10.3390/pr10010096

[3] J. F. Aebersold, P. A. Stadelmann and M. Matlosz, (1996), "A rotating disc electropolishing technique for TEM sample preparation," Ultramicroscopy, pp.157-169.

DOI: 10.1016/0304-3991(95)00144-1

[4] Hryniewicz Tadeusz, (1994), "Concept of Microsmoothing in the Electropolishing Process", Surface & Coatings Tech., Vol. 64, No. 2, pp.75-80.

DOI: 10.1016/s0257-8972(09)90006-8

[5] J. E. Labarga, J. M. Bastidas and S. Feliu, (1991), "A Contribution to the Study on Electropolishing of Mild Steel and Aluminium Using Alternating Current," Electrochimica Acta, Vol. 36, No. 1, pp.93-95.

DOI: 10.1016/0013-4686(91)85184-9

[6] G. H. Sedahmed, M. S. Abdo and M. A. Kamal, (2001), "A Mass Transfer Study of the Electropolishing of Metals in Mechanically Agitated Vessels," Int. Comm. Heat Mass Transfer, Vol. 28, pp.257-265.

DOI: 10.1016/s0735-1933(01)00232-9

[7] Derek Pletcher and Frank C. Walsh, (1995), "Industrial Electrochemistry, " second edition, Blackie Acadmic & Professional. .

[8] S.J. Lee and et. al.,(2003), "The effects of electropolishing (EP) process parameters on corrosion resistance of 316L stainless steel," Journal of Materials Processing Technology, vol. 140, pp.206-210.

DOI: 10.1016/s0924-0136(03)00785-4

[9] Robert D.C,Ben S and Patrick A.O.,(1990), "electropolishing of stainless steel," PCMI Annual Meeting.

[10] P. Jemmely, and et. al.,(2000), "Electrochemical modeling of passivation phenomena in tribocorrosion," Wear, vol. 237, pp.63-76.

DOI: 10.1016/s0043-1648(99)00314-2

[11] C. H Wang, (2003), "The Effects of Convection on Electropolishing,"Yuan-Ze University in Partial Fulfillment of the Requirements for the Degree of Master of Science in Mechanical Engineering, Chungli, Taiwan.