Mirror Finishing Method of Electrochemical Polishing and Mechanical Grinding for Cold Rolling Rollers

Abstract:

Electrochemical polishing (ECP) is a promising approach to finishing surface to achieve high quality of surface. However, it cannot satisfy requirements of mirror finishing yet. In this paper, a mirror finishing method for cold rolling rollers is proposed. The whole process of the surface finishing can be divided into two phases: electrochemical polishing and mechanical grinding. An anodic film is formed exception for anodic dissolution during ECP. A small amount of the anodic film and metal material are removed by abrasive paper in mechanical grinding. Activated metal surface is exposed again and dissolved in electrochemical reaction after mechanical grinding. Residual of anodic film protects rollers. It is a cyclic process of mirror finishing. Experimental results showed that a mirror finishing surface of up to Ra0.02-0.05μm can be obtained by using this method and that it is effective and efficient.

• Periodical: Applied Mechanics and Materials (Volume 421)
• Pages: 222-228
• DOI: https://doi.org/10.4028/www.scientific.net/AMM.421.222
• Online since: September 2013
• Authors: Dong Gui Han, Yong Feng Li, Jun Fu, Hong Hai Liu, Shu Jian Chen
• Keywords: Cold Rolling Rollers, Electrochemical Polishing, Mechanical Grinding, Mirror Finishing

References

[1] J. F. Wilson: Practice and theory of electrochemical machining. New York, Wiley-Interscience (1971).

[2] J. A. McGEOUGH: Principles of electrochemical machining. Chapman and Hall (London and New York 1974).

[3] T. Gurumurthy, O. V. Krishnaiah Chetty, and Radhakrishnan: Smoothing of intial roughness in electrochemical machining. Int. J. Prod., Res., 16(6) (1978), 453-461.

DOI: 10.1080/00207547808930036

[4] S. C. Tam, N. H. Loh, and S. Miyazawa,: ECM-abrasive polishing of metals. Int. J. of Prod. Res. 27(10) (1989), 1757-1768.

DOI: 10.1080/00207548908942653

[5] S. J. Ebeid, and T.A. EI-Taweel: Surface improvement through hybridization of electrochemical turning and roller burnishing based on the Taguchi technique. Proc. IMechE Part B: J. of Eng. Manu. 219 (2005), 423-430.

DOI: 10.1243/095440505x32283

[6] J. J. Yi, C. M. Chen, X. Q. Tian, and B. Y. Ji: Basic experimental investigation of pulsed electrochemical mechanical polishing process. Surface Engineering. 25(7) (2009), 535-540.

DOI: 10.1179/174329409x397796

[7] J. Bannard: Electrochemical machining. J. of Appl. Electrochem. 7 (1977), 1-29.

[8] M. M. Loghrengel, I. Klüppel, C. Rosenkranz etc.: Microscopic investigations of electrochemical machining of Fe in NaNO3. Electrochimica Acta. 48(2003), 3203-3211.

DOI: 10.1016/s0013-4686(03)00372-4

[9] M. M. Loghrengel, C. Rosenkranz: Microelectrochemical surface and product investigations during electrochemical machining (ECM) in NaNO3. Corrosion Science, 47(2005), 785-794.

DOI: 10.1016/j.corsci.2004.07.023

[10] C. Rosenkranz, M. M. Lohrengel, J. W. Schultze: The surface structure during pulsed ECM of iron in NaNO3. Electrochimica Acta. 50(2005), 2009-(2016).

DOI: 10.1016/j.electacta.2004.09.010

[11] J. Hopenfeld, R. Cole: Electrochemical machining prediction and correlation of process variables, ASME Trans. of ASME J. Eng. Ind. B 8 (1969), 755–765.

DOI: 10.1115/1.3591685

[12] K. D. Vorlop, T. Tacke: Erste Schritte auf dem Weg zur edelmetallkatalysierten Nitrat‐und Nitrit‐Entfernung aus Trinkwasser. Chemie Ingenieur Technik. 61(10) (1989), 836-845.

DOI: 10.1002/cite.330611023

[13] U. Prusse, K. D. Vorlop: Supported bimetallic palladium catalysts for water-phase nitrate reduction. Journal of Molecular Catalysis A: Chemical. 173(1) (2001), 313-328.

DOI: 10.1016/s1381-1169(01)00156-x

[14] X. Hu, S. Ye, Y. He, and Y. Zhang: Harmless removal of nitrate-N in water by electrolysis catalytic reduction-chlorine oxidization. Research of Environmental Sciences. 24(5) (2011), 533-539.