Research Papers

Analysis of Electrolytic Flow Effects in Micro-Electrochemical Grinding

[+] Author and Article Information
Suhas S. Joshi

e-mail: ssjoshi@iitb.ac.in
Department of Mechanical Engineering,
Indian Institute of Technology Bombay,
Mumbai 400 076, India

1Corresponding author.

Contributed by the Manufacturing Engineering Division of ASME for publication in the JOURNAL OF MANUFACTURING SCIENCE AND ENGINEERING. Manuscript received May 17, 2010; final manuscript received December 8, 2012; published online January 24, 2013. Assoc. Editor: Kornel Ehmann.

J. Manuf. Sci. Eng 135(1), 011012 (Jan 24, 2013) (9 pages) Paper No: MANU-10-1147; doi: 10.1115/1.4023266 History: Received May 17, 2010; Revised December 08, 2012

Electrochemical grinding (ECG) at macrolevel and microlevel finds increasing use in medical device manufacturing industry. To enhance application of micro-ECG, a comprehensive study of the role electrolyte flow in the formation of hydroxide layer on a workpiece due to electrochemical dissolution, and its removal due to abrasion by a grinding wheel, and erosion by an electrolyte flow has been conducted. Specifically, this paper presents modeling and experimental analysis of turbulent flow in the interelectrode gap (IEG) in the micro-ECG to predict shear stresses at the workpiece boundary. It was found that the shearing forces on the hydroxide layer increase with an increase in electrolyte flow velocity but are halved when the IEG is doubled. Besides elucidating the process mechanism, the theoretical values of forces and metal removal rate (MRR) have been validated experimentally.

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Masuzawa, T., 2000, “State of the Art of Micromachining,” CIRP Ann., 49(2), pp. 473–488. [CrossRef]
Dornfeld, D., Min, S., and Takeuchi, Y., 2006, “Recent Advances in Mechanical Micromachining,” CIRP Ann., 55(2), pp. 745–768. [CrossRef]
Gaikwad, K., and Joshi, S. S., 2008, “Modeling of Material Removal Rate in Micro-ECG,” ASME J. Manuf. Sci. Eng., 130(3), p. 034502. [CrossRef]
Rajurkar, K. P., Levy, G., Malshe, A., Sundaram, M. M., McGeough, J., Hu, X., Resnick, R., and DeSilva, A., 2006, “Micro and Nano Machining by Electro-Physical and Chemical Processes,” CIRP Ann., 55(2), pp. 643–666. [CrossRef]
Rajurkar, K. P., Zhu, D., McGeough, J. A., Kozak, J., and De Silva, A., 1999, “New Developments in Electro-Chemical Machining,” CIRP Ann., 48(2), pp. 567–579. [CrossRef]
Malkin, S., and Levinger, R., 1979, “Electrochemical Grinding of WC-Co Cemented Carbides,” ASME J. Eng. Industry, 101(3), pp. 285–294. [CrossRef]
Kozak, J., Rajurkar, K., and Makkar, Y., 2004, “Selected Problems in Micro-Electrochemical Machining,” J. Mater. Process Technol., 149(1–3), pp. 426–431. [CrossRef]
Kaczmarek, J., and Zachwieja, T., 1966, “Investigations on the Material Removal Rate by Electrochemical Grinding of Cutting Tool Materials in Dependence on the Properties of the Grinding Wheel,” Int. J. Mach. Tool Des. Res., 6(1), pp. 1–13. [CrossRef]
Ilhan, R., Sathyanarayanan, G., Storer, R., and Phillips, R., 1992, “A Study of Wheel Wear in Electrochemical Surface Grinding,” ASME J. Eng. Industry, 114(1), pp. 82–93. [CrossRef]
Kuppuswamy, G., 1976, “Wheel Variables in Electrolytic Grinding,” Tribol. Int., 9(1), pp. 29–32. [CrossRef]
Geddam, A., and Noble, C. F., 1981, “An Assessment of the Influence of Some Wheel Variables in Peripheral Electrochemical Grinding,” Int. J. Mach. Tool Des. Res., 11, pp. 1–12. [CrossRef]
Cole, R. R., 1961, “An Experimental Investigation of the Electrolytic Grinding Process,” ASME J. Eng. Industry, 83(2), pp. 194–201. [CrossRef]
Hourng, L. W., and Chang, C. S., 1994, “Numerical Simulation of Two-Dimensional Fluid Flow in Electrochemical Drilling,” J. Appl. Electrochem., 24, pp. 1170–1175. [CrossRef]
Blazek, J., 2001, Computational Fluid Dynamics: Principles and Applications, 1st ed., Elsevier Science Limited, Oxford, UK.
Garde, R. J., 1994, Turbulent Flow, Wiley Eastern Ltd., New Delhi, India, pp. 103–119.
Zienkiewicz, O. C., Taylor, R. L., and Nithiarasu, P., 2005, The Finite Element Method for Fluid Dynamics, 6th ed., Butterworth-Heinemann, New York, pp. 248–256.


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Fig. 1

Contributors to material removal in micro-ECG

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Fig. 2

Grid generation and boundary conditions in computation domain

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Fig. 3

Demonstrating grid independence of typical results

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Fig. 4

Contours showing velocity magnitude and distribution in the interelectrode gap region at grinding wheel speed of 510 rpm and electrolyte flow rate of 2.44 m/s

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Fig. 5

Profile of the electrolyte flow in the interelectrode gap in micro-ECG at wheel speed of 194 rpm for interelectrode gap of 6 μm. Inset table data for interelectrode gap of 15 μm.

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Fig. 6

Typical viscous shear stresses along the wall of the workpiece for wheel speed of 194 rpm and electrolyte flow velocity of 2.44 m/s for interelectrode gap of 6 μm. Inset table data for interelectrode gap of 15 μm.

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Fig. 7

Showing evaluation of shearing forces along the work surface periphery

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Fig. 8

(a) Power available in electrolyte flow (b) geometry of wheel, workpiece, and IEG to obtain contact length (c) shear area considered in IEG and (d) top view of IEG geometry

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Fig. 9

(a) Experimental setup for micro-ECG consisting of Kistler minidynamometer mounted under the work holding spindle and other data acquisition system (b) typical circular microgroove of 878 μm width cut using a Cu bonded PCD grinding wheel of thickness 800 μm

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Fig. 10

Contributors to the total MRR (Theoretical) in micro-ECG including, MRR Erosion, MRR Abrasion and MRR ECM and comparison with the MRR (Experimental)



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