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Micro Drilling using 2-directional Vibration in a Plane  

Kim, Gi Dae (대구가톨릭대학교 기계자동차공학부)
Publication Information
Journal of the Korean Society of Manufacturing Process Engineers / v.9, no.4, 2010 , pp. 38-43 More about this Journal
Abstract
By generating 2-directional vibration in a xy plane of workpiece table, a newly developed micro drilling using 2-directional vibration was carried out. The vibration was produced by applying sinusoidal voltages to the orthogonally arranged piezoelectric materials built in the workpiece excitation table. Through the micro-drilling experiments using poly-carbonate and brass material, it was found that micro drilling using 2-directional vibration in a workpiece table could be an efficient method to enhance the form accuracy of machined workpiece by suppressing burr formation at both entry and exit region. A higher form accuracy could be obtained by increasing stiffness of feeding mechanism, decrease of geometric tolerance of combining jig, and development of high performance excitation table which generates amplified vibration at higher frequency.
Keywords
Micro Drilling; 2-Directional Vibration; Excitation table; Burr formation; Form accuracy;
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  • Reference
1 Thoe, B., Aspinwall, K. and Wise, H., "Review on Ultrasonic Machining", International Journal of Machine Tools and Manufacture, Vol.38, No.4, pp.239-255, 1998.   DOI   ScienceOn
2 Brehl, D. E. and Dow, T. A., "Review of vibration-assisted machining," Precision Engineering, Vol. 32, No. 3, pp. 153-172, 2008.   DOI   ScienceOn
3 Moriwaki, T., Shamoto, E., Song, Y. C. and Kohda, S., "Development of a Elliptical Vibration Milling Machine," Annals of the CIRP, Vol. 53, No. 1, pp. 341-344, 2004.   DOI   ScienceOn
4 Chern, G. L. and Chang, Y. C., "Using two-dimensional vibration cutting for micro-milling." International Journal of Machine Tools and Manufacture Vol. 6, Issue 6, pp. 659-666, 2006.
5 Kim, G. D. and Loh, B. G., "Characteristics of Elliptical Vibration Cutting in Micro V-grooving with Variations of Elliptical Cutting Locus and Excitation Frequency." Journal of Micromechanics and Microengineering, doi:10.1088/0960-1317/18/2/025002, 2008.