Browse > Article
http://dx.doi.org/10.14775/ksmpe.2016.16.1.134

The Exit Hole Burr Generation of CFRP with Ultrasonic Vibration  

Won, Sung-Jae (School of Mechanical Engineering, Yeungnam UNIV.)
Li, Ching-Ping (School of Mechanical Engineering, Yeungnam UNIV.)
Park, Ki-Moon (School of Mechanical Engineering, Yeungnam UNIV.)
Ko, Tae Jo (School of Mechanical Engineering, Yeungnam UNIV.)
Publication Information
Journal of the Korean Society of Manufacturing Process Engineers / v.16, no.1, 2017 , pp. 134-140 More about this Journal
Abstract
CFRP has many industrial applications due to its low weight and high strength properties. CFRP is a composite material composed of carbon fibers embedded in a polymer matrix; it provides excellent resistance to fatigue wear, corrosion, and breakage due to fatigue. It is increasingly demanded in aircraft, automotive, and medical industries due to its superior properties to aluminum alloys, which were once considered the most suitable for specific applications. The basic machining methods of CFRP are drilling and route milling. However, in the case of drilling, the delamination of each layer, uncut fiber, resin burning, spalling, and exit burrs are barriers to successful application. This paper investigates the occurrence of exit burrs when drilling holes with ultrasonic vibration. Depending on design parameters such as the point angle, the characteristics of hole drilling were identified and appropriate machining conditions were considered.
Keywords
CFRP; Ultrasonic Vibration; Drilling; Burr;
Citations & Related Records
Times Cited By KSCI : 2  (Citation Analysis)
연도 인용수 순위
1 H. Yagishita., "Cutting Mechanism of Drilling CFRP Laminates and Effect of Ultrasonic Torsional Mode Vibration Cutting," Transactions of NAMRI/SME, Vol.34, pp.213-220, 2006.
2 W. Koenig, Ch. Wolf, P. Grass, H. Willerscheid, "Machining of Fiber Reinforced Plastics," Annals of the CIRP, Vol. 34, No. 2, pp. 537-548, 1985.   DOI
3 Lee, Y., Shin, G, Kwak, T., "Deburring technology of vacuum plate for MLCC lamination using magnetic abrasive polishing and ELID process," J. of KSMPE, Vol. 14, No. 3, pp. 149-154, 2015.   DOI
4 Bae, J., Park, H., Kwon, B., Ko, S., "Determination of cutting conditions for an efficient deburring process using a new deburring tool," J. of KSMPE, Vol. 15, No. 4, pp. 109-117, 2016.
5 Malick, P. K., Fiber-Reinforced Composite, M. Dekker, pp. 20-40, 1988.
6 Cheong S. K., and Jeong S. K., "Mechanical Behavior of Laminated Composites Using Scrim prepregs for Fishing Rods," Composites Research, Vol. 12, No. 5, pp.80-86, 1999.
7 Moreland, M. A., "Versatile Performance of Ultrasonic Machining.," Cer. Bull., Vol. 67, No. 6, pp. 1045-1046, 1988.
8 Gilmore R., "Ultrasonic Machining and Orbital Abrasion Techniques," SME Technical Paper(Series) AIR, NM89-419, pp. 1-20, 1989.
9 Neppiras, E. A. and Foskett, R. D., "Ultrasonic Machining- II. Operating Conditions and performance of Ultrasonic drills," Philips Tech. Rev., Vpl. 18, No. 12, pp. 368-379, 1957.
10 Moore D., "Ultrasonic Impact Grinding," Proc. Non-Traditional Machining Conf., Cincinnati, pp.137-139, 1985.
11 Kovalchenko, M. S., Paustovskii, A. V. and Perevyazko, V. A.,"Influence of properties of abrasive materials on the effectiveness of ultrasonic machining of ceramics," Powder Metallurgy and Metal Ceramics, Vol. 25, No. 7, pp. 560-562, 1986.