Browse > Article

Effects of Mixing Chamber Shape on Cutting Performance in AWJ  

Lee, Hyo-Ryeol (부산대학교 기계공학부 대학원)
Kwak, Yong-Kil (부산대학교 기계공학부)
Kim, Hwa-Young (부산대학교 기계공학부)
Ahn, Jung-Hwan (부산대학교 기계공학부)
Yeo, Myeong-Heon ((주)TOPS)
Publication Information
Journal of the Korean Society of Manufacturing Technology Engineers / v.20, no.5, 2011 , pp. 535-540 More about this Journal
Abstract
It is well known that abrasive waterjet (AWJ) was developed as a kind of high-density energy processing technologies. AWJ is used to obtain cutting quality of various materials such as metal, ceramics, glass and composite materials within a short manufacturing time because of the characteristics of heatless and noncontact processing. However, surface roughness and dimension error like round, burr, taper vary severely according to the processing conditions such as pressure, cutting speed, orifice diameter, stand off distance and abrasive flow rate. In this paper, the effect of the shape of mixing chamber on surface quality is studied. Three types of mixing chamber - round, parabolic, elliptical - are suggested and each performance is compared to that of cylindrical mixing chamber experimentally. From the result, is proved to be the optimal mixing chamber in the aspect of surface quality the parabolic one.
Keywords
AWJ(Abrasive Waterjet); Cutting Head; Mixing Chamber; Taper Angle; Surface Roughness;
Citations & Related Records
Times Cited By KSCI : 4  (Citation Analysis)
연도 인용수 순위
1 Kwak, J. S., and Ha, M. k., 2004, "Effect of Traverse Speed on Dimensional Error in Abrasive Water-jet," Transactions of the Korean Society of Machine Tool Engineers, Vol.13, No. 3, pp. 1-7.
2 Seo, Y. W., and Shin, Y. S., 2009, "Abrasive Waterjet Machining Charateristics of Aluminum Matrix Composites," Proceedings of the KSME 2009 Spring Annual Meeting, pp. 433-438.
3 Wang,. J, 1999, "Abrasive Waterjet Machining of Polymer Matrix Composites - Cutting Performance, Erosive Process and Predictive Models," The International Journal of Advanced manufacturing Technology, Vol. 15, No. 10, pp. 757-768.   DOI   ScienceOn
4 Park, K. S., Bahk, Y. K., Go, J. S., and Shin, B. S., 2007, "A Study on the Frosting Phenomena of Abrasive Waterjet Microcutting for Multi-layered Materials," Transactions of the Korean Society of Machine Tool Engineers, Vol.16, No. 5, pp. 183-190.
5 Jin, Y. H., Chung, N. Y., and Kim, K. H., 2004, "Characteristics of Cut Surface by Abrasive Waterjet Cutting of Titanium Alloy," 2004 KSAE Annual Conference, pp. 1441-1447.
6 Mostofa , Md. G., Kwak, Y. K., and Ahn, J. H., 2010, "Computational Fluid Analysis of Abrasive Waterjet Cutting Head," Journal of Mechanical Science and Technology, Vol. 24, No. 1, pp. 249-252.   DOI
7 Park, Y. K., Park,K. S., Kim, H. H., Shin, B. S., Ko, J. S., and Ko, J. S., 2010, "Evaluation of Efficiency on Glass Precision Machining by using Abrasive Water-jet," Journal of the Korean Society for Precision Engineering, Vol. 27, No. 7, pp. 87-93.
8 Lee, J. k., Ye, S. D., Jea, W. S., Oh, H. O., Choi, H. T., and Min, B. H., 2006, "A Study of Optimal Cutting Condition of Abrasive Water-jet According to the Taguchi Method," Proceedings of the KSME 2006 Spring Annual Meeting, pp. 1455-1460.