A Continuous Control of Cutter Posture Change for Efficient 5-Axis Machining of Impeller

Abstract:

In 5-Axis Machining of impellers, interference problems with tool and neighboring surfaces often take place due to the narrow and deep gap between blades, so the problem of avoiding interference is very important. Also, because the efficiency of turbo machines can be maximized only when fluids smoothly flow due to the characteristics of the impeller, high quality of the machined surface is required. During 5-Axis machining of these impellers, the excessive local interference avoidance, necessary to avoid interference, leads to inconsistency of cutter posture, low quality of machined surface and increase of processing time. Therefore, in order to increase the efficiency of 5-Axis Machining of impellers, it is necessary to minimize the cutter posture changes and create a continuous tool path while avoiding interference. This study, by using an MC-space algorithm for interference avoidance and an MB-spline algorithm for continuous control, is intended to create a 5-Axis machining tool path with excellent surface quality and economic feasibility; finally, this study will verify the effectiveness of the suggested method through verification processing.

• Periodical: Applied Mechanics and Materials (Volumes 110-116)
• Pages: 1619-1629
• DOI: https://doi.org/10.4028/www.scientific.net/AMM.110-116.1619
• Online since: October 2011
• Authors: H. C. Jung, J. D. Hwang, K. B. Park, Y.G. Jung
• Keywords: 5-Axis Control Machining, B-Spline, Continuous Control, C-Space

References

[1] Choi, B. K., Park, J. W. and Jun, C. S., Cutter location Data Optimization in 5-Axis Surface Machining, Computer Aided Design, Vol. 25, No. 6, pp.377-386, (1993).

DOI: 10.1016/0010-4485(93)90033-k

[2] Lee, Y. S., Non-isoparametric tool path planning by machining strip evaluation for 5-axis scultured surface machining, Computer Aided Design, Vol. 30, No. 7, pp.559-570, (1998).

DOI: 10.1016/s0010-4485(98)00822-7

[3] Choi, B. K., Kim, D. H. and Jerard, R. B., C-space Approach to Tool-path Generation for Die and Mould Machining, Computer Aided Design, Vol. 29, No. 9, pp.657-669, (1997).

DOI: 10.1016/s0010-4485(97)00012-2

[4] Morishige, K., Kase, K. and Takeuchi, Y., Collision free Tool Path Generation Using 2-Dimensional C-space for 5-Axis Control Machining, The International Journal of Advanced Manufacturing Technology, Vol. 13, No. 6, pp.393-400, (1997).

DOI: 10.1007/bf01179033

[5] Morishige, K., Wakayama, H., Optimum Toll Path Generation for 5-Axis Control Machining Considering Tool Attitude Change, The International Journal of Advanced Manufacturing Technology, Vol. 71, No. 5, pp.639-643, (2005).

[6] Hwang, J. D, Jung, Y. G., A Study on The Efficiency Improvement of Reverse Engineering and 5-axis Control Machining Using MC-space Algorithm, Journal of Korean Society of Precision Engineering , Fall Conference, pp.103-104, 2006. 10. 18.

[7] Hwang, J. D, Jung, Y. G., Modeling of a Functional Surface using a Modified B-spline, International Journal of Precision Engineering and Manufacturing Vol. 6, No. 1, pp.15-22, (2005).