Evaluation of the Optimum Machining Stability of a Milling Tool with Different Flutes and Overhangs

• Autorzy: Lin Yung-Chih , Wu Kung-Da , Shih Wei-Cheng , Hung Jui-Pin

Identyfikatory

DOI

10.12913/22998624/106235

• Języki publikacji: EN

Abstrakty

EN

In machining practice, the selection of the tooling condition of the cutters is an important task for milling operation with better surface quality and material remove rates. This study was therefore aimed at evaluating the influence of the tooling condition, such as the flutes and overhang length, on the machining efficiency of a milling machine by using the machining stability analysis method. Essentially, the machining stability was calculated based on the measured frequency response functions of the milling cutter, while it was also affected by the changing milling tooling path. Therefore, the machining stabilities in different feeding directions, referred to as polar stability boundary, were evaluated to show the strength and weakness of a specific cutter in contouring machining. The current results show that the overhang length greatly affects the dynamic characteristics and the limited cutting depths of the milling cutter. The stability boundaries of the machining conditions can be enhanced by appropriately adjusting the overhang of the milling cutter. Besides, the 2-flute cutter shows a larger cutting depth for surface contouring as compared to the 4-flute cutter, which is expected to increase the material remove rate under stable machining. As a whole, this study provides valuable references for enhancing the machining efficiency through the use of different tooling conditions.

Słowa kluczowe

EN

machining stability; material remove rate; milling cutter; tooling condition

PL

stabilność obróbki; szybkość usuwania materiału; frez; stan narzędzi

• Wydawca: Lublin University of Technology ; Polish Society of Ecological Engineering (PTIE), Branch of PTIE in Lublin
• Czasopismo: Advances in Science and Technology. Research Journal
• Rocznik: 2019
• Tom: Vol. 13, no 2
• Strony: 56--64
• Opis fizyczny: Bibliogr. 18 poz., fig.

Twórcy

autor

Lin Yung-Chih

• Graduate Institute of Precision Manufacturing, National Chin-Yi University of Technology, Taichung 41170, Taiwan
• Intelligent Machine Tool Technology Center, Industry Technology Research Institute, Central Region Campus, Taichung 54041, Taiwan

autor

Wu Kung-Da

• Graduate Institute of Precision Manufacturing, National Chin-Yi University of Technology, Taichung 41170, Taiwan

autor

Shih Wei-Cheng

• Graduate Institute of Precision Manufacturing, National Chin-Yi University of Technology, Taichung 41170, Taiwan

autor

Hung Jui-Pin

• Graduate Institute of Precision Manufacturing, National Chin-Yi University of Technology, Taichung 41170, Taiwan

Bibliografia

• 1. Altintas, Y., Lee, P. A general mechanics and dynamics model for helical end mills, CIRP, Annals– Manufacturing Technology, 45(1), 1996, 59–64.
• 2. Budak, E., Altintas, Y. Analytical prediction of chatter stability in milling, Part II: applications of the general formulation to common milling systems. Journal of Dynamic Systems, Measurement, and Control, 120(1), 1998, 31–36.
• 3. Smith, S., Tlusty, J. An overview of modeling and simulation of the milling process, Transactions of the ASME Journal of Engineering for Industry, 113(2), 1991, 169–175.
• 4. Tang, A., Liu, Z. Three-dimensional stability lobe and maximum material removal rate in end milling of thin-walled plate. The International Journal of Advanced Manufacturing Technology, 43(1–2), 2009, 33–39.
• 5. Hung, J.P., Lai, Y.L., Luo, T.L. and Su, H.C. Analysis of the machining stability of a milling machine considering the effect of machine frame structure and spindle bearings: experimental and finite element approaches, The International Journal of Advanced Manufacturing Technology, 68(9– 12), 2013, 2393–2405.
• 6. Law, M., Altintas, Y., Phani, A.S. Rapid evaluation and optimization of machine tools with position-dependent stability. International Journal of Machine Tools and Manufacture, 68, 2013, 81–90.
• 7. Namazi, M., Altintas, Y., Abe, T., and Rajapakse, N. Modeling and identification of tool holder– spindle interface dynamics, International Journal of Machine Tools and Manufacture,47(9)(2007) 1333–1341.
• 8. Tlusty, J., Polacek, M. The stability of machine tools against self-excited vibrations in machining. Trans. ASME, International research in production engineering, 1963, 465–474.
• 9. Tlusty, J. Dynamics of high-speed milling, Trans. ASME, Journal of Engineering for Industry 108 (2), 1986, 59–67.
• 10. Tobias, S.A., Fishwick. W. The chatter of lathe tools under orthogonal cutting conditions. Trans. ASME, Journal of Engineering for Industry, 80, 1958, 1079–1088.
• 11. Altintas, Y., Budak, E., Analytical prediction of stability lobes in milling. CIRP Annals– Manufacturing Technology, 44, 1995, 357–362.
• 12. Hung, J.P., Chang, Q.W., Wu, K.D., Chen, Y.R. Machining stability of a milling machine with different preloaded spindle. World Academy of Science, Engineering and Technology, International Journal of Mechanical, Aerospace, Industrial, Mechatronic and Manufacturing Engineering, 9(5), 2015, 894–897.
• 13. Kivanc, E.B., Budak, E. Structural modeling of end mills for form error and stability analysis. International Journal of Machine Tools and Manufacture, 44(11), 2004, 1151–1161.
• 14. Kivank, E.B., Budak, E. Modeling statics and dynamics of milling system components. In Proceedings of 36 th CIRP International Seminar on Manufacturing Systems, 2003, 433–440.
• 15. Tunc, L.T. Prediction of tool tip dynamics for generalized milling cutters using the 3D model of the tool body. The International Journal of Advanced Manufacturing Technology, 95(5–8), 2018, 1891–1909.
• 16. Grossi, N., Montevecchi, F., Scippa, A., Campatelli, G. 3D finite element modeling of holder-tool assembly for stability prediction in milling. Procedia Cirp, 31, 2015, 527–532.
• 17. Fleischer, J., Schulze, V., Klaiber, M., Bauer, J., Zanger, F., et al. The influence of tool holder technologies on milling performance. Procedia CIRP, 46, 2016, 226–229.
• 18. Xuan, X.J., Haung, Z.H., Wu, K.D., Hung, J.P. Prediction of the frequency response function of a tool holder-tool assembly based on receptance coupling method. Engineering, Technology & Applied Science Research, 8(6), 2018, 3556–3560.

Uwagi

Opracowanie rekordu w ramach umowy 509/P-DUN/2018 ze środków MNiSW przeznaczonych na działalność upowszechniającą naukę (2019).