Fundamental issues in self-excited chatter in grinding

• Autorzy: Entwistle R. , Stone B.
• Języki publikacji: EN

Abstrakty

EN

The modelling of chatter in grinding is more complex than for metal cutting. This is because the number of parameters that influence the onset of chatter in grinding is daunting. Also, unlike metal cutting, the growth of chatter in grinding may take a significant time and so growth rates are also important. Initially the modelling of grinding chatter was simply an extension of that already developed for metal cutting. However this was soon found to be inadequate and the models were increased in complexity to include improved grinding force models the contact stiffness of the wheel and regeneration of surface waves on both the work and wheel. Some solutions to chatter in grinding were also proposed. Most notably these included the use of varying speed and flexible grinding wheels. This position paper re-visits the almost universal assumption that grinding chatter is always regenerative. It is shown that a grinding force model for oscillating conditions, that has been experimentally confirmed, indicates that both torsional vibration and non-regeneration need to be considered. The consequences for current methods of chatter elimination are discussed.

Słowa kluczowe

EN

chatter; grinding; vibration; contact stiffness; regeneration

• Wydawca: Wydawnictwo Wrocławskiej Rady FSNT NOT
• Czasopismo: Journal of Machine Engineering
• Rocznik: 2013
• Tom: Vol. 13, No. 3
• Strony: 26--50
• Opis fizyczny: Bibliogr. 26 poz., rys.

Twórcy

autor

Entwistle R.

• Curtin University, Western Australia

autor

Stone B.

• Curtin University, Western Australia

Bibliografia

• [1] INASAKI I., KARPUSCHEWSKI B., LEE H.S., 2001, Grinding chatter – origin and suppression, CIRP Annals - Manufacturing Technology, 50/2, 515-534.
• [2] ARNOLD R.N., 1946, The mechanism of tool vibration in the cutting of steel, Proc. I.Mech.E, 154.
• [3] HAHN R.S., 1952, Metal-cutting chatter and its elimination, ASME, 1073-1080.
• [4] TLUSTY J., SPACEK L., 1954, Self-excited vibrations in machine tools. Czech. Naklad. CSAV, Prague.
• [5] TOBIAS S.A., FISHWICK W., 1956, The vibrations of radial drilling machines under test and working conditions, Proceedings, I. Mech. E 170, 232-247.
• [6] TOBIAS S.A., FISHWICK W., 1957, The chatter of lathe tools under orthogonal cutting conditions, TRANS. ASME, 80, 1079-1088.
• [7] TOBIAS S.A., 1959, The vibrations of vertical milling machines under test and working conditions, Proc. Inst, Mech.Engrs, 173/18, 474–510.
• [8] GURNEY J.P., TOBIAS S.A., 1961, A graphical method for the determination of the dynamic study of machine tools, Int. J. Mach. Tool Des. Res., 1, 148–156.
• [9] ITO Y., 2013, fundamental issues of self-excited chatter vibration in turning, Special Issue within Journal of Machine Engineering (to be published).
• [10] INASAKI I., 1977, Selbsterregte Ratterschwingungen beim Schleifen, Methoden zu jhrer Unterdruckung, Werkstatt und Betrieb 110/8, 521-524.
• [11] SNOEYS R., BROWN D., 1969, Dominating parameters in grinding wheel and workpiece regenerative chatter, Proceedings of the 10th International Machine Tool Design and Research Conference, 325-348.
• [12] ENTWISTLE R.D., 1997, Torsional compliance and chatter in grinding, PhD Thesis, The University of Western Australia.
• [13] DREW S.J., MANNAN, M. A., ONG, K. L. and STONE, B. J., 2001, The measurement of forces in grinding in the presence of vibration. International Journal of Machine Tools and Manufacture, 41, 509-520.
• [14] QURESHI R.A., MANNAN, M. A., DREW, S. J. and STONE, B. J., 2002, A comparison of grinding forces arising from oscillating work piece speed and chip thickness. Transactions of the North American Manufacturing Research Institution of SME, XXX, 169-176.
• [15] QURESHI R.A., MANNAN M.A., DREW S.J., STONE B.J., 2013, Experimental investigation of grinding forces resulting from oscillating chip thickness. Journal of Machine Engineering.
• [16] QURESHI R.A., 2002, Experimental investigation of dynamic forces due to chip thickness variation and work piece rotational speed variation in plunge grinding, Masters Thesis, The National University of Singapore.
• [17] ENTWISTLE R.D., STONE B.J., 1996, Torsional compliance in grinding chatter, Proc. Eleventh Annual Meeting of The American Society for Precision Engineering, 9/14 November, 420-423.
• [18] CHIU N., MALKIN S. 1993, Computer simulation for cylindrical plunge grinding, CIRP Annals - Manufacturing Technology, 341/1, 383-387.
• [19] drew s.j., stone b j., 1997, torsional (rotational) vibration - excitation of small rotating machines, journal of sound and vibration, journal of sound and vibration, 201/4, 437-463.
• [20] BAYLIS R.J., STONE B.J., 1989, The Effect of Grinding Wheel Flexibility on Chatter, CIRP Annals - Manufacturing Technology, 38/1, 307-310.
• [21] HOSHI T., MATSUMOTO S., MITSUI S., HORIUCHI 0., KOUMOTO Y., 1986, Suppression of wheel regenerative grinding vibration by alternating wheel speed, JSPE, 52-10,1802-1807.
• [22] SEXTON J.S., HOWES T.D., STONE B.J., 1982, The use of increased wheel flexibility to improve chatter performance in grinding. Proc. I. Mech. E., 196/25, 291-300.
• [23] SEXTON J.S., STONE B.J., 1981, The development of an ultra-hard abrasive grinding wheel which suppresses chatter. Annals of CIRP, 30/1/81, 215-218.
• [24] STONE B.J., 2013/14. Chatter and machine tools. Book to be published by Springer.
• [25] PEARCE T.R.A., STONE B. J., 2011, Unstable vibration in centreless grinding: Part A. Geometric instability or chatter. Proceedings of IMechE Part B, Journal of Engineering Manufacture, 225/8, 1227-1243.
• [26] PEARCE T.R.A., STONE B.J., 2011, Unstable vibration in centreless grinding: Part B. Graphical method. Proceedings of IMechE Part B, Journal of Engineering Manufacture, 225/8, 1245-1254.