A method and the related equipment to obtain dynamic cutting force coefficients under simulated regenerative chatter conditions are described. The coefficients in both thrust (normal to the cut surface) and the main cutting (tangential) directions for orthogonal cutting are presented for various cutting conditions.
An algorithm which is developed to predict chatter instability by combining the receptance of a machine tool with the dynamic cutting data is also presented. Comparison of experimentally-determined stability charts of a centre lathe with the predicted ones is made to evaluate the reliability of the method.
Get full access to this article
View all access options for this article.
References
1.
TlustyJ.PolacekM., ‘The stability of the machine tool against self excited vibrations in machining’, Proceedings of the International Production Engineering Research Conference, Pittsburgh, 1963.
2.
‘Specifications and tests of metal cutting machine tools’, Proc. of Conf. UMIST, 1970.
3.
TobiasA. S.FishwickW., ‘The chatter of lathe tools under orthogonal cutting conditions’, Trans. Am. Soc. mech. Engrs, 1957, 80, 1079.
4.
DasM. K.TobiasS. A., ‘The relation between the static and the dynamic cutting of metal’, Int. J. Mach. Tool Des. Res., 1967, 7, 63–89.
5.
RubensteinC., ‘An analysis of dynamic cutting when a plane surface is cut with an oscillating tool — I and II’, Int. J. Mach. Tool Des. Res., 1972, 12, 179–192, 249–266.
6.
KainthG. S., PhD thesis, University of Birmingham, 1969.
7.
NigmM. M.SadekM. M.TobiasS. A., ‘Determination of dynamic cutting coefficients from steady state cutting data’, Int. J. Mach. Tool Des. Res.1977, 17, 19–37.
PetersJ.VanherckP.Van BrusselH., ‘Cutting coefficient’, survey lecture to the CIRP General Assembly, Warsaw, September 1971.
10.
GrieveR. J.PhD thesis, UMIST, 1971.
11.
TlustyJ.GoelB. S., ‘Measurement of the dynamic cutting force coefficient’, Proceedings of the 2nd North American Metal Working Conference1974, pp. 649–665.
12.
OpitzH.WerntzeG., ‘Application of a process control computer for measurement of dynamic cutting coefficients’, CIRP Annals, 1972, 21.
13.
KilicE.BurdekinM., ‘A critical assessment of some steady-state models for predicting the cutting dynamics in accordance with data obtained under simulated dynamic conditions’. Int. J. Prod. Res. To be published.
