Abstract
The deformation of a twist drill is studied using twenty node isoparametric solid elements. Conditions of drilling in a pilot hole are assumed for the study. The effect of varying the helix angle and the point angle on the deformation of the drill are considered. Some criteria for the best choice of the helix angle are proposed.
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References
Boston, D. W. and Gilbert, W. W. (1936) The Torque and the Thrust of Small Urill Operations in Various Metals, Trans. ASME, 58
Galloway, D. F. and Morton, l. S. (1946) Practical Drilling Tests, Research Department, The Institute of Production Engineers, London
Wiriyacosol, S. and Armarego, E. J. A. (1979) Thrust and Torque Prediction in Drilling from a Cutting Mechanics Approach, Annals of the CIRP, 28, p.87
Kronenberg, M. (1963) Grundzuge der Zerspanungs lehre, V2, SpringerVerlag, Berlin
Lorenz, G. (1979) Helix Angle and Drill Performance, Annals of the CIRP, 28, p.83
Chandrupatla, T. R. and Webster, W. D. (1982) Finite Element Deformation Analysis of a Twist Drill, Computers in Engineering, V.3, ASME, p.67
Cook, N. H. (1966) Manufacturing Analysis, Addison Wesley Publishing Company, Reading, Massachusetts
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© 1985 Department of Mechanical Engineering University of Birmingham
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Chandrupatla, T.R., Webster, W.D. (1985). Effect of Drill Geometry on the Deformation of a Twist Drill. In: Tobias, S.A. (eds) Proceedings of the Twenty-Fifth International Machine Tool Design and Research Conference. Palgrave, London. https://doi.org/10.1007/978-1-349-07529-4_25
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DOI: https://doi.org/10.1007/978-1-349-07529-4_25
Publisher Name: Palgrave, London
Print ISBN: 978-1-349-07531-7
Online ISBN: 978-1-349-07529-4
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