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Evaluation of Chip-Tool Interface Conditions using Transparent Tools
Technical Paper
1999-01-1563
ISSN: 0148-7191, e-ISSN: 2688-3627
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English
Abstract
In-situ high speed photographic observations through transparent ceramic cutting tools have been used to observe the dynamic contact interactions at the chip-tool interface while cutting commercially pure copper under a range of cutting speeds and rake angles. Under all conditions it is observed that the chip slides over the rake surface of the tool close to the cutting edge. Under low cutting speeds some chip material is transferred to the tool where the chip curls out of contact with the tool in the form of a fairly thick deposit. At higher cutting speeds a fine layer of chip material is transferred to the tool closer to the cutting edge and the thick deposits formed at lower speed are removed. The tendency for deposition is decreased as the rake angle is decreased. In all cases the dynamic nature of the cutting process and the slow evolution of the deposition are clearly evident.
Authors
Citation
Gomatam, H. and Madhavan, V., "Evaluation of Chip-Tool Interface Conditions using Transparent Tools," SAE Technical Paper 1999-01-1563, 1999, https://doi.org/10.4271/1999-01-1563.Also In
References
- Lee, E.H. Shaffer, B. W. 1971 The theory of plasticity applied to a problem of machining J. Appl. Mech. 73 405 413
- deChiffre, L.D. 1977 Mechanics of metal cutting and cutting fluid action Int. J. Mach. Tool Des. Res. 225
- Shaw, M.C. 1984 Metal Cutting Principles Oxford Series on Advanced Manufacturing Clarendon, Oxford
- Zorev, N.N. 1958 Results of work in the field of the mechanics of the metal cutting process Proc. of Conf. On Tech. of Engg. Manufacture, Inst of Mech. Engineers 255
- Finnie, L. Shaw, M. C. 1960 Friction process in metal cutting Transactions of the ASME 82 34
- Wallace, P.W. Boothroyd, G. 1964 Tool forces and tool chip friction in orthogonal machining Journal of Mechanical Engineering Sciences 6 1 74 Proc. R. Soc Lond. A 366 173 187
- Trent, E. M. 1967 Conditions of seizure at the chip toll interface Machinability, ISI Special Report 94 11
- Bailey, J. A. 1975 Friction in metal machining -mechanical aspects Wear 2443
- Nakayama, K. 1959 Studies of the mechanism of metal cutting Bull. Fac.Eng.Yokohama Nat. Univ. Japan 8 1 26
- Wright, P. K. Trent, P. M. 1974 Metallurgical appraisal of wear mechanisms and processed on high speed tools Metals Technology 13
- Kattwinkel, W. 1957 Experimentation of cutting action by means of photoelasticity Ind. Anzeig 36 525 German
- Usui, E. Takayama, H. 1960 Photoelastic analysis of machining stresses J. Eng. Ind., ASME 82 303 308
- Chandrasekharan, H. Kapoor, D. V. 1965 Photoelastic analysis of tool chip interface stresses Journal of Engineering for industry, Trans. ASME 87 495
- Horne, J. G. Doyle, E. D. Tabor, D. 1977 Direct observations of chip toll interface in metal cutting Proceedings of the fifth North American Metal Working Research Conference SME, Amherst, Mass. 237 241
- Doyle, E. D. Horne, J. G. Tabor, D. 1979 Frictional interactions between chip and rake face in continuous chip formation Proc. R. Soc Lond. A 366 173 187
- Williams, J.A. Tabor, D. 1977 The role of lubricants in machininng Wear 150 160
- Pepper, S. 1979 Effect of interfacial species on shear strength of metal-sapphire contacts Journal of Applied Physics Vol 50 8062 8066
- Wright, P. K. Horne, J. G. Tabor, D. 1979 Boundary conditions at the chip tool interface in machining: comparison between seizure and sliding friction Wear 54 371 390
- Wright, P. K. 1981 Frictional interactions in machining: comparison between transparent sapphire and steel cutting tools Metal Technology 150 160
- Bagchi, A. Wright, P. K. 1987 Stress analysis in machining with the use of sapphire tools Proc. R. Soc Lond. A 409 90 113
- Bailey, J. A. 1975 Friction in metal machining - mechanical aspects Wear 2443
- Madhavan, V. Chandrasekar, S. Farris, T.N. 1997 Direct observation of the chip-tool interface in machining Proceedings of the symposium on Predictive modeling of metal cutting as means of bridging the gap between theory and practice, ASMEIMECE ‘97, Dallas, MED-Vol. 6-2 45 52
- Rapier, A. C. 1954 A theoretical investigation of the temperature distribution in the metal cutting process British Journal of Applied Physics 5 400 405