Abstract
Our discussion of the properties and characteristics of a number of basic metal-forming processes has shown clearly that the soundness of the flow depends, to a very considerable degree, on the geometry of the pass. We have seen that, even in the case of simple conical drawing or extruding, changes in the die angle alone may bring about conditions that favour the onset of unsoundness or even of complete material failure. The problem of the geometry of the pass and, therefore, of the tool design assumes even greater importance in the rotary operations which are characterised by high levels of redundancy and consequently by very severe forming conditions.
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References
Köpper, H.W., and Grünner, P. Design of oblique rolling mills and plugs. Bänder Bleche Rohre. (1961), 558, 600; (1962), 21.
Emalyanenko, P.T. The theory of oblique and pilger rolling. Metallurgizdat, Moscow (1949).
Holmquist, J.L. Investigation of the piercing process by means of wax billets. Iron Steel Eng. (1952), 29, 53.
Shveikin, V.U. The ideal shape for a piercing plug. Izvestiya VUZ Chern. Met. (1960), (8), 81.
Fomichev, I.A. The working of metals. Metallurgizdat, Moscow (1954).
Teterin, P.K. Ibid.
Smirnov, V.S., and Nevizhin, M.F. Influence of plug and roll shape on the basic parameters of the piercing process. Sbornik Statei, Stal’ supplement (1961), 316.
Dobrucki, W., and Migda, T. Tooling in a tube rolling mill. Bull. Polish Patent Office (1969).
Polukhin, P.I. An experimental investigation into the piercing process. Izvestiya VUZ Chern. Met. (1961), (7), 88.
Mooshake, R. Three-roll oblique rolling mill for the manufacture of tubes and hollows from solid billets. German Patent no. 889 437.
Granovsky, S.P., Maizelis, G.S., and Mekhov, N.V. Experiments in piercing and elongating in a 3-roll tube mill. Stat (1959), (12), 1105.
Sortais, H.C., and Kobayashi, S. An optimum die profile for axisymmetric extrusion. Int. J. M.T.D.R. (1968), 8, 61.
Chen, C.T., and Ling, F.F. Upper bound solutions to axisymmetric extrusion problems. Int. J. mech. Sci. (1968), 10 (11).
Shabaik, A.H., Negroni, F., and Thompsen, E.G. An approach to die design in extrusion. Trans. A.S.M.E. (1970), paper no. 70-WA/Prod.-16.
Unksov, E.P., and Safarov, Yu.S. Experimental investigation of contact stresses in extrusion processes. Arch. Mech. Eng., Polish Academy of Sciences (1973), 20, 55.
Duffil, A.W., Hooke, C.J., and Mellor, P.B. Design of straight conical dies for hydrostatic extrusion. Proc. 9th Int. M. T.D.R. Conf., Pergamon Press, Oxford (1969).
Thiruvarudchelvan, S., and Alexander, J.M. Hydrodynamic lubrication in hydrostatic extrusion using a double reduction die. Int. J. M.T.D.R. (1971), 11, 251.
Blazynski, T.Z. A theoretical method of designing tools for metal-forming processes. Metal Forming (1967), 34, 143.
Blazynski, T.Z. Design of tools for the combined piercing—elongating tube making process. Proc. 9th Int. M.T.D.R. Conf, Pergamon Press, Oxford (1969).
Vaidyanathan, P.V., and Blazynski, T.Z. Deformation and its rate as two concepts of design of tools for the secondary piercing operation. Proc. 13th Int. M.T.D.R. Conf, Macmillan, London (1972).
Vaidyanathan, P.V., and Blazynski, T.Z. Theoretical methods of pass design for the secondary piercing process. Proc. Int. Conf. on Plastic Working of Metals, Academy of Mining and Metallurgy, Cracow (1974).
Blazynski, T.Z. Optimization of die design in the extrusion of rod using model materials. Int. J. mech. Sci. (1971), 13, 113.
Vaidvanathan, P.V., and Blazynski, T.Z. A theoretical method of efficient extrusion die design. J. Inst. Met. (1973), 101, 79.
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© 1976 T. Z. Blazynski
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Blazynski, T.Z. (1976). Concepts of Tool Design. In: Metal Forming. Palgrave, London. https://doi.org/10.1007/978-1-349-02861-0_9
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DOI: https://doi.org/10.1007/978-1-349-02861-0_9
Publisher Name: Palgrave, London
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