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Strain Distribution and Friction Along the Mandrel in the Hydrostatic Extrusion-Drawing of Tubes

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Proceedings of the Twentieth International Machine Tool Design and Research Conference

Summary

Experimental results are presented which provide new information for the design of fixed mandrels used in the extrusion and drawing of tubes.

A hydrostatic extrusion-drawing apparatus is described, together with instrumentation to record strains in the bore of the hollow mandrel and force due to friction along the deforming material-mandrel interface.

Aluminium and copper specimens were extruded into tubes, while the frictional load, the fluid pressure and the drawing force, together with the hoop and axial strains in the bore of the mandrel were recorded simultaneously.

Experimental frictional loads and strain distributions are given for various extrusion pressure-drawing stress ratios.

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References

  1. B. LENGYEL and J.K. MUSUVA (1976) Strain and Pressure Distribution in Extrusion Containers, Proc. 17th MTDR Conference.

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  2. B. LENGYEL and P.G. ASHFORD (1967) An Experimental Pre-Production Unit for Semi-Continuous hydrostatic Extrusion, Proc. 8th MTDR Conference.

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  3. P. DUNN and B. LENGYEL (1972) Lubrication and Friction in Hydrostatic Extrusion/ Drawing, J. Inst. Metals, Vol. 100, p. 317–321.

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  4. B. PARSONS, D. BRETHERTJN and B.N. COLE, (1968) A Preliminary Investigation of the Combined Hydrostatic Extrusion and Drawing Process, Proc. 9th MTDR Conference.

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  5. H.L1.D.PUGH (1971) The Mechanical Behaviour of Materials under Pressure, Materials Science Series, London.

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  6. M.J.M.B. MARQUES (1979) Ph.D. Thesis to be presented.

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Author information

Authors and Affiliations

  1. Department of Mechanical Engineering, Imperial College of Science and Technology, Exhibition Road, London, UK

    B. Lengyel & M. J. M. B. Marques

Authors
  1. B. Lengyel
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  2. M. J. M. B. Marques
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Editor information

Editors and Affiliations

  1. Department of Mechanical Engineering, University of Birmingham, UK

    S. A. Tobias (Chance Professor and Head of Department ) (Chance Professor and Head of Department )

Copyright information

© 1980 The Department of Mechanical Engineering, University of Birmingham

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Cite this chapter

Lengyel, B., Marques, M.J.M.B. (1980). Strain Distribution and Friction Along the Mandrel in the Hydrostatic Extrusion-Drawing of Tubes. In: Tobias, S.A. (eds) Proceedings of the Twentieth International Machine Tool Design and Research Conference. Palgrave Macmillan, London. https://doi.org/10.1007/978-1-349-05172-4_13

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  • DOI: https://doi.org/10.1007/978-1-349-05172-4_13

  • Publisher Name: Palgrave Macmillan, London

  • Print ISBN: 978-1-349-05174-8

  • Online ISBN: 978-1-349-05172-4

  • eBook Packages: Springer Book Archive

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