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Material Flow and Pressure Prediction when Extruding through Bridge Dies

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Published/Copyright: December 16, 2021
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International Journal of Materials Research
From the journal International Journal of Materials Research Volume 89 Issue 5

Abstract

Extrusion of the alloy 6063 through bridge dies producing hollow shapes is a problem common in the aluminium industry. This communication reviews previous work on the extrusion of both hollow and solid shapes and presents methods to determine the pressure requirements and assess the difficulty of extrusion of shaped extrusions in general. Material flow through the bridge die is investigated by optical macroscopy and by use of a finite element program. It is shown that the pressure may be predicted by upper bound techniques and that the process has the same thermally activated features as that for rod extrusion. The finite element program appears to predict all the major characteristics of the flow observed macroscopically.

T. Sheppard, Department of Product Design and Manufacture Bournemouth University, Studland House, 12 Christchurch Rd., Bournemouth, BH1 3NA, UK
H. B. McShane, Department of Materials, Imperial College of Science, Technology and Medicine, Prince Consort Rd., London SW7 2BP, UK

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Received: 1997-08-11
Published Online: 2021-12-16

© 1998 Carl Hanser Verlag, München

Articles in the same Issue

  1. Frontmatter
  2. Aufsätze
  3. Solid State Sintering of Cemented Carbides – An Experimental Study
  4. Sintering of WC–Co Under Axial Load
  5. Material Flow and Pressure Prediction when Extruding through Bridge Dies
  6. Influence of a Grain Size Gradient on the Profile and Propagation of Fatigue Cracks in Titanium
  7. Tribologische Untersuchungen an einer NiTi- Formgedächtnislegierung sowie an Ni und Ti unter Variation der Belastung
  8. Effect of Copper on the Creep Behaviour of Gravity-cast Zinc–Aluminium-based ZA-8 Alloy
  9. Microstructural Aspects of Serrated Yielding Behavior in the Al–Li 8090 Alloy
  10. New Methods to Produce Electrocatalytic Lead (IV) Dioxide Coatings on Titanium and Stainless Steel
  11. Thermodynamic Evaluation of the Surface Tension of Molten Salt Mixtures in Common Ion Alkali–Halide Systems
  12. Non-destructive Microstructure Examination of Boiler Tubes Using Penning Discharge Micro-Sputtering Technique
  13. Mitteilungen der Deutschen Gesellschaft für Materialkunde e.V.
  14. Personen
  15. Buchbesprechungen
  16. From the web
  17. Terminkalender
https://doi.org/10.3139/ijmr-1998-0059

Articles in the same Issue

  1. Frontmatter
  2. Aufsätze
  3. Solid State Sintering of Cemented Carbides – An Experimental Study
  4. Sintering of WC–Co Under Axial Load
  5. Material Flow and Pressure Prediction when Extruding through Bridge Dies
  6. Influence of a Grain Size Gradient on the Profile and Propagation of Fatigue Cracks in Titanium
  7. Tribologische Untersuchungen an einer NiTi- Formgedächtnislegierung sowie an Ni und Ti unter Variation der Belastung
  8. Effect of Copper on the Creep Behaviour of Gravity-cast Zinc–Aluminium-based ZA-8 Alloy
  9. Microstructural Aspects of Serrated Yielding Behavior in the Al–Li 8090 Alloy
  10. New Methods to Produce Electrocatalytic Lead (IV) Dioxide Coatings on Titanium and Stainless Steel
  11. Thermodynamic Evaluation of the Surface Tension of Molten Salt Mixtures in Common Ion Alkali–Halide Systems
  12. Non-destructive Microstructure Examination of Boiler Tubes Using Penning Discharge Micro-Sputtering Technique
  13. Mitteilungen der Deutschen Gesellschaft für Materialkunde e.V.
  14. Personen
  15. Buchbesprechungen
  16. From the web
  17. Terminkalender
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