Variation of pressure with ram speed and die profile in hot extrusion of aluminum-6063

A. F.M. Arif*, A. K. Sheikh, S. Z. Qamar, K. M. Al-Fuhaid

*Corresponding author for this work

Research output: Contribution to journalArticlepeer-review

21 Citations (Scopus)


Prediction of extrusion pressure, especially in the case of complex die geometries, is an area of continued research interest. Die complexity, usually defined by "shape factor" (the ratio of the perimeter to the cross-sectional area of the profile), critically affects the flow of metal and the pressure required to extrude a given product. Applied strain rate (related directly to the ram speed of the extrusion press) also alters the product quality significantly. The current paper presents results of an ongoing study about effects of ram speed and die profile on extrusion pressure. Experiments were conducted using dies of different complexity to track the effects of ram speed variation and changing die profiles on extrusion pressure. Al-6063, the most popular commercial variety of structural aluminum, was used as the billet material for all experiments.

Original languageEnglish
Pages (from-to)701-716
Number of pages16
JournalMaterials and Manufacturing Processes
Issue number5
Publication statusPublished - Sept 2001
Externally publishedYes


  • Al-6063
  • Aluminum
  • Complexity index
  • Die profile
  • Extrusion
  • Extrusion parameters
  • Extrusion pressure
  • Hot extrusion
  • Ram speed
  • Shape complexity
  • Shape factor
  • Strain rate
  • Tool geometry

ASJC Scopus subject areas

  • General Materials Science
  • Mechanics of Materials
  • Mechanical Engineering
  • Industrial and Manufacturing Engineering


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