Effect of punch diameters on shear extrusion of 6063 aluminium alloy

Mutiu F. Erinosho, Saheed O. Ojo, Joseph S. Ajiboye, Esther T. Akinlabi

Research output: Chapter in Book/Report/Conference proceedingConference contributionpeer-review

1 Citation (Scopus)


This paper reports the effect of punch diameters on the shear extrusion of 6063 Aluminium alloy. During the shear extrusion process, Aluminium billets of considerable diameter 30 mm and height 25 mm were inserted in a die hole and different punches of diameter 12 mm, 14 mm, 16 mm and 18 mm respectively were allowed to come in contact to perform the shear operation. The setup took place under a hydraulic press with maximum capacity of 600 kN. This work is aimed at studying the selection of the optimum punch diameter for shear extrusion using local groundnut oil as the lubricant. Different extrusion pressures were measured and the punch with a diameter of 18 mm gives the highest load of 77.7 kN while the punch with a diameter of 12 mm gives the lowest load of 51.2 kN. An indication shows that, an increase in the punch diameters led to an increase in the height of the extrudates and this in turn reduces the stress induced.

Original languageEnglish
Title of host publicationWCE 2015 - World Congress on Engineering 2015
EditorsS. I. Ao, Len Gelman, Len Gelman, David W.L. Hukins, Andrew Hunter, Alexander M. Korsunsky, S. I. Ao, S. I. Ao
PublisherNewswood Limited
Number of pages3
ISBN (Electronic)9789881404701
Publication statusPublished - 2015
Event2015 World Congress on Engineering, WCE 2015 - London, United Kingdom
Duration: 1 Jul 20153 Jul 2015

Publication series

NameLecture Notes in Engineering and Computer Science
ISSN (Print)2078-0958


Conference2015 World Congress on Engineering, WCE 2015
Country/TerritoryUnited Kingdom


  • 6063aluminium alloy
  • Die
  • Extrudates
  • Press
  • Punch

ASJC Scopus subject areas

  • Computer Science (miscellaneous)


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