CIRP Encyclopedia of Production Engineering

2014 Edition
| Editors: The International Academy for Production Engineering, Luc Laperrière, Gunther Reinhart

Bar Extrusion

  • A. Erman Tekkaya
  • Sami Chatti
Reference work entry
DOI: https://doi.org/10.1007/978-3-642-20617-7_20

Synonyms

Definition

Pushing a billet enclosed in a container through a die to form an extrudate.

Theory and Application

Introduction

Bar extrusion is a process in which a block of metal (billet) is forced to flow by compression through a tool (die) opening of a smaller cross-sectional area than that of the original billet. There are two basic types of bar extrusion: direct and indirect. The most important and common method used is the direct extrusion (Lange 1988). Figure 1 shows the principle of direct bar extrusion where the billet is placed in the container and pushed through the die by moving a ram towards the die (Saha 2000).
This is a preview of subscription content, log in to check access.

Supplementary material

978-3-642-20617-7_2_Part_MOESM1-20_ESM.gif (573 kb)
Video. 1 (GIF 573 kb)
978-3-642-20617-7_2_Part_MOESM2-20_ESM.gif (912 kb)
Video. 2 (GIF 913 kb)
978-3-642-20617-7_2_Part_MOESM3-20_ESM.gif (325 kb)
Video. 3 (GIF 325 kb)

References

  1. Bauser M, Sauer G, Siegert K (2001) Strangpressen [Bar extrusion]. Aluminium Verlag, Dusseldorf (in German)Google Scholar
  2. Fritz AH, Schulze G (2008) Fertigungstechnik [Production engineering], 8th edn. Springer, Berlin (in German)CrossRefGoogle Scholar
  3. Lange K (1988) Umformtechnik, Bd. 2: Massivumformung [Metal forming, Vol. 2: bulk metal forming]. Springer, Berlin (in German)Google Scholar
  4. Ostermann F (2007) Anwendungstechnologie aluminium [Technological application of aluminum]. Springer, Berlin (in German)Google Scholar
  5. Saha PK (2000) Aluminum extrusion technology. ASM, USAGoogle Scholar
  6. Schikorra M, Donati L, Tomesani L, Kleiner M (2006) Role of friction in extrusion of 6060. In: AMPT-Conference 2006 Proceedings, Las Vegas, NevadaGoogle Scholar
  7. Sheppard T (1999) Extrusion of aluminium alloys. Kluwer, DordrechtCrossRefGoogle Scholar

Copyright information

© CIRP 2014

Authors and Affiliations

  1. 1.Institute of Forming Technology and Lightweight ConstructionTechnical University of DortmundDortmundGermany
  2. 2.Institut für Umformtechnik und LeichtbauTechnical University of DortmundDortmundGermany