The Influence of Process Variables on the Pressure Requirements for the Extrusion of Titanium Alloy Rods

  • F. J. Gurney
  • A. T. Male


Information is presented which is based on the experimentally measured deformation pressures required for round-to-round axisymmetric extrusion of three titanium alloys; the alpha alloy Ti-5A1-2.5Sn, the alpha-beta alloy Ti-6A1-4V and the beta alloy Ti-13V-11Cr-3A1. All work was accomplished utilizing three inch diameter by five and one-half inch long billets and all billets were extruded through ZrO2 coated tool steel dies. The lubrication system was the same for all extrusions and consisted of a glass powder coating which was applied to the billet prior to heating, and an aluminum and graphite impregnated grease base container and die lubricant which was applied by swabbing immediately prior to extrusion. Extrusions were performed over a temperature range of 1500°F to 2150°F for reduction ratios from 6:1 to 20:1. Other process variables investigated were ram speed, die angle and container temperature.


Titanium Alloy Extrusion Ratio Extrusion Pressure Beta Transus Beta Alloy 
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  1. 1.
    F. J. Gurney and A. T. Male, “The Relationship of Microstructure and Mechanical Properties of Extruded Titanium Alloy Bars to the Prior Deformation Processing History”, AFML-TR-71–28, April 1971.Google Scholar
  2. 2.
    Attwell M. Adair and James A. Roberson, “The Influence of Processing Variables on the Structure and Properties of Extruded Beta III Titanium”, AFML-TR-70–277, March 1971.Google Scholar
  3. 3.
    I. Perlmutter, V. De Pierre and C. M. Pierce, “Lubrication as a Parameter in the Extrusion of Metals”, ASME Symposium on Friction and Lubrication in Metal Processing June 1966, p 147.Google Scholar

Copyright information

© Springer Science+Business Media New York 1973

Authors and Affiliations

  • F. J. Gurney
    • 1
  • A. T. Male
    • 1
  1. 1.Westinghouse Electric CorporationUSA

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