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      • Department of Industrial Engineering
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      A modified material model for the finite element simulation of machining titanium alloy Ti-6Al-4V

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      Author(s)
      Karpat, Y.
      Date
      2010
      Source Title
      Machining Science and Technology
      Print ISSN
      1091-0344
      Electronic ISSN
      1532-2483
      Publisher
      Taylor & Francis
      Volume
      14
      Issue
      3
      Pages
      390 - 410
      Language
      English
      Type
      Article
      Item Usage Stats
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      Abstract
      Because of their desirable properties, such as high strength to weight ratio and corrosion resistance, titanium alloys are commonly employed in the aerospace and medical device industries. Titanium alloys are known to be difficult to machine, so the selection of cutting conditions with minimal experimental effort is important for manufacturers. Finite element modeling, which is an indispensable tool to understand the mechanics of machining, can also be utilized as an alternative method of process design as long as the finite element simulation input parameters are well defined. Developing a modified material model for titanium alloy Ti-6Al-4V by considering the relationships between strain, strain rate and temperature is the subject of this study. The flow softening behavior of the material at high strains is also examined. The influences of the material model parameters on the finite element simulation outputs are investigated. The finite element simulation results are found to be in agreement with the data available in the literature.
      Keywords
      FEM
      Material model
      Machining
      Titanium
      Permalink
      http://hdl.handle.net/11693/22277
      Published Version (Please cite this version)
      http://dx.doi.org/10.1080/10910344.2010.512499
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      • Department of Industrial Engineering 702
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