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Hip Joint Preforms Designing Steps With Inverse Finite Element Method

Nejati, Masoud | 2011

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  1. Type of Document: M.Sc. Thesis
  2. Language: Farsi
  3. Document No: 42825 (08)
  4. University: Sharif University of Technology
  5. Department: Mechanical Engineering
  6. Advisor(s): Movahhedi, Mohammad Reza; Akbari, Javad
  7. Abstract:
  8. Forging process is recognized as the high speed method, economical and with ability to produce high strength parts between metal forming processes. Preform design is the most important step in forging process. In the past this work was done based on experiences. In the complex parts because of error in design there was probability of diverse dies, so that method needed to spent so many times and costs. However recently with progress in computer programming we don’t need to produce diverse dies but spend many times. In this field many investigations are done to dispose designers skills, so forging preform design based on inverse finite elements method is denoted for this gold. In this thesis Titanium Hip joint preform design based on inverse finite element method is studied and designed. Main point is the flash reduction because of so expensive Ti-6Al-4V titanium alloy. To simplify the design procedure the complex part is broken to several 2D plane strain problems. Inverse finite element method is implemented to this 2D sections. After combining 2D preform achieved from inverse method, preform forging simulation in 3D space is done in DEFORM-3D . then for achieving 3D preform shape from raw material, bending and blocking process must be done.

  9. Keywords:
  10. Inverse Finite Element Method ; Forging ; Preform Designing ; Hip Implant

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