Multi-objective optimization of die geometry in ingot forging

Peter Christiansen, Paulo A.F. Martins, Niels Bay, Jesper Henri Hattel

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Abstract

The soundness of an ingot after hot forging with different V-shaped lower dies is evaluated using finite element simulations.Two different modelling approaches that make use of uncoupled ductile damage and coupled ductile damage based on porousplasticity are employed. It is shown that the two approaches provide somewhat different results. A simple quantification schemeis suggested for ranking the overall performance of the different geometries of the V-shaped lower dies. Results show that alower die angle in the range 90°-120° is capable of ensuring the best results.
Original languageEnglish
JournalProcedia Engineering
Volume81
Pages (from-to)2457–2462
ISSN1877-7058
DOIs
Publication statusPublished - 2014
Event11th International Conference on Technology of Plasticity - Nagoya Congress Center, Nagoya, Japan
Duration: 19 Oct 201424 Oct 2014
Conference number: 11

Conference

Conference11th International Conference on Technology of Plasticity
Number11
LocationNagoya Congress Center
CountryJapan
CityNagoya
Period19/10/201424/10/2014

Bibliographical note

© 2014 Published by Elsevier Ltd. This is an open access article under the CC BY-NC-ND license

Keywords

  • Ingot forging
  • V-shaped die
  • FEM simulation
  • Porous plasticity
  • Ductile damage

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