Simultaneous topology and deposition direction optimization for Wire and Arc Additive Manufacturing

V. Mishra*, C. Ayas, M. Langelaar, F. van Keulen

*Corresponding author for this work

Research output: Contribution to journalArticleScientificpeer-review

Abstract

A remarkable elastic anisotropy in plates of austenitic stainless steel produced by the Wire and Arc Additive Manufacturing process is recently reported. The Young's modulus depends on the angle of orientation with respect to the material deposition direction. Here, for the first time, this anisotropy is exploited to maximize structural stiffness by simultaneously optimizing the structural design layout and the local deposition path direction for WAAM. The results obtained indicate deposition that is commonly preferred along the load-path directions for WAAM is sub-optimal and stiffness can be increased at least 53% upon optimizing the deposition directions.

Original languageEnglish
Number of pages7
JournalManufacturing Letters
DOIs
Publication statusAccepted/In press - 2021

Keywords

  • Additive manufacturing
  • Deposition directions
  • Deposition path
  • Topology optimization
  • WAAM

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