• English
  • Deutsch
  • Log In
    Password Login
    Research Outputs
    Fundings & Projects
    Researchers
    Institutes
    Statistics
Repository logo
Fraunhofer-Gesellschaft
  1. Home
  2. Fraunhofer-Gesellschaft
  3. Artikel
  4. Geometric distortion-compensation via transient numerical simulation for directed energy deposition additive manufacturing
 
  • Details
  • Full
Options
2020
Journal Article
Title

Geometric distortion-compensation via transient numerical simulation for directed energy deposition additive manufacturing

Abstract
Components distort during directed energy deposition (DED) additive manufacturing (AM) due to the repeated localised heating. Changing the geometry in such a way that distortion causes it to assume the desired shape - a technique called distortion-compensation - is a promising method to reach geometrically accurate parts. Transient numerical simulation can be used to generate the compensated geometries and severely reduce the amount of necessary experimental trials. This publication demonstrates the simulation-based generation of a distortion-compensated DED build for an industrial-scale component. A transient thermo-mechanical approach is extended for large parts and the accuracy is demonstrated against 3d-scans. The calculated distortions are inverted to derive the compensated geometry and the distortions after a single compensation iteration are reduced by over 65%.
Author(s)
Biegler, Max  
Fraunhofer-Institut für Produktionsanlagen und Konstruktionstechnik IPK  
Elsner, B.A.M.
Graf, B.
Rethmeier, Michael  
Fraunhofer-Institut für Produktionsanlagen und Konstruktionstechnik IPK  
Journal
Science and technology of welding and joining  
DOI
10.1080/13621718.2020.1743927
Language
English
Fraunhofer-Institut für Produktionsanlagen und Konstruktionstechnik IPK  
  • Cookie settings
  • Imprint
  • Privacy policy
  • Api
  • Contact
© 2024