Metal Additive Manufacturing Conference - MAMC 2020

As all technical production processes, every additive manufacturing technology offer advantages and drawbacks. While laser powder bed fusion (L-PBF) offers high precision and fine details, Direct Energy Deposition (DED) offers the possibility of creating large parts with high build rates. Aim of this study is to investigate material properties of hybrid parts made from Ti6Al4V by these two additive manufacturing processes. In comparison to already tried materials like Steels [1] and Nickel superalloys Ti64 bring new challenges concerning microstructure and oxidation. Therefore, samples in varying orientation are build on an L-PBF machine and afterwards completed with a DED system. Further on they are machined according to standard and heat threatened. Test include static and dynamic characterization as well as investigation of the microstructure and adaptation of heat treatment to reach satisfying properties for hybrid parts. [1] Advanced manufacturing approach via the combination of selective laser melting and laser metal deposition; J. Schneider, A. Seidel, J. Gumpinger, M. Riede, E. López, F. Brueckner, and C. Leyens, J. Laser Appl. 31, 022317 (2019);