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Additive Manufacturing Of Inconel 625 Superalloy Produced By Electron Beam Melting.

  • : Edouard Chauvet1, Martin Guilhem1, Jean-Jacques Blandin1, Remy Dendievel1, Benjamin Vayre2, Stéphane Abed2
  • : 1Simap Grenoble, 2PolyShape
  • : PDF Download
  • : 2016


An increasing demand has recently emerged from the automotive and aerospace industries to investigate the production of Ni-base superalloys parts using EBM technology. In the present contribution, we confirm that Inconel 625 is a good candidate to be manufactured by EBM.The as-received Inconel 625 powder has been characterized to establish its EBM compatibility. The melting parameters have been optimized using a design of experiment approach based on beam current, spot size (focus offset) and scanning speed. This study investigates the impact of process parameters on processing time, microstructure, chemical composition, surface finish as well as on porosity. Near fully dense parts (?99,5%) were achieved. The  powder main characteristics have also been studied after 10 builds to estimate their recyclability.Furthermore, a comparison between Inconel 625 parts made by EBM and LBM was established. Here we focus on differences in terms of rate productivity and powder recyclability.


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