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Fused Filament Fabrication Of 316L Parts For The MIM Process

  • : Carlo Burkhardt1
  • : 1OBE Ohnmacht and Baumgaertner
  • : PDF Download
  • : 2016


Fused Filament Fabrication (FFF), also known under Stratasys’ trademark “Fused deposition modelling (FDM)” is a polymer-based additive manufacturing method and in wide use for the 3D-printing of polymer parts. When using a specially developed, highly filled metal/polymer feedstock (55%), FFF can also be applied as a shaping method for metallic green parts as an alternative to injection moulding in the MIM process.

In this paper, the specific properties of sintered 316L steel parts, printed on a tailored FFF machine, then debinded and sintered as in the conventional MIM process, are discussed in detail. An overview of the state-of-the-art of the equipment, respective processing parameters, currently achieved oversize factors; densities and other mechanical properties as well as achievable surface quality are given.


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