Metal paste deposition (MPD) is a new metallic additive manufacturing technique, which is closest in principles to the polymer-based fused deposition modeling (FDM) technique. The operational cost of MPD is lower than for the more typical laser-based metallic additive manufacturing techniques. Yet, its more recent apparition on the market means its feedstock catalogue is rather limited as of today. In this work, we studied the MPD printability of Ti–6Al–4V. This alloy is of particular interest for the additive manufacturing industry as it is the most widely used titanium alloy. Therefore, to decrease material costs, there is a drive to replace susbtractive approaches with additive approaches for this material. In this work, a paste was designed with adequate powder, solvent, and binder amounts so that it would flow and extrude with ease. As well, the paste was designed to avoid failure during sintering. Here are presented promising preliminary results regarding the density of Ti–6Al–4V parts printed by MPD.

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Metal Paste Deposition of Titanium Alloy

  • Alexandre Bily,
  • Alexandre Bois-Brochu

摘要

Metal paste deposition (MPD) is a new metallic additive manufacturing technique, which is closest in principles to the polymer-based fused deposition modeling (FDM) technique. The operational cost of MPD is lower than for the more typical laser-based metallic additive manufacturing techniques. Yet, its more recent apparition on the market means its feedstock catalogue is rather limited as of today. In this work, we studied the MPD printability of Ti–6Al–4V. This alloy is of particular interest for the additive manufacturing industry as it is the most widely used titanium alloy. Therefore, to decrease material costs, there is a drive to replace susbtractive approaches with additive approaches for this material. In this work, a paste was designed with adequate powder, solvent, and binder amounts so that it would flow and extrude with ease. As well, the paste was designed to avoid failure during sintering. Here are presented promising preliminary results regarding the density of Ti–6Al–4V parts printed by MPD.