AM User Club Virtual Meeting 2025

We are excited to announce our upcoming User Club meeting, exclusively designed for members of the Additive Manufacturing sector.

Schedule

3:00 PM – Welcome

3:20 – How Carbon-Nanotube Additions Affect the Powder Cohesion Index Across CNT Loadings and Implications for PBF-LB Printability.

The influence of nanomaterials in copper powders is a new challenge for additive manufacturing. Adding carbon nanotubes to copper powders alters particle morphology and shifts the powder cohesion index.

By Francesco Filoscia, National Institute for Nuclear Physics (INFN), Rome Unit and Sapienza Univ. Roma, Researcher

3:45 – Achieving High-Productivity in Laser Powder Bed Fusion via Enhanced AlSi10Mg Powders

Laser-Powder Bed Fusion (L-PBF) is among the many Additive Manufacturing (AM) technologies that has found significant adoption across varied industrial sectors. Although sought out to be one of the popular AM technologies, the production rate of these systems is not suitable for mass production due to the use of a focused Gaussian heat source dispersion.

Our approach to achieving the requirement for high-productivity from the L-PBF system is by understanding the basics of the feedstock material and accompanying process parameters. In our study, we evaluated 3 different AlSi10Mg powders. A regular mono-modal powder, an enhanced mono-modal powder, and an enhanced bi-modal powder. Each powder varied by their particle size distribution (PSD), tap and apparent density and subsequent flowability characteristics. For instance, Powder1 had a wide range of PSD, Powder3 had a very tight PSD range and Powder2 had a bi-modal PSD. This directly influences the packing capabilities and flowability of the powders impacting important parameters such as spreadability and recoating time during the print. Although, process parameters were modified accordingly to meet the requirement of a high-productivity yield and equally dense part, we were able to show how an enhanced powder can push the limits productivity and yield from a regular Gaussian heat source with a low power wattage. Our study shows that we can drive up the productivity of the L-PBF process by using an enhanced powder with unique powder characteristics.

By Sabina Kumar, Lead Engineer - Additive Mfg. Center of Excellence, Eaton Research Labs

4:10 – NASA's Powder Characterization Efforts using GranuHeap and GranuFlow

In this presentation, you will discover how NASA has been using Granutools hardware to help better characterize powder flowability behavior for aerospace additive manufacturing efforts.

By Justin McElderry, Materials Engineer, NASA Marshall Space Flight Center

4:35 – TBC

5:00 – Q&A session

5:30 – End

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