📄 New Publication: Advancing Tungsten Additive Manufacturing with PBF-EB

We’re excited to share that our CEO, William Sjöström, has published a new open-access publication in Progress in Additive Manufacturing, presenting a novel approach to processing chemically reduced tungsten powder using Electron Beam Powder Bed Fusion (PBF-EB).

🔗 Read the full article here

💡 Why This Matters

Tungsten’s exceptional properties—such as high density and melting point—make it ideal for applications like radiation shielding and high-temperature components. However, its extreme melting point (>3400 °C) and poor powder flowability have made it notoriously difficult and expensive to process via additive manufacturing.

This study introduces a dual-gradient parameter strategy using both line and spot melting, enabling the successful production of fully dense parts (up to 99.9%) from chemically reduced tungsten powder—an economical alternative to atomized powders.

🔍 Key Contributions:

• Developed a dual-gradient process development strategy for PBF-EB using line and spot melting
• Mapped porosity and swelling transitions using backscatter electron data
• Demonstrated that spot melting is more scalable due to reduced warping
• Published complementary scripts for reproducibility and further research

This work is the result of a strong collaboration between Mid Sweden University, Freemelt, Sandvik, Wolfram, and UPC Barcelona.