Hochschule Trier commissions VIGA system for climate-neutral metal powder production

Hochschule Trier has successfully commissioned a Vacuum Inert Gas Atomization (VIGA) system for producing metal powders from scrap material, aiming to create a climate-neutral feedstock for additive manufacturing. The university’s facility, described as unique in the Trier region, uses recycled metal scrap as input rather than virgin ingots, reducing the carbon footprint of powder production. The VIGA process operates under vacuum and inert gas to melt and atomize scrap into fine spherical powders suitable for laser powder bed fusion (LPBF) and other metal AM processes. This marks a milestone in the university’s research into sustainable powder metallurgy, though specific powder materials, production capacity, and timelines for commercial availability were not disclosed.

This development sits at the intersection of two critical industry trends: the push for localized, low-carbon metal powder supply chains and the growing demand for circular economy solutions in AM. Metal powder production is energy-intensive and traditionally relies on virgin alloys, making it a significant contributor to AM’s overall carbon footprint. Hochschule Trier’s VIGA approach directly addresses this by enabling scrap-to-powder recycling, which could lower both cost and environmental impact for European AM users. The initiative aligns with the broader European regulatory push for sustainable manufacturing under the EU’s Green Deal and the Critical Raw Materials Act, which incentivizes domestic recycling infrastructure. However, the project remains at the research stage; scaling from a university pilot to industrial-grade production will require validation of powder quality, consistency, and cost parity with conventional gas-atomized powders.

For the AM industry, this is a proof-of-concept that scrap-based metal powder is technically feasible, but the practical path to commercialization remains long. The university must now demonstrate that powders produced via this VIGA route meet ASTM/ISO standards for LPBF, particularly for demanding applications in aerospace and medical implants where trace element control is critical. If successful, the model could be replicated by other research institutions or specialized powder producers looking to differentiate on sustainability. For now, the news is a signal of progress in circular AM materials, not a market-ready solution.