Sustainability is becoming a central driver in the evolution of additive manufacturing (AM), with increasing emphasis on reducing environmental impact across materials sourcing, production processes, and end-of-life management. This workshop focuses on the integration of recycled powders, bio-based and biodegradable filaments, low-carbon alloys, and circular production strategies to enable greener additive manufacturing ecosystems.

The sub-workshop explores sustainable innovations across metal powder bed fusion (PBF), directed energy deposition (DED), binder jetting, and polymer extrusion technologies. Key topics include lifecycle assessment (LCA), powder recyclability and degradation, material traceability, energy consumption reduction, and closed-loop material systems. Presentations will examine scientific advances in recycled feedstock qualification, bio-based polymer development, and design-for-circularity principles.

Academic contributions will highlight material performance, durability, and environmental benchmarking, while industry speakers will provide real-world insights into sustainable supply chains, certification of recycled materials, and carbon footprint reduction strategies. Special attention will be given to regulatory drivers, ESG requirements, and the economic case for sustainable AM adoption.

The workshop aims to provide a comprehensive understanding of how additive manufacturing can contribute to climate goals, resource efficiency, and circular economy models while maintaining industrial performance and scalability.

Extended Key Takeaways & Outputs

• Comparative analysis of recycled, bio-based, and low-carbon AM materials

• Identification of technical and regulatory barriers to sustainable material adoption

• Strategies for improving powder reuse, material traceability, and lifecycle performance

• R&D priorities for green materials and energy-efficient AM processes

• Roadmap for implementing circular economy principles in additive manufacturing