Integration of an Atmospheric Plasma Torch into a 3D Printer

The integration of an atmospheric plasma torch into an FDM printer represents a key capability for enhancing the performance of printed parts by acting directly on the filament surface or on the part during fabrication. This approach—already explored to combine atmospheric plasma technologies with additive manufacturing processes—makes it possible to improve interlayer adhesion, modify surface energy, and locally functionalize the material without disrupting the thermal behavior of the FDM process. Mastering these technologies requires a deep understanding of plasma–material interactions, as demonstrated in other projects using plasma torches for surface treatments or material modification. Integrating a plasma torch into an FDM printer also requires expertise in instrumentation, process synchronization, and operational safety, in order to ensure effective, reproducible treatment that remains compatible with the constraints of thermoplastic material deposition.