What does post-processing refer to in additive manufacturing?

Post-processing in additive manufacturing is defined as the treatments and modifications applied after the printing process has been completed. This stage is essential for enhancing the final part's properties, aesthetics, and overall performance. The types of post-processing techniques can include removing support structures, sanding or polishing the surface to eliminate layer lines, applying coatings for increased durability, or even heat treatments to improve mechanical properties.

Each of these methods aims to address any limitations inherent in the additive manufacturing process itself, such as ensuring dimensional accuracy, achieving a desired surface finish, or modifying the material properties to meet specific requirements.

While the other choices mention relevant aspects associated with the overall additive manufacturing process, they deal with different stages that do not specifically involve post-processing. Treatments before printing focus on preparation and design adjustments, while modifications during printing pertain to ensuring that the print achieves optimal results as it prints.