IACS Recommendation: 3D Printing for Marine and Offshore Applications

the AM process, including part design, feedstock selection, AM processes, post-processing, and inspection/testing. By incorporating recognized international standards such as ISO/ASTM 52900 and AWS D20.1, it aligns AM technology with existing Unified Requirements, particularly UR W for materials and welding, ensuring equivalent reliability and safety.

To facilitate the safe and effective adoption of AM in the marine sector, the recommendation outlines the following key areas:

• Scope of AM Process:The recommendation covers Powder Bed Fusion (PBF), Directed Energy Deposition (DED), and Binder Jetting (BJT), with detailed process-specific parameters.
• Criticality Levels and Testing:Introduces tiered testing levels (AM Levels 1-3) for class and certified items, enabling