The International Association of Classification Societies (IACS) has released a new recommendation outlining a standardised framework for integrating Additive Manufacturing (AM), or 3D printing, into marine and offshore applications.
AM offers an alternative to traditional manufacturing processes, offering greater design flexibility and the potential for on-demand production. The new recommendation, Rec.186, provides guidance on the qualification, approval, and certification of additively manufactured metallic parts.
The publication covers various aspects of the AM process, including part design, feedstock selection, manufacturing methods, post-processing, and inspection. The framework aligns with international standards and integrates with existing IACS Unified Requirements, particularly UR W for materials and welding.
IACS says the framework will support the safe adoption of AM for safety-critical marine components and that it will continue working with industry stakeholders to expand its use in shipbuilding and offshore engineering.
“Additive manufacturing, or 3D printing, is increasingly becoming a valuable tool for the marine sector, offering a flexible, speedy and customisable solution for environments where the consequences for safety, sustainability or operational uptime can otherwise be significant,” said Alexandre Astruc, Chair of IACS’ Expert Group on Materials & Welding.
“While its potential for rapid production is notable, its true strength lies in its ability to provide innovative, on-demand solutions tailored to complex maritime challenges. In developing Rec 186, IACS is seeking to safeguard the benefits offered by additive manufacturing by ensuring it is underpinned by a standardised framework for verification and certification that gives confidence to all parties.”
