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Keppel Receives DNV Verification for World’s Largest 3D Printed Edge Fitting – Digital Ship

Keppel Technology & Innovation (KTI) has received from DNV a verification certificate for a 3D printed Panama Chock type (SWL150Ton) mounted on a bridge. The component, which is intended for high-class marine applications, is the world’s largest 3D printed on-board fitting.

Panama Chocks are great towing and mooring accessories on board ships, traditionally made by casting, and are welded to a ship as a supporting hull structure. This component was manufactured by KTI’s partner AML3D (ASX: AL3) using their patented Additive Manufacturing Wire (WAM) process, which used a medium strength structural steel wire feedstock. ER70S-6.

Verification by DNV follows extensive research, production and testing by KTI with Keppel Offshore & Marine (Keppel O&M) end users and AML3D technology partners and confirms that the component has met all testing requirements main in the specification of KTI project materials with satisfactory results.

Additive Manufacturing (AM) – the industrial equivalent of 3D printing – is an emerging technology that uses data from 3D models to manufacture parts, allowing, among other benefits, significant time savings. Wire Arc Additive Manufacturing, or WAAM, has the potential to enable a shift in productivity in shipbuilding and is capable of 3D printing marine grade metal structures at a scale far greater than other metal 3D printing technologies available in the world. trade.

“KTI has been working on this project with Keppel O&M, DNV and AML3D since 2019, and we are proud to get this approval. Keppel is transforming the way it operates technology and KTI supports it by working with Keppel business units to innovate and create value. This is in line with Keppel’s Vision 2030, which includes the use of cutting-edge technologies to drive growth, ”said François van Raemdonck, CEO of KTI.

Aziz Merchant, Executive Director of Keppel Marine & Deepwater Technology, the technology arm of Keppel O&M, said: “Keppel O&M is constantly exploring new technologies to stay ahead of the industry and additive manufacturing has the potential to increase efficiency of shipyard operations. The 3D printing of the Panama Chock shows that large components can be made available with shorter delivery times and with equal standards of quality and performance. We are encouraged by the verification and look forward to exploring how AM can be implemented on a larger scale. “

As part of the qualification process, a 1450 kg Panama Chock was designed and produced to meet international standards and KTI project specific material specifications. The yield strength of the material was twice that of the original cast material and was produced with acceptable internal strength which was confirmed by various methods of non-destructive testing and evaluation.

Throughout the production and testing processes, there has been a close and collaborative engagement between DNV, KTI and AML3D. Factors such as functional specifications, safety, test procedures and acceptance criteria have all been subjected to careful scrutiny by experts.


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