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Austal 3D printed maritime crane receives verification from DNV GL

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A maritime crane developed and additively manufactured by AML3D in conjunction with Austal Australia, has received formal verification from DNV, an independent expert in risk management and quality assurance. AML3D produced an aluminum personnel recovery 3D printed maritime crane (davit), intended for naval applications, with its proprietary WAM® additive manufacturing technology, on behalf of Austal.

As part of the qualification process, a three-meter-long personnel recovery davit was designed and produced to meet international and naval specifications. The assembly was then function tested to more than twice its design working load. Following the successful load test, non-destructive and destructive testing, the results were reviewed by all parties before the final verification statement was issued.

The printed davit was subjected to extensive testing by the John de Laeter Centre and the Curtin Corrosion Centre at Curtin University. Researchers utilized advanced microanalysis instrumentation to generate high-quality microstructural information and images. In addition, the mechanical and corrosion characteristics were assessed and compared against established marine grade metals.

3D printed maritime crane receives verification from industry body
From Left: Austal Technology Project Manager, Jeffrey Poon, DNV Representative Jude Stanislaus, AML3D Chief Executive Officer Andy Sales with a sample of the davit produced during the additive manufacturing project. (image: Austal Australia)

“We’re proud to have been able to partner with Austal and demonstrate the advantages of our proprietary Wire Additive Manufacturing capabilities in the creation of the Davit Arm,” said AML3D Chief Executive Officer, Andy Sales. “Additionally, we are equally as excited to see this WAM® printed component receive an official verification statement by DNV. This now offers a verification pathway for a much wider range of components that can now follow a similar validation process.

3D printed maritime crane receives verification from industry body
The davit produced through additive manufacturing was comprehensively function tested to twice its design load, by Austal (image: Austal Australia)

This is a fantastic achievement by the AML3D team, Austal and our other partners in this project. Working with Austal’s vision for implementing Additive manufacturing has been a further endorsement for our own business model and we’re excited for the future.”

Austal Chief Digital Officer, Andrew Malcolm said the successful collaboration with AML3D and Curtin University on the additive manufacturing project highlighted the many opportunities to pursue emerging technologies with the Australian industry.

“Austal Australia has been working with AML3D since 2019 on the development of hybrid manufacturing approaches that put robotics side by side with our highly skilled tradesmen and women to fabricate large complex structures,” Mr. Malcolm said.

“Wire Arc Additive Manufacturing, or WAAM, has the potential to enable a productivity step change in shipbuilding, able to 3D print marine grade metal structures at a scale well beyond other commercially available metal 3D printing technologies.

“This DNV verification statement for the AM-produced personnel recovery davit shows that these additive manufacturing processes can meet our specification(s), which have been developed to fulfill the requirements to fit components to naval vessels, and we are certainly encouraged by the verification to pursue future opportunities” Mr. Malcolm added.

AML3D sees this initial, successful collaboration with Austal as a conduit to utilize their WAM® technology across a wide range of marine applications.  Interest in the additive manufacturing space has grown strongly in the sector due to inherently low production runs and the specialized nature of many marine parts.

It is expected that additional ‘proof of concept’ and accreditation processes will be completed with the wider industry during CY2021 that have the potential to result in a significant order pipeline for AML3D.

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