Today, Lloyd’s Register launches its goal-based additive manufacturing (AM) guidance notes to industry, giving operators and manufacturers in the energy and marine industries confidence in metallic equipment and components produced using AM.
AM is being called the ‘next industrial revolution’ in the manufacturing mix. The introduction of Lloyd’s Register’s certification guidelines for metallic AM parts represents a move by the leading integrity, compliance and specialist risk consulting services group, together with engineering research and technology firm TWI, to help industry harness the technology.
Once deployed, AM will enable companies to more efficiently and cost-effectively manufacture complex components and equipment.
Chris Chung, Head of Strategic Research at Lloyd’s Register Energy, says: “As the Lloyd’s Register Energy Technology Radar survey suggests, AM will have a major impact in the oil and gas industry in the next five years. That is why last year, together with TWI and a number of industry partners, we brought together research and development efforts with real-world AM practices.
“Our new certification guidelines, launched today to industry, are already being used by companies in this joint industry project to gain early certification of AM components.”
A route to commercialisation
The guidance notes are an important step towards AM commercialisation and designed to mitigate the industry scepticism that often meets new technology in its early years. As the technology is complex, dedicated guidelines are essential to ensure the quality and repeatability of AM parts.
Lloyd’s Register’s certification framework for AM metallic components provides a step-by-step approach to provide the necessary level of confidence and acts as a stabilising force for quality and safety. By enabling widespread adoption of the technology, the guidelines will support the long-term sustainability of the energy and marine industries.
Roger Fairclough, Principal Project Leader at TWI says: “TWI has been involved in the research and development of additive manufacturing for over 15 years. It is increasingly obvious that the technology is now at a stage where its adoption in general engineering is technically possible and commercially viable.”
Fairclough highlights: “To enable full industrial take-up of the technology, it is essential that the certification and validation procedures used for conventional manufacturing processes are extended and, if necessary, modified to suit additive manufacturing. This joint industry project between Lloyd’s Register and TWI will bridge this gap for the project participants and enable them to bring AM parts quickly and safely into the industrial marketplace.”
Increasing efficiency and competitiveness
In the oil and gas sector, cost savings and efficiency gains are crucial to restore competitiveness and increase investor confidence. The use of AM components would expedite this, and the introduction of AM certification will qualify competency and improve the safety of components and equipment used to replace worn or decommissioned parts.
In the marine industry too there is a move to assess this new technology. Commenting on the implications of AM, Luis Benito, Marketing Director, Lloyd’s Register Marine: “AM will have implications for global industry, trade and shipping as well as ship operations. It is important that we can help drive best practice as AM is adopted around the world.”
From pharmaceuticals to aerospace, several industries have already adopted AM due to its ability to create complex parts with a high level of precision with reduced material usage and weight.
Rolls-Royce, for example, has been exploring AM technology for component manufacture and repair for over half a decade.
“We believe AM will increasingly have a major part to play in how manufacturers and designers tackle challenging component design, prototyping and manufacture,” says Derek Jones from the Research and Technology programme within Rolls-Royce’s Nuclear business. “Shortening the manufacturing time by almost a third gives us more time to design, which is always a benefit.”
“As a leading developer of AM, Rolls-Royce will play an active role in this joint industry project with Lloyd’s Register, TWI and other leading industry partners. We recognise that AM has the potential to deliver real benefits across many energy applications in the future, including nuclear. The consistent approach and standards for component certification provided by this project will be a significant step forward in proving to our customer the industrial viability of components made using the latest AM techniques.”
Combining a component’s various parts into one printed component is achievable and can lead to savings in assembly and maintenance. The industry is also investigating hybrid production that incorporates AM technology with a view to reducing its outlay on high-value material.
Chung states: “We believe operators working in offshore and onshore can learn a lot from other industries particularly in the fast manufacture and replacement of equipment and components used in standard and critical applications.”
For these operators, the Lloyd’s Register certification framework provides confidence in the performance of any certified AM part or component.
TWI is a world-leading research and technology organisation, with a staff of more than 900 providing engineering solutions around the world. Services include generic research, contract R&D, technical information, consultancy, standards drafting, training and qualification. TWI offers a single, impartial source of service for joining engineering materials.
TWI has been involved in the development and application of additive manufacture for many years, working with clients from sectors including aerospace, defence and medical.
About additive manufacturing
Unlike most conventional manufacturing techniques, additive manufacturing (AM), commonly referred to as 3D printing, forms objects by building material layer by layer, rather than forming the shape by machining. Paired with computer-aided design (CAD) software, this technique affords the creation of new and improved components to exacting material specifications. The designer is no longer limited by the constraints of conventional machining – new and redesigned components can be manufactured with almost complete freedom.
AM offers faster lead times than traditional manufacturing methods. For example, in Formula One motor racing, engineers use AM to manufacture parts in a highly reactive way. They can now analyse a car’s performance while it goes around the circuit and have a new part generated before it finishes the race.
Recently, Maersk and other marine organisations have begun trials with printing replacement parts on-board vessels – removing the intermediate steps in the supply chain and ensuring equipment downtime caused by part failure is dramatically reduced. AM’s unique techniques and technologies open up new ground for innovation and offer a range of logistical, economic and technical advantages.
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