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ASC, CSIRO collaboration to pioneer additive manufacturing for subs

Australia’s dedicated submarine sustainment organisation, ASC, is collaborating with Australia’s national science agency, CSIRO, and DMTC Limited, to pioneer the use of additive manufacturing for the repair of Collins Class submarines.

Australia’s dedicated submarine sustainment organisation, ASC, is collaborating with Australia’s national science agency, CSIRO, and DMTC Limited, to pioneer the use of additive manufacturing for the repair of Collins Class submarines.

The partners have joined forces to further develop ‘cold spray’ technology for repairing damaged metal surfaces, to enable the future in-situ repair of submarine components.

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Successful development of the cold spray technique for this specific maritime application will allow Australian submarines to remain at sea for longer, without the need to dock for lengthy repairs.

Cold spray is an additive manufacturing and repair method that uses a stream of supersonic gas to accelerate metal powder particles at a surface, building up a dense deposit.

ASC chief executive Stuart Whiley said, "It’s vitally important for ASC to be on the cutting edge of submarine sustainment innovation, to continually improve Australia’s submarine availability to the Royal Australian Navy service."

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The innovative process occurs below the melting temperatures of the metals involved, which avoids damaging the structural integrity of the components and surrounding area.

"The use of additive manufacturing for the repair of critical submarine components, including the pressure hull, will mean faster, less disruptive repairs for our front line Collins Class submarine fleet," Whiley added. 

CSIRO team leader Dr Peter King added, "CSIRO and ASC have been working together for a number of years, exploring ways to use cold spray of nickel to repair corrosion."

The two-year project seeks to deliver breakthroughs in submarine repair and cost-of-ownership reductions for the Royal Australian Navy, through expert contributions from industrial and research partners. 

"CSIRO has spearheaded the adoption of cold spray by Australian industry since first introducing the technology 18 years ago. We have developed unique cold spray-based solutions for the printing industry, aerospace, rail and for combating marine biofouling," Dr King explained. 

"The team is focused on working closely with local companies to develop new intellectual property for Australia and to deliver on national missions such as building sovereign capability."

DMTC CEO Dr Mark Hodge, welcomed the commencement of the new project, saying, "This project builds on the relationship between ASC and CSIRO since 2015 but will also leverage DMTC’s long history in developing cold spray as a repair technology for defence applications.

"Our work to date has mainly focused on the aerospace domain, but we are now looking to apply that to submarines and other defence applications."

The project will see ASC engineers working with CSIRO’s Lab22 research facility for additive manufacturing of metals in Melbourne to develop portable equipment for in-situ repair in the confines of a submarine.

Once successfully proven and certified, ASC will be licensed to use cold spray to support its work as Australia’s submarine sustainment organisation, primarily in supporting the Collins Class submarine fleet.

DMTC Limited (formerly the Defence Materials Technology Centre) develops and delivers technology and manufacturing solutions that strengthen Australian industrial capacity in areas identified as sovereign defence priorities.

DMTC outcomes are achieved through collaborative partnerships between Defence, government research agencies, universities and industrial partners.

ASC, CSIRO collaboration to pioneer additive manufacturing for subs
ASC-Cold-Spray-Manufacturing.jpg
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