Weapon Wednesday – At Sea Repairs with Supersonic Metallic Spray

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  • The Australian Navy is researching cold spray, a form of additive manufacturing, to repair submarines.
  • The tech blasts surfaces with tiny bits of metal at high speed, binding it to a surface.
  • The process could keep submarines out of shipyards and at sea where they’re needed.

The Royal Australian Navy is investigating so-called “cold spray” technology to repair its six Collins-class attack submarines (pictured above). The tech would allow the service to repair parts on submarines, even the pressure hull, while still at sea. A form of additive manufacturing, cold spray could revolutionize shipboard repairs aboard subs worldwide.

Cold spray involves blasting a damaged metal surface with a supersonic gas filled with metallic particles. The particles fuse with whatever surface it’s sprayed upon, forming a buildup of solid metal. The technique takes its name from the fact that, unlike repairs done with welding, the fusing is done far below the melting point. Here’s a video demonstrating cold spray released by ASC, the Australian government organization that builds and maintains the country’s submarine fleet.

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About the Common Constitutionalist

Brent, aka The Common Constitutionalist, is a Constitutional Conservative, and advocates for first principles, founders original intent and enemy of progressives. He is former Navy, Martial Arts expert. As well as publisher of the Common Constitutionalist blog, he also is a contributing writer for Political Outcast, Godfather Politics, Minute Men News (Liberty Alliance), Freedom Outpost, the Daily Caller, Vision To America and Free Republic. He also writes an exclusive weekly column for World Net Daily (WND).