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Submarines Discussion Board
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Subject: 3d printer concrete mold for molten metal hull casting
neofuturist    3/13/2007 9:27:02 AM
The high quality of wielding needed to weld together the segments of the submarine's hull is extremely expensive, and one of the primary factors that determine the overall cost of the submarine.

Could the hull be made out of 2 or more panels formed by injected metal casting, the high cost of wielding could be avoided. However with traditional methods, making the mold for the submarine hull would almost equal the cost of the traditional welding. Recently however a 3d printer that uses concrete has been developed for rapid housing construction. The machine, able to operate 24/7, would be able to make a house in a single day, at a cost far below current methods.

It is my opinion that this technology can be adapted for the construction of massive molds for hull casting, both for submarines and surface ships. Heating elements built within the mold would allow the control of the cooling process, allowing a uniform and gradual cooling to prevent hull imperfections.
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Herald1234    Bubbling and eddy cooling.   3/13/2007 9:39:01 AM
That equals a brittle and imploding hull.

Herald
 
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scuttlebut steve    cheap prefabs of the sea?   3/14/2007 6:55:58 AM
this might work if you want to make very small, slow subs with a max operating depth of 150 ft and an 8 year hull life, but not likely, even for a sub as worthless as that.
 
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