Method of forming metal

Details Method of forming metal Method of forming metal

B - Operations, Transporting

21

D

114/25, 113/68

B21D 26/08 (2006.01) B21D 51/18 (2006.01) B63B 9/06 (2006.01)

Patent

CA 1311159

- 14 - ABSTRACT A method and apparatus for the high energy rate forming of metal. A die/mould (11) of cage-like construction and of the shape to which the sheet metal is to be formed is lined with sheet metal (18) and filled with a liquid medium. A number of explosive charges are then placed at strategic locations within the liquid medium and detonated causing deformation of the sheet metal (18) and taking up by the metal of the shape defined by the die/mould (11). The die/mould (11) is normally buried in a pit and supported therein during the deformation process. The cage-like structure of the die/mould enables air trapped between the sheet metal and the die to escape during the deformation process. A method of forming boat hulls using this method is also disclosed.

583364

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