FORMUNGSVERFAHREN FUER METALLE.

摘要

PCT No. PCT/AU88/00113 Sec. 371 Date Dec. 8, 1989 Sec. 102(e) Date Dec. 8, 1989 PCT Filed Dec. 15, 1988 PCT Pub. No. WO88/07899 PCT Pub. Date Oct. 20, 1988.A method and apparatus for the high energy rate forming of metal. A mold (11) of cage-like construction and of the shape to which the sheet metal is to be formed is lined with sheet metal and 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 and taking up by the metal of the shape defined by the mold. The mold is normally buried in a pit and supported therein during the deformation process. The cage-like structure of the mold enables air trapped between the sheet metal and the mold to escape during the deformation process. A method of forming boat hulls using this method is also disclosed.