Method of producing a light-weight structure by expansion of a metallic reservoir inside a reinforced corrugated tube.

摘要

The present invention describes a method of producing high-pressure tanks having a light unit weight and a reinforced corrugated metal casing in which: a corrugated tube (32) is reinforced circumferentially (33), a metal tank (31) is inserted inside the reinforced tube, the reinforced-tube tank assembly, with the exception of the openings (35, 36), is reinforced longitudinally (34), the material of the metal tank (31) is made to yield by plastic deformation under the effect of an internal pressure in order to obtain a corrugation of the cylindrical part (37) of the metal tank (31).