Manufacturing method of conical metal boxes and tool for carrying out this method.

摘要

Method of drawing by cylindrical punch and frustoconical die. According to the invention, the blank (12a) is subjected to one (or several) drawing operations between a die (31) having a frustoconical internal wall and a cylindrical punch (30), the pressure of the clamping means (32) being moderated in order that the metal, while being deformed, matches the shape of the die. Application to the manufacture of can bodies made of "double reduction" sheet. <IMAGE>