Method and apparatus for making tubular containers

Details Method and apparatus for making tubular containers Method and apparatus for making tubular containers

F - Mech Eng,Light,Heat,Weapons

42

B

86/3, 113/6

F42B 1/00 (2006.01) B21D 51/54 (2006.01) B21K 21/04 (2006.01) B21K 21/14 (2006.01)

Patent

CA 1181270

ABSTRACT OF THE DISCLOSURE A process and an apparatus for manufacturing tubular cart- ridges having one end at least substantially closed, by means of cold-working of tubular blanks, wherein a tubular blank is fed into a die snugly, enclosing said blank, the tube end to be closed resting on a retractable bottom forming tool. With the tube so positioned, a punch having an outer diameter larger than the inner diameter of the tube is lowered into the tube, which punch when moving through the tube displaces material from the entire length of the inner wall of the tube to the lower end of the tube so as to at least partially close this end of the tube.

392359

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