From the outer shell and the way to do the same thing

摘要

2. The method of assembling the cartridge case in the metal member includes providing the metal member so that the cartridge case forms a cartridge case receiving hole in the metal member, and the bullet hole is defined by the annular shell part around the bullet hole. The shell is then forced to enter the shell through the hole diameter in the pulse direction of the cartridge case, which makes the shell contact with the shell part of the cartridge case, so that the shell part of the cartridge case fails and deforms in the pulse direction of the cartridge case, forming the annular shell of the shell part.It is projected into the pulse direction and contacts with the external surface of the cartridge case to ensure the safety of the cartridge case in the bullet hole with an interference regulation relationship.