Patent ID: 11867491
Assignee: nan
Field: Other special machines (Mechanical engineering)
Classification: CPC F | IPC F

Claim 6:
7. The method according to claim 1, wherein forming the tubular sleeve comprises:
(i) inserting a tool insert assembly inside a cylindrical tube, the tool insert assembly having a portion with a shape corresponding to an internal shape of the cartridge casing and formed of at least two parts including a shaping insert and a support pin that slidably inserts into a central passage of the shaping insert, the shaping insert comprising a radially compressible body portion that allows the shaping insert to move elastically radially inwardly when the support pin is removed,
(ii) compressing the tubular sleeve to deform it against the tool insert assembly,
(iii) withdrawing the support pin and subsequently withdrawing the shaping insert.