METHOD OF MANUFACTURE OF SMALL ARMS CARTRIDGE CASES Russian patent published in 1998 - IPC

Abstract RU 2113309 C1

FIELD: plastic metal working. SUBSTANCE: cartridge case is produced from a rod by cutting-off a measured piece from it. A stepped cup-shaped semifinished product is made with a primer holder formed by combination of reverse and direct extrusion. Then drawing is accomplished with ironing of the wall in the expanded part of the step. After that the flange is formed. Then a complex of finishing operations is carried out. Provision is made for different variants of fulfillment of the above operations. EFFECT: facilitated procedure. 15 cl, 11 dwg

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RU 2 113 309 C1

Authors

Evdokimov A.K.

Kamajkin N.K.

Evdokimov V.A.

Dates

1998-06-20—Published

1996-03-26—Filed