A multi-part projectile and method of making

Details A multi-part projectile and method of making A multi-part projectile and method of making

F - Mech Eng,Light,Heat,Weapons

42

B

F42B 12/02 (2006.01) F42B 12/74 (2006.01)

Patent

CA 2368137

A method for the manufacture of a projectile (24) for small bore weapons ammunition comprising the steps of producing a plurality of compacts (25) from a mixture of a heavy metal powder and a light metal powder at room temperature, and without further treatment of the compacts, introducing the compacts into a metal jacket (52) one at a time, including pressing each compact into the jacket with a pressure sufficient to ensure substantially complete filling of a respective portion of the into the jacket. The compacts fill less that the entire volume of the jacket, leaving a portion of the jacket void of compacts. Prior to the pressing of the last of the compacts introduced into the jacket, a disc (48) having an outer diameter substantially equal to the internal diameter of said jacket adjacent to the open end thereof is introduced into the jacket. Following pressing the last introduced compact and the separator dics, that portion of the jacket adjacent its open end is infolded toward the longitudinal centerline of the jacket to at least substantially close the open end of the jacket. A unique projectile and a round of ammunition formed with the projectile are disclosed.

Cette invention concerne la fabrication d'un projectile pour munitions d'armes de petit calibre qui consiste à fabriquer une pluralité d'éléments compacts à partir d'un mélange de poudre de métal lourd et de poudre de métal léger à la température ambiante et, sans autre traitement, à introduire un à un ces éléments compacts dans une chemise de métal, en comprimant chaque élément dans la chemise sous une pression suffisante pour garantir un remplissage sensiblement complet de la partie correspondante de la chemise par chaque élément avant introduction de l'élément compact suivant. Les éléments compacts remplissent un volume inférieur au volume total de la chemise, dont une partie reste ainsi vide. Avant de comprimer les derniers éléments compacts introduits dans la chemise, on place contre la partie ouverte de cette dernière un disque dont le diamètre extérieur est sensiblement égal au diamètre interne de la dite chemise. Après avoir comprimé les derniers éléments compacts et les disques de séparation, on déplie la partie de la chemise située contre l'extrémité ouverte vers l'axe longitudinal central de la chemise de manière à fermer sensiblement cette extrémité ouverte. L'invention concerne un projectile unique en son genre et sa munition.

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