초록 ▼

A penetrating projectile of a caliber less than or equal to 40 mm includes a core (1) provided with a front point (2). The core is made of a hard and/or high density metal or metallic alloy and has a portion (4) to the rear of the point that is surrounded by a ductile metal guide (3) having a substa

A penetrating projectile of a caliber less than or equal to 40 mm includes a core (1) provided with a front point (2). The core is made of a hard and/or high density metal or metallic alloy and has a portion (4) to the rear of the point that is surrounded by a ductile metal guide (3) having a substantially cylindrical wall. The portion of the core which is surrounded by the guide is provided with projections (5) and depressions (6), and the guide is crimped onto said portion of the core by electromagnetic forming such that the internal surface of the guide is fixed axially and rotationally to the portion (4) of the core (1) by means of the projections and depressions and the external surface of the guide reproduces the profile of the projections and depressions on the core. The projectile can be produced at low cost and has excellent ballistic properties. See FIG. 1.

대표청구항 ▼

A penetrating projectile of a caliber no more than 40 mm, the projectile including a core (1) having a front point (2), the core being composed of a hard and high density metallic material and having a portion (4) to the rear of the point surrounded by a guide (3) having a generally cylindrical wall

A penetrating projectile of a caliber no more than 40 mm, the projectile including a core (1) having a front point (2), the core being composed of a hard and high density metallic material and having a portion (4) to the rear of the point surrounded by a guide (3) having a generally cylindrical wall of ductile metal, the metallic material of the core being harder than the metal of the guide and the portion of the core which is surrounded by the guide being provided with projections (5) and depressions (6) and the guide being crimped onto said portion of the core by radial compression such that the internal surface of the guide is fixed axially and rotationally to said portion of the core by means of the projections and depressions, wherein the improvement comprises: the guide (3) is crimped onto said portion (4) of the core (1) by electromagnetic forming and the projections and depressions on said portion (4) of the core comprise undulations (5,6), the internal surface of the guide (3) in contact with said portion of the core assuming the profile of the undulations (5,6), and the external surface of the guide (3) reproducing the profile of the undulations (5,6).