EP1498685A1 - Warhead with projectile forming charge - Google Patents

Abstract

A load forming a projectile, comprises a metal tube (7). Its (7) axis of symmetry (9) lies in the principal direction of the projectile. A shaped explosive charge (10) surrounds the metal tube. Detonation of the charge sets up a wave front (12). This compacts the metal tube from its rear to its front. It also accelerates it in the direction of the projectile.

Description

The invention relates to a warhead with an ignition device and a projectile-forming Charge.

Such warheads have long been known and are for example in artillery ammunition, Rockets, but also in mines. This is the projectile-forming charge usually from a flat cone charge, i. a usually dammed explosive charge with frontal cavity seen in the main direction of action, in which a cone-shaped Insert of e.g. Copper or soft iron is inserted. After ignition of the explosive causes the detonation wave deformation of the insert, so that a projectile results, which stabilized by a corresponding rear widening in his flight becomes.

It has proved to be disadvantageous in the known warheads that the projectile-forming Although charges a high armor-piercing effect in terms of their Durchdringungsvermögens own, but that in contrast to conventional KE projectiles the Generation of secondary splinters, which should make the tank crew disabled, relatively low and therefore insufficient.

The invention is based on the object, a warhead of the type mentioned specify, with the projectile-forming charge, a projectile by explosive deformation is formed, which has a secondary performance in the target, not only larger is comparable to that of comparable projectile-forming charges KE ammunition.

This object is achieved by the features of claim 1. Further, Particularly advantageous embodiments of the invention disclose the dependent claims.

The invention is based essentially on the idea that the projectile not by the Effect of the detonation wave on a flat cone insert, but on a metal tube, preferably of steel, tungsten, tantalum or copper, to produce its axis of symmetry is arranged in the main direction of action of the projectile to be generated.

The metal tube is at least in some areas of a dammed explosive charge surrounded so that the detonation wave after ignition of the explosive charge on the Metal tube acts that this with respect to the main direction of action from back to front compacted into a projectile and accelerated in the said direction.

During the compaction of the metal tube essentially by the orthogonal Component of the detonation wave is caused, the acceleration of the resulting occurs Projectiles to a high speed essentially by the axial component the detonation wave, which is mainly due to the transition region between the already compacted and the not yet compacted pipe section acts.

It has proven to be advantageous if the metal tube inside with a liner tube lesser density, preferably of aluminum or magnesium, is lined. By using a lower density substance within the tube is achieved that the obstacle to be penetrated is quasi "punched out" so that less total Energy is required for the drilling work and more energy for the acceleration the resulting particles are available (larger secondary effect).

In a further advantageous embodiment of the invention it is provided that the Cavity of the metal tube with a powder, e.g. made of aluminum particles, filled in, the grain size of the powder should be between 0.3 mm and 5 mm. By using of such a powder is achieved that by the variation of the bulk density of the Kompaktierungsgrad is adjustable.

The warhead according to the invention can preferably be used in multi-purpose projectiles become. All you need to do this is to block the explosive charge as a splinter shell be educated. The explosive placed between the metal tube and the splinter shell then causes a much greater explosive effect than the comparable, with a flat cone insert provided multi-purpose projectiles.

To obstruct the projectile generated by explosive deformation through the warhead casing to avoid, this shows, seen in the main direction of the projectile, a smaller wall thickness than in the remaining area or alternatively has a Orifice whose diameter is at least the diameter of the after blast forming corresponds to the resulting projectile.

Fig.1 den Längsschnitt eines als Mehrzweckgeschoß ausgebildeten erfindungsgemäßen Gefechtskopfes mit einer projektilbildenden Einlage, wobei das Metallrohr ein zusätzliches Einlagenrohr umschließt;

Fig.2 einen vergrößerten Ausschnitt des in Fig.1 dargestellten Gefechtskopfes, bei dem nur die projektilbildende Ladung kurz nach der Zündung dargestellt ist;

Fig.3 eine Fig.2 entsprechende Ansicht, bei welcher die projektilbildende Ladung ein Metallrohr ohne Einlagenrohr umfaßt und

Fig.4 eine Fig.3 entsprechende Ansicht, bei welcher sich in dem Hohlraum des Metallrohres eine körnige Substanz befindet.

Further details and advantages of the invention will become apparent from the following with reference to figures explained embodiments. Show it:

1 shows the longitudinal section of a multi-purpose projectile according to the invention warhead with a projectile-forming insert, the metal tube enclosing an additional liner tube;

FIG. 2 shows an enlarged detail of the warhead shown in FIG. 1, in which only the projectile-forming charge is shown shortly after ignition;

3 is a view corresponding to Figure 2, in which the projectile-forming charge includes a metal tube without liner tube and

A view corresponding to Figure 3, in which there is a granular substance in the cavity of the metal tube.

In Fig. 1, 1 denotes a stabilizer stabilized multi-purpose projectile, which rear side a hinged tail 2 and the front has a projectile body 3. Of the Projectile body 3 comprises a projectile envelope 4 designed as a fragment envelope.

In the projectile casing 4 is located at the rear of an ignition device 5, to which in Direction of the axis of symmetry 6 of the projectile 1 on the front side a metal tube 7 made of steel with a deposit tube 8 made of aluminum connects. In this case, the axis of symmetry fall 6 of the projectile 1 and the symmetry axis 9 of the metal tube 7 together. The ignition device 5 and the metal tube 7 are rotationally symmetrical of an explosive charge 10, consisting of a plastic-bound explosive, surrounded. Besides that is between the ignition device 5 and the metal tube 7 a detonation shaft 18 is arranged (Fig.2).

The following is the process that leads to the formation of a projectile during blast forming leads, explained with reference to FIGS. 1 and 2.

The multi-purpose projectile 1 is in the immediate vicinity of a to be combated armored target, e.g. by means of a spacer igniter, not shown, the Igniter 5 is activated, which in turn ignites the explosive charge 10. This creates highly stressed gases 11, which the metal tube 7 and the deposit tube therein 8 compact progressively from back to front. This ensures the detonation shaft 18 by deflection of the detonation wavefront for a symmetrical Compaction.

The Detonationswellenfront marked 12 acts axially on the stepped Transition region 13 between the already compacted tube portion 14 and the still not compacted tube portion 15, so that the forming projectile simultaneously in Direction of the symmetry axes 6 and 9 is accelerated. This creates a relative long projectile of high speed and thus high kinetic energy, which the armored target and has an extremely large secondary performance.

The likewise compacted liner tube causes above all a density gradient in the Penetrator and leads to an increase in the secondary effect.

Simultaneously with the formation of the projectile and the splinter shell 4 of the projectile 1 destroys and causes a splinter rain in the vicinity of the target to be combated.

As Figure 3 is removable, can be dispensed with the liner tube. This one has The result is that a homogeneous penetrator is formed.

When using a metal tube, wherein the cavity 16 with a granular material 17 is filled (Fig.4), z. B. with aluminum particles of grain size 0.3 to 5 mm, is achieved that by varying the bulk density of Kompaktierungsgrad is adjustable.

Of course, the invention is not limited to the embodiments described above limited. Thus, the projectile casing front thin-walled than the rest Be formed area of the projectile body or remain open there, so that the accelerated projectile exits through the projectile shell as unhindered as possible.

The metal tube may be formed at its ends both open and closed. Open, it is especially formed when a granular substance is used, so that this is not "blown away". Closed, however, it is especially trained, when a pipe is used as an insert.

LIST OF REFERENCE NUMBERS

1

Warhead, projectile, multipurpose projectile

2

tail

3

bullet body

4

Projectile shell, splinter shell, warhead cover

5

ignition device

6

Symmetry axis (projectile)

7

metal pipe

8th

deposits pipe

9

Symmetry axis (metal tube)

10

explosive charge

11

gas

12

Detonation wavefront

13

Transition area

14

compacted tube area

15

not compacted tube area

16

cavity

17

granular material

18

Detonation wave guide

Claims (8)

Warhead with an ignition device (5) and a projectile-forming charge having the features: a) the projectile-forming charge comprises a metal tube (7) whose axis of symmetry (9) is arranged in the main direction of action of the projectile which can be formed by explosive deformation, b) the metal tube (7) is surrounded on the outside at least in part by a dammed explosive charge (10), such that after ignition of the explosive charge (10) a detonation wavefront (12) is formed, which the metal tube (7) with respect to the main direction of compacted back to front into a projectile and accelerated in the said direction. A warhead according to claim 1, characterized in that the metal tube (7) is lined with a liner tube (8) which has a lower density than the metal tube. A warhead according to claim 2, characterized in that the metal tube (7) consists of steel, tungsten, tantalum or copper and the insert tube consists of aluminum or magnesium. A warhead according to claim 1, characterized in that the cavity (16) of the metal pipe (7) is filled with a granular material (17) of lesser density than the metal pipe (7), preferably of aluminum and / or magnesium. A warhead according to any one of claims 1 to 4, characterized in that the warhead (1) is a multipurpose projectile, the confiscation of the explosive charge (10) being a splinter shell (4). Warhead according to one of claims 1 to 5, characterized in that the axis of symmetry (9) of the metal tube (7) and the axis of symmetry (6) of the projectile (1) coincide. Warhead according to one of Claims 1 to 6, characterized in that the warhead casing (4) located in the main direction of action of the projectile-forming charge has a smaller wall thickness than in its remaining area. Warhead according to one of Claims 1 to 6, characterized in that the warhead casing (4) located in the main direction of action of the projectile-forming charge has an opening whose diameter corresponds at least to the diameter of the projectile resulting after explosive deformation.

Images