EP0069302B1 - Projectile perce-cuirasse - Google Patents

Projectile perce-cuirasse Download PDF

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Publication number
EP0069302B1
EP0069302B1 EP82105625A EP82105625A EP0069302B1 EP 0069302 B1 EP0069302 B1 EP 0069302B1 EP 82105625 A EP82105625 A EP 82105625A EP 82105625 A EP82105625 A EP 82105625A EP 0069302 B1 EP0069302 B1 EP 0069302B1
Authority
EP
European Patent Office
Prior art keywords
projectile
zone
accordance
fact
impact
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Expired
Application number
EP82105625A
Other languages
German (de)
English (en)
Other versions
EP0069302A1 (fr
Inventor
Jürgen Dr. Dipl.-Phys. Böcker
Klaus Gersbach
Karl Wilhelm Dipl.-Ing. Bethmann
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Rheinmetall Industrie AG
Original Assignee
Rheinmetall GmbH
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Rheinmetall GmbH filed Critical Rheinmetall GmbH
Publication of EP0069302A1 publication Critical patent/EP0069302A1/fr
Application granted granted Critical
Publication of EP0069302B1 publication Critical patent/EP0069302B1/fr
Expired legal-status Critical Current

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Classifications

    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F42—AMMUNITION; BLASTING
    • F42B—EXPLOSIVE CHARGES, e.g. FOR BLASTING, FIREWORKS, AMMUNITION
    • F42B12/00—Projectiles, missiles or mines characterised by the warhead, the intended effect, or the material
    • F42B12/02—Projectiles, missiles or mines characterised by the warhead, the intended effect, or the material characterised by the warhead or the intended effect
    • F42B12/04—Projectiles, missiles or mines characterised by the warhead, the intended effect, or the material characterised by the warhead or the intended effect of armour-piercing type
    • F42B12/08—Projectiles, missiles or mines characterised by the warhead, the intended effect, or the material characterised by the warhead or the intended effect of armour-piercing type with armour-piercing caps; with armoured cupola

Definitions

  • the invention relates to an armor-piercing projectile according to the preamble of patent claim 1.
  • a projectile of the aforementioned type is known from GB-A-1 095 992.
  • the ballistic hood is connected to a projectile casing made of steel by means of a thread on the front. Both encase a main part of a bullet made of tungsten carbide, the circular cylindrical main area of which is followed by a circular truncated cone on the front, which is delimited at the front by a spherical section.
  • a separate front part made of a tungsten-sintered alloy has an essentially ogival outer surface and on the back in a flat base surface a recess as a receptacle for the spherical section and a front region of the circular truncated cone of the main part of the projectile.
  • a respective cavity disadvantageously remains in the respective area, which is delimited on the one hand by the inner surface of the hood and on the other hand by the outer surface of the front part or the outer surface of the circular truncated cone. This affects the apparent density of the known bullet.
  • the known projectile is intended for swirl stabilization and, because of its typical length / diameter ratio, is not suitable for fighting heavy multi-plate targets.
  • a similar projectile is also known from DE-A-1 194 222.
  • the invention has for its object to provide a projectile of the type mentioned, which is sufficiently effective when striking flat against a multi-layer target of different design.
  • a front part 18 with a tip region 20 and a rear region 22 adjoins a front region 14 of a main projectile part 12 of a sub-caliber missile 10.
  • the former is provided with a ballistic hood 66, while a predetermined breaking point 90 to be explained in more detail is arranged in the border region between the latter and the front region 14.
  • the tip region 20 is delimited on the back by a peripheral edge 24, to which an edge 44 is adjoined by a first surface 34 which is inclined in the firing direction S against the longitudinal axis A and surrounds it as a truncated cone.
  • the edge 44 delimits a second surface 36 in the weft direction S more than the surface 34 inclined towards the projectile longitudinal axis A, which also encompasses the projectile longitudinal axis A as a truncated cone.
  • the surface 36 is delimited on the front by an edge 46.
  • a third surface 38 which is more inclined in the weft direction S than the surface 36 against the longitudinal axis A of the projectile, extends between the rear edge 46 and a front edge 48. This delimits on the rear side a further, more inclined than the surface 38 in the weft direction S against the longitudinal axis A of the projectile Surface 40 which extends on the front side to an edge 42 which encircles the longitudinal axis of the projectile in a circle.
  • the latter includes a flat front surface 42 on which the longitudinal axis A of the floor is perpendicular.
  • a circular cylindrical part 26 extends between the front edge 24 and a rear annular surface 28.
  • the ballistic hood 66 covers the tip region 20 of the front part 18 with a wall 68, with an over throw 70 extending from an outer edge 74 to a rear annular surface 72 whose inside diameter is adapted to the outside diameter of the circular cylindrical part 26.
  • the ballistic hood 66 is arranged in such a way that the two circular ring surfaces 28 and 72 are adjacent to one another and are firmly connected to one another, for example by means of soldering or another joining method.
  • a circular-cylindrical circumferential surface 30 extends continuously to the outer edge 74.
  • the circular-cylindrical part 26 can also be provided with an external thread, not shown, which corresponds to an internal thread, also not shown, in the union 70.
  • the surfaces 34, 36, 38 and 40 in the tip region 20 of the front part 18 form a device G. This has the task, when the flying bullet hits the target surface 82 (see FIG. 3) with its respective surface 34, 36 involved, 38 or 40 to serve as a friction-reducing sliding aid.
  • the target surface 82 can be provided with a lubricant L.
  • a lubricant L for example, there are: graphite, molybdenum disulfide, glass and lead, and other low-melting metals.
  • a plurality of lubricants L can also be provided, a corresponding layer being applied to the surfaces 34, 36, 38 and 40 and / or an interior 80 of the ballistic hood 66 being filled with the lubricant L.
  • both glass and lead or another metal can be in powder form and the arrangement mentioned with a thread in the cap 70 and on the circular cylindrical part 26 can prove to be particularly advantageous.
  • the front part 18 is equipped in its tip region 20 with a rotatably mounted ball 52, which is provided as a device R for reducing friction.
  • a hollow spherical surface 58 is formed in the front part 18 as a ball socket 56.
  • the hollow spherical surface 58 is delimited on the front by an annular surface 60, up to which a circular cylindrical part 62 of the front part 18 extends from a rear annular surface 64.
  • the ballistic hood 66 has an area 78 of contact with the spherical surface 54 on its inner surface 76 of the wall 68 which encloses the interior 80.
  • connection of the ballistic hood 66 to the front part 18 is realized analogously to that described in the first exemplary embodiment according to FIG. 1.
  • the friction-reducing lubricant L is advantageously arranged in a region, not shown and designated, between the hollow spherical surface 58 of the ball socket 56 and the spherical surface 54.
  • the mode of operation of the invention is described below with reference to FIG. 3.
  • the missile 10 (its ballistic hood is not shown for reasons of clarity) has approached an armored target 81 shown in detail on a trajectory not shown and touches the target area 82 with the device G (or R) in an impact area Z.
  • the track the target surface 82 in the plane of the drawing includes with the longitudinal axis A an acute angle, not specified. Thanks to the friction-reducing sliding effect of the device G (or R), the tip region 20 of the front part 18 is deflected from the target surface 82 in the direction of an arrow 84 pointing away from the target surface 82.
  • the rear region 22 of the front part 18 is pivoted in the direction of an arrow 86 opposite the arrow 84 against the target surface 82.
  • the predetermined breaking point 90 is designed such that a considerable part of the pulse rotating in the direction of arrow 86 is effective via the front part 14 on the projectile main part 12, so that the latter rotates against the target surface 82 and the projectile longitudinal axis A with the track of the target surface 82 now includes an angle that is greater than that at the moment the device G (or R) touches the target surface 82. As a result, comparatively much better penetration conditions are advantageously created for the main projectile part 12.
  • the projectile main part 12 breaks as a result of a hard impact impact and thereby loses considerable effectiveness. Since the used front part 18 also moves away from the impact area Z in the direction of an arrow 88, it cannot interfere with the penetration process of the main projectile part 12.
  • a stabilizing tail 32 arranged in the rear area 16 of the main projectile 12 is advantageously detachable - which is already the subject of an older patent application by the applicant - so as not to impair the penetration effect of the main projectile 12.
  • a front flat end face 15 of the front region 14 of the main projectile part 12 and a likewise flat rear surface 23 of the rear region 22 of the front part 18 form a butt joint forming the predetermined breaking point 90.
  • a connection between the two surfaces 15 and 23 is formed in such a way that as large a part of the rotating impulse as possible acts on the main projectile part 12 in the course of the breaking process.
  • An edge region delimiting the surface 15 on the circumference advantageously has a sharp, tough-hard bite edge 92 in each case in order to achieve a greater target effectiveness.
  • the predetermined breaking point 90 is realized by a targeted structural weakening.
  • material radiation for example neutron radiation
  • the predetermined breaking point 90 can also be achieved by joining in such a way that the front part 18 is connected to the front area 14 of the main projectile part 12 via the surfaces 15 and 23 which have just been formed in a predeterminable manner.
  • a pulse deflecting against the target surface 82 is sufficiently effective on the front region 14 of the main projectile part 12: between the longitudinal axis of the latter and the target surface 82 there should be a angles which favor the intended penetration process can be achieved.
  • One of the The latter requirement for example the design of the predetermined breaking point 90, is shown in dashed lines in FIG.
  • the surface 23 has a convex region 23 ', to which it is connected via an annular surface 23 ".
  • the counter surface with a recess 15' and 15" is adapted accordingly.
  • this initially increases the areas available for mutual connection and thus pulse transmission.
  • FIG. 2 a further design option for the predetermined breaking point 90 is shown in FIG. 2 with dashed lines.
  • adjacent and unspecified surfaces form a butt joint 90 '(shown here)
  • a space 91 remains between the wall of the recess 15k and the truncated cone jacket 23K.
  • the butt joint 90 ' is advantageously included in the predetermined breaking point 90 by appropriate joining or mortising.

Landscapes

  • Engineering & Computer Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Combustion & Propulsion (AREA)
  • General Engineering & Computer Science (AREA)
  • Aiming, Guidance, Guns With A Light Source, Armor, Camouflage, And Targets (AREA)

Claims (11)

1. Projectile aérien sous-calibré perce-cuirasse (10) comportant une partie antérieure (18) revêtue d'un dome balistique (66) qui s'emboîte avec une partie principale (12) du projectile placée derrière elle par un évidement (15", 23' ; 15k, 90') et une saillie (21 ; 22k) qui y pénètre, comporte une surface latérale antérieure (G ; 54) pour réduire le frottement mutuel avec une surface (82) d'une cible, est reliée à l'arrière au corps principal (12) du projectile par un emplacement destiné à la rupture (90) dirigé périphériquement, perpendiculairement à l'axe longitudinal (A) du projectile, qui transmet, lors de l'impact à plat du projectile (10) sur la surface (82) de la cible, en liaison avec l'activation de l'emplacement (90) destiné à la rupture, une quantité de mouvements tournants au corps principal (12) du projectile, de telle façon que ce dernier est, en pivotant en direction de la normale à la surface au point d'impact, amené à pénétrer avec un angle plus accentué dans la cible (81), caractérisé par les points suivants :
a) de façon connue en soi, dans la zone de l'emplacement de rupture (90), la partie antérieure (18) et une zone antérieure (14) du corps principal (12) du projectile qui s'y raccorde postérieurement ont un même diamètre, l'évidement (15", 23' ; 15k, 90') correspondant au corps principal (12) du boîtier comportant à l'avant un bord d'attaque acéré (92) ;
b) l'emplacement de rupture (90) embrasse deux surfaces annulaires circulaires en contact (15, 23) qui déterminent par l'augmentation de surface de leur zone d'aboutement mutuel la grandeur de la quantité de mouvements tournants à transmettre lors de l'activation de la zone de rupture (90), la surface annulaire circulaire (15) correspondant au corps principal (12) du projectile étant délimitée à la périphérie par le bord d'attaque (92) ;
c) le projectile (10) présente, aux fins de stabilisation par empennage, un grand rapport longueur/diamètre et présente pratiquement le même diamètre sur toute sa longueur ;
d) la partie antérieure (18) comporte, dans sa zone en pointe (20), un dispositif (G ; R) destiné à diminuer le frottement au moment de l'impact sur une surface de cible (82) inclinée d'un angle aigu par rapport à l'axe longitudinal (A) du projectile ; et
e) lors de l'impact sur une surface de cible (82), le dispositif (G ; R) est dévié de la surface (82) de la cible dans la direction d'une flèche (84) et la zone postérieure (22) de la partie antérieure (18) tourne en même temps, dans la direction d'une flèche (86) opposée à la flèche (84), vers la surface (82) de la cible, l'emplacement de rupture (90) devenant opérationnel, la zone antérieure (14) du corps principal (12) du projectile tournant également vers la surface (82) dans la direction de la flèche (86) et n'étant pas gênée, lors de la pénétration dans cette dernière sous un angle aigu inférieur à l'angle d'impact, par la partie antérieure (18) utilisée qui s'éloigne, dans la direction d'une flèche (88), de la zone d'impact (Z).
2. Projectile selon la revendication 1, caractérisé en ce que le dispositif (G) comporte au moins deux surfaces (34, 36, 38, 40) inclinées vers l'axe longitudinal (A) du projectile dans la direction de tir (S).
3. Projectile selon la revendication 1, caractérisé par les points suivants :
a) le dispositif (5) embrasse une sphère (52) ;
b) la sphère (52) est disposée de façon à pouvoir tourner dans une cuvette (56) ; et
c) la cuvette (56) est constituée principalement par une surface sphérique creuse (58) du côté de la partie antérieure (18) opposé à l'emplacement de rupture (90).
4. Projectile selon l'une des revendications 1 à 3, caractérisé en ce que le dispositif (G ; R) comporte au moins un lubrifiant (L).
5. Projectile selon la revendication 4, caractérisé en ce que l'un des lubrifiants (L) se trouve au voisinage immédiat des surfaces (34, 36, 38, 40).
6. Projectile selon la revendication 4, caractérisé en ce que l'un des lubrifiants (L) se trouve au voisinage de la surface (58).
7. Projectile selon la revendication 4, caractérisé en ce qu'une cavité (80) du dôme balistique (66) est remplie d'un lubrifiant (L).
8. Projectile selon la revendication 4 ou 5, caractérisé en ce que la matière du dôme balistique (66) constitue l'un des lubrifiants (L).
9. Projectile selon l'une des revendications 1 à 6, caractérisé en ce que la zone de rupture est réalisée par jonction prédéterminable d'une zone de surface (15, 15', 15") et d'une zone de surface (23, 23', 23").
10. Projectile selon la revendication 7, caractérisé en ce que la zone de surface (15' ; 23") est au moins partiellement concave, et la zone de surface (23' ; 15") est partiellement convexe.
11. Projectile selon la revendication 7, caractérisé par les points suivants :
a) la surface (23) présente une saillie (22k) sensiblement tronconique comportant une surface extérieure (23K) ;
b) la saillie (22K) correspond à un évidement (15k) de la surface (15) ;
c) un intervalle radial prédéterminable entre la surface extérieure (23K) et la surface de délimitation périphérique de l'évidement (15k) permet d'obtenir une cavité (91) embrassant la saillie (22K) ; et
d) il résulte, au moins de la cavité (91), un affaiblissement de section droite dans la zone de l'emplacement de rupture (90).
EP82105625A 1981-07-04 1982-06-25 Projectile perce-cuirasse Expired EP0069302B1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE3126399A DE3126399A1 (de) 1981-07-04 1981-07-04 Panzerbrechendes geschoss
DE3126399 1981-07-04

Publications (2)

Publication Number Publication Date
EP0069302A1 EP0069302A1 (fr) 1983-01-12
EP0069302B1 true EP0069302B1 (fr) 1985-09-18

Family

ID=6136098

Family Applications (1)

Application Number Title Priority Date Filing Date
EP82105625A Expired EP0069302B1 (fr) 1981-07-04 1982-06-25 Projectile perce-cuirasse

Country Status (4)

Country Link
US (1) US4677915A (fr)
EP (1) EP0069302B1 (fr)
DE (2) DE3126399A1 (fr)
IL (1) IL66204A (fr)

Families Citing this family (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE4022821A1 (de) * 1990-07-18 1992-01-23 Rheinmetall Gmbh Unterkalibriges wuchtgeschoss
AT397867B (de) * 1992-10-27 1994-07-25 Oregon Ets Patentverwertung Geschoss
US6662726B1 (en) * 1999-03-08 2003-12-16 General Dynamics Ordnance And Tactical Systems, Inc. Kinetic energy penetrator
US8291828B2 (en) 2010-03-04 2012-10-23 Glasser Alan Z High velocity ammunition round
US8096243B2 (en) * 2010-03-04 2012-01-17 Glasser Alan Z High velocity ammunition round
DE102020116589A1 (de) * 2020-06-24 2021-12-30 Rheinmetall Waffe Munition Gmbh Penetrator, Verwendung eines Penetrators und Geschoss

Family Cites Families (16)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US465230A (en) * 1891-12-15 wilson
DE95786C (fr) *
US1089161A (en) * 1913-12-10 1914-03-03 Albert F Shore Projectile.
FR568093A (fr) * 1923-09-19 1924-03-14 Schneider & Cie Dispositif pour le graissage des tubes de canons pendant le tir
US1760685A (en) * 1927-12-05 1930-05-27 John L Cox Projectile
GB1095992A (en) * 1959-04-14 1967-12-20 Secr Defence Improvements in or relating to projectiles
DE1158871B (de) * 1959-12-19 1963-12-05 Bofors Ab Panzergeschoss
US3213792A (en) * 1962-11-20 1965-10-26 Bofors Ab Armor-piercing projectile with hard core
FR1388760A (fr) * 1962-11-20 1965-02-12 Projectile à noyau dur
DE1428679C1 (de) * 1964-12-29 1977-09-15 Deutsch Franz Forsch Inst Hartkerngeschoss zur Bekaempfung von Panzerzielen
FR1474596A (fr) * 1966-04-05 1967-03-24 Bofors Ab Projectile perforant
CH495547A (de) * 1968-05-31 1970-08-31 Rheinmetall Gmbh Flügelstabilisiertes Unterkalibergeschoss
DE2361954A1 (de) * 1973-12-13 1975-06-19 Krauss Maffei Ag Geschoss
FR2339833A1 (fr) * 1976-01-30 1977-08-26 Thomson Brandt Corps perforant de projectile et munition equipee d'un tel corps
DE2844870C2 (de) * 1978-10-14 1984-10-18 Rheinmetall GmbH, 4000 Düsseldorf Unterkalibriges Übungsgeschoß
FR2442428A1 (fr) * 1978-11-23 1980-06-20 France Etat Nouveau projectile a energie cinetique

Also Published As

Publication number Publication date
IL66204A (en) 1988-01-31
DE3266374D1 (en) 1985-10-24
EP0069302A1 (fr) 1983-01-12
DE3126399A1 (de) 1983-01-13
US4677915A (en) 1987-07-07

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