EP0322592A1 - Fragmentation body for a projectile - Google Patents

Fragmentation body for a projectile Download PDF

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Publication number
EP0322592A1
EP0322592A1 EP88120076A EP88120076A EP0322592A1 EP 0322592 A1 EP0322592 A1 EP 0322592A1 EP 88120076 A EP88120076 A EP 88120076A EP 88120076 A EP88120076 A EP 88120076A EP 0322592 A1 EP0322592 A1 EP 0322592A1
Authority
EP
European Patent Office
Prior art keywords
recess
balls
outer shell
projectile
area
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.)
Granted
Application number
EP88120076A
Other languages
German (de)
French (fr)
Other versions
EP0322592B1 (en
Inventor
Günther Hofmann
Siegfried Rhau
Adolf Weber
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.)
Diehl Verwaltungs Stiftung
Original Assignee
Diehl GmbH and Co
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 Diehl GmbH and Co filed Critical Diehl GmbH and Co
Publication of EP0322592A1 publication Critical patent/EP0322592A1/en
Application granted granted Critical
Publication of EP0322592B1 publication Critical patent/EP0322592B1/en
Anticipated expiration legal-status Critical
Expired - Lifetime 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
    • F42B12/20—Projectiles, missiles or mines characterised by the warhead, the intended effect, or the material characterised by the warhead or the intended effect of high-explosive type
    • F42B12/22—Projectiles, missiles or mines characterised by the warhead, the intended effect, or the material characterised by the warhead or the intended effect of high-explosive type with fragmentation-hull construction
    • F42B12/32—Projectiles, missiles or mines characterised by the warhead, the intended effect, or the material characterised by the warhead or the intended effect of high-explosive type with fragmentation-hull construction the hull or case comprising a plurality of discrete bodies, e.g. steel balls, embedded therein or disposed around the explosive charge

Definitions

  • the invention relates to a splinter body for splinter projectiles, in which splinters designed as spheres are pressed between two centrally arranged shells, the outer shell being plastically molded into a recess having the balls.
  • the object of the invention is therefore to design the end-face contact surfaces of the sleeves so that the outer sleeve is connected to the inner sleeve in a gas-tight manner.
  • the invention solves this problem in that the recess is dovetail-shaped and the outer shell with its corresponding end faces rests over the entire surface with relatively high pressure.
  • a further advantage of the invention is that the front end connection of the inner and outer shell is stable in the case of highly stressed projectiles.
  • An inner shell 1 has a dovetail-shaped recess 2 with undercut end faces 3 and 4.
  • the inner shell 1 forms, with an outer shell 5, a projectile body 6.
  • Balls 10 designed as fragments are forged between the inner shell 1 and the outer shell 5.
  • a sealing ring can be forged in the area 11 on the peripheral surfaces to improve the sealing effect.

Abstract

In a splinter-projectile body (6) consisting of an inner casing (1) and an outer casing (5) and of splinters (10) arranged between these, a gas-tight connection between the inner casing (1) and outer casing (5) is obtained in that the outer casing (5) is forged positively and non-positively into a dovetailed recess (2). <IMAGE>

Description

Die Erfindung bezieht sich auf einen Splitterkörper für Splittergeschosse, bei dem als Kugeln ausgebildete Splitter zwischen zwei zentrisch ineinander angeordneten Hüllen eingepreßt sind, wobei die äußere Hülle in eine, die Kugeln aufweisende Ausnehmung plastisch eingeformt ist.The invention relates to a splinter body for splinter projectiles, in which splinters designed as spheres are pressed between two centrally arranged shells, the outer shell being plastically molded into a recess having the balls.

Aus dem deutschen Patent 28 52 657 ist ein o.g. Splitterkörper für Splitter­geschosse bekannt.
Nach der bisherigen Fertigungsmethode wurde auf die innere Hülle die Kugeln aufgebracht, darüber eine äußere Hülle geschoben und die äußere Hülle auf der mit Kugeln belegten Länge überschmiedet. Bei Herstellung der Geschoßhülle aus dem vorgenannten Schmiedeteil mußten zur Erreichung der geforderten Dich­tigkeit zwischen den beiden Hüllen an den stirnseitigen Stoßstellen Schweiß­nähte gelegt werden. Diese Nähte waren nur teilweise gasdicht und mußten durch eine teuere Nachbehandlung abgedichtet werden. Durch die Undichtigkeit der Nähte gelangte in den Splitterbereich Feuchtigkeit und beeinträchtigte durch Korrosion die Festigkeit der äußeren Hülle.From the German patent 28 52 657, an above-mentioned splinter body for splinter projectiles is known.
According to the previous production method, the balls were applied to the inner shell, an outer shell was pushed over it and the outer shell was forged over the length covered with balls. When producing the projectile casing from the above-mentioned forged part, weld seams had to be placed at the front joints to achieve the required tightness between the two casings. These seams were only partially gas-tight and had to be sealed by an expensive after-treatment. The seam leakage caused moisture to enter the splinter area and impaired the strength of the outer shell due to corrosion.

Die Aufgabe der Erfindung besteht daher darin, die stirnseitigen Berührungs­flächen der Hüllen so auszubilden, daß die äußere Hülle mit der inneren Hülle gasdicht verbunden ist.The object of the invention is therefore to design the end-face contact surfaces of the sleeves so that the outer sleeve is connected to the inner sleeve in a gas-tight manner.

Die Erfindung löst diese Aufgabe dadurch, daß die Ausnehmung schwalbenschwanz­förmig ausgebildet ist und die äußere Hülle mit ihren entsprechenden Stirn­flächen mit relativ hohem Druck vollflächig anliegt. Neben der kostengünstigen Herstellung besteht ein weiterer Vorteil der Erfindung darin, daß die vordere stirnseitige Verbindung von innerer und äußerer Hülle bei hochbeanspruchten Geschossen standfest ist.The invention solves this problem in that the recess is dovetail-shaped and the outer shell with its corresponding end faces rests over the entire surface with relatively high pressure. In addition to the inexpensive manufacture, a further advantage of the invention is that the front end connection of the inner and outer shell is stable in the case of highly stressed projectiles.

An dieser Verbindungsstelle trat bei den hohen Drallbeanspruchungen oder bei Drallgeschossen in weitgehend ausschossenen Waffenrohren bisher ein Loslösen der inneren Hülle auf, indem sie über die Geschoß­kontur hinausragte. Dadurch veränderte sich die Trefferlage des Geschosses wesentlich.At this juncture, with the high swirl stresses or swirl projectiles in largely imposed gun barrels, the inner shell has so far been detached by protruding beyond the contour of the projectile. As a result, the hit position of the projectile changed significantly.

Eine vorteilhafte Weiterbildung ist dem Unteranspruch zu entnehmen.An advantageous further development can be found in the subclaim.

Ein Ausführungsbeispiel der Erfindung ist in der Zeichnung dargestellt.An embodiment of the invention is shown in the drawing.

Eine innere Hülle 1 weist eine schwalbenschwanzförmige Ausnehmung 2 mit hinterschnittenen Stirnflächen 3 und 4 auf. Die innere Hülle 1 bildet mit einer äußeren Hülle 5 einen Geschoßkörper 6. Als Splitter ausgebildete Kugeln 10 liegen eingeschmiedet zwischen der inneren Hülle 1 und der äußeren Hülle 5.An inner shell 1 has a dovetail-shaped recess 2 with undercut end faces 3 and 4. The inner shell 1 forms, with an outer shell 5, a projectile body 6. Balls 10 designed as fragments are forged between the inner shell 1 and the outer shell 5.

Die durch den Pfeil 13 angedeuteten Druckspannungen in der äußeren Hülle 5, die aufgrund des Schmiedens in Pfeilrichtung 14 der äußeren Hülle 5 auf die innere Hülle 1 entstanden sind, bewirken an den Stirnflächen 3 und 4 einen relativ hohen Anpreßdruck, so daß ein Aufbauchen der äußeren Hülle 5 oder ein Ablösen eines vorderen Be­reiches 11 in Pfeilrichtung 12 nicht auftritt.The compressive stresses indicated by the arrow 13 in the outer shell 5, which have arisen due to the forging in the direction of arrow 14 of the outer shell 5 on the inner shell 1, cause a relatively high contact pressure on the end faces 3 and 4, so that the outer bulges Sheath 5 or a detachment of a front area 11 in the direction of arrow 12 does not occur.

An der ogivenseitigen Stirnfläche 3 wird dies durch einen separaten Verformungsbereich 15 mit relativ großer radialer Tiefe 16 sowie Dichtfläche in Form der Stirnfläche 3 erreicht. Denn im Bereich 11 ist bezüglich des Geschoßkörpers 6 die Wanddicke durch die Ogive dünner als im Bereich der Stirnfläche 4. An den Verformungsbereich 15 schließt sich eine Stufe 19 und ein Splitterbereich 17 mit einer Stufe 18 an.On the ogive-side end face 3, this is achieved by a separate deformation area 15 with a relatively large radial depth 16 and a sealing face in the form of the end face 3. Because in area 11, the wall thickness through the ogive is thinner than in the area of the end face 4 with respect to the projectile body 6. A step 19 and a splinter area 17 with a step 18 adjoin the deformation area 15.

Im Bereich 11 kann an den Umfangsflächen zur Verbesserung der Dicht­wirkung ein Dichtring eingeschmiedet sein.A sealing ring can be forged in the area 11 on the peripheral surfaces to improve the sealing effect.

Claims (2)

1. Splitterkörper für Splittergeschosse, bei dem als Kugeln ausgebildete Splitter zwischen zwei zentrisch ineinander angeordneten Hüllen eingepreßt sind, wobei die äußere Hülle in eine, die Kugeln aufweisende Ausnehmung plastisch eingeformt ist,
dadurch gekennzeichnet,
daß die Ausnehmung (2) schwalbenschwanzförmig ausgebildet ist,
und die äußere Hülle (5) mit ihren entsprechenden Stirnflächen mit relativ hohem Druck (13) an den hinterschnittenen Stirnflächen (3,4) vollflächig anliegt.1. fragmentation body for fragmentary projectiles, in which fragments designed as spheres are pressed between two centrally arranged shells, the outer shell being plastically molded into a recess having the balls,
characterized,
that the recess (2) is dovetail-shaped,
and the outer casing (5) with its corresponding end faces rests with a relatively high pressure (13) on the undercut end faces (3, 4) over the entire surface. 2. Splitterkörper nach Anspruch 1,
dadurch gekennzeichnet,
daß die Ausnehmung (2) einen durch Stufen (19,18) begrenzten Splitterbe­reich (17) zur Aufnahme der Kugeln (10) und anschließend ogivenseitig einen relativ tiefen Verformungsbereich (15) mit einer relativ großen Dichtfläche (Stirnfläche 3) aufweist.2. splinter body according to claim 1,
characterized,
that the recess (2) has a fragment area (17) delimited by steps (19, 18) for receiving the balls (10) and then on the ogive side a relatively deep deformation area (15) with a relatively large sealing surface (end face 3).
EP88120076A 1987-12-04 1988-12-01 Fragmentation body for a projectile Expired - Lifetime EP0322592B1 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE19873741141 DE3741141A1 (en) 1987-12-04 1987-12-04 SPLITTER BODY FOR SPLITTER STOOLS
DE3741141 1987-12-04

Publications (2)

Publication Number Publication Date
EP0322592A1 true EP0322592A1 (en) 1989-07-05
EP0322592B1 EP0322592B1 (en) 1993-03-31

Family

ID=6341890

Family Applications (1)

Application Number Title Priority Date Filing Date
EP88120076A Expired - Lifetime EP0322592B1 (en) 1987-12-04 1988-12-01 Fragmentation body for a projectile

Country Status (3)

Country Link
US (1) US4936217A (en)
EP (1) EP0322592B1 (en)
DE (2) DE3741141A1 (en)

Families Citing this family (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CA2111359A1 (en) * 1991-06-13 1992-12-23 Cameron Thomson Ammunition
DE4120463C2 (en) * 1991-06-21 2000-09-14 Bosch Gmbh Robert Method and device for controlling a solenoid-controlled fuel metering system
US8689669B2 (en) * 2003-04-30 2014-04-08 Bofors Defence Ab Method of producing warheads containing explosives
US10634472B1 (en) 2016-03-22 2020-04-28 Northrop Grumman Innovation Systems, Inc. Prefragmented warheads with enhanced performance
US11614311B1 (en) 2016-03-22 2023-03-28 Northrop Grumman Systems Corporation Prefragmented warheads with enhanced performance
US11226181B2 (en) * 2017-03-06 2022-01-18 Omnitek Partners, L.L.C. High explosive fragmentation mortars
SE543620C2 (en) * 2017-12-05 2021-04-20 Bae Systems Bofors Ab Effect part with preformed elements

Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2856856A (en) * 1955-06-02 1958-10-21 Louis S Michael Segmented rotating band for artillery projectiles
CH501888A (en) * 1969-01-20 1971-01-15 Bofors Ab HE grenade
DE2606701A1 (en) * 1976-02-19 1977-09-01 Messerschmitt Boelkow Blohm Explosive ammunition with particles of pyrophorous material - has explosive charge enclosed concentrically by pyrophorous particles of different sizes
FR2345697A1 (en) * 1976-03-23 1977-10-21 Diehl FLASH SOCKET FOR PROJECTILES, ATTACK HEADS OR SIMILAR
EP0012323A1 (en) * 1978-12-06 1980-06-25 DIEHL GMBH &amp; CO. Process for producing metallic objects, in particular projectiles, by incorporating discrete particles in a metallic matrix material

Family Cites Families (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2996012A (en) * 1955-11-17 1961-08-15 Rex B Butler Rotating band and seat therefor
DE2852657C2 (en) * 1978-12-06 1984-10-04 Diehl GmbH & Co, 8500 Nürnberg Fragmentation body for fragmentation projectiles
ES476388A1 (en) * 1978-12-27 1979-04-16 Lasheras Barrios Fernando Anti-aircraft projectile.
DE3761061D1 (en) * 1986-03-07 1990-01-04 Oerlikon Buehrle Ag CONNECTION BETWEEN THE DRIVE MIRROR SHELL AND THE DRIVE MIRROR REAR OF A DRIVE MIRROR BULLET.

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2856856A (en) * 1955-06-02 1958-10-21 Louis S Michael Segmented rotating band for artillery projectiles
CH501888A (en) * 1969-01-20 1971-01-15 Bofors Ab HE grenade
DE2606701A1 (en) * 1976-02-19 1977-09-01 Messerschmitt Boelkow Blohm Explosive ammunition with particles of pyrophorous material - has explosive charge enclosed concentrically by pyrophorous particles of different sizes
FR2345697A1 (en) * 1976-03-23 1977-10-21 Diehl FLASH SOCKET FOR PROJECTILES, ATTACK HEADS OR SIMILAR
EP0012323A1 (en) * 1978-12-06 1980-06-25 DIEHL GMBH &amp; CO. Process for producing metallic objects, in particular projectiles, by incorporating discrete particles in a metallic matrix material

Also Published As

Publication number Publication date
DE3879913D1 (en) 1993-05-06
DE3741141A1 (en) 1989-06-15
EP0322592B1 (en) 1993-03-31
US4936217A (en) 1990-06-26

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