EP1045222B1 - Projectile à éclats prédéterminés - Google Patents

Projectile à éclats prédéterminés Download PDF

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Publication number
EP1045222B1
EP1045222B1 EP00107430A EP00107430A EP1045222B1 EP 1045222 B1 EP1045222 B1 EP 1045222B1 EP 00107430 A EP00107430 A EP 00107430A EP 00107430 A EP00107430 A EP 00107430A EP 1045222 B1 EP1045222 B1 EP 1045222B1
Authority
EP
European Patent Office
Prior art keywords
balls
warhead according
metal powder
metal
heavy
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 - Lifetime
Application number
EP00107430A
Other languages
German (de)
English (en)
Other versions
EP1045222A2 (fr
EP1045222A3 (fr
Inventor
Ulrich Dr. Hornemann
Siegfried Rhau
Jürgen Kunz
Peter Scharf
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.)
Fraunhofer Gesellschaft zur Forderung der Angewandten Forschung eV
Diehl BGT Defence GmbH and Co KG
Original Assignee
Fraunhofer Gesellschaft zur Forderung der Angewandten Forschung eV
Diehl Munitionssysteme GmbH and Co KG
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 Fraunhofer Gesellschaft zur Forderung der Angewandten Forschung eV, Diehl Munitionssysteme GmbH and Co KG filed Critical Fraunhofer Gesellschaft zur Forderung der Angewandten Forschung eV
Publication of EP1045222A2 publication Critical patent/EP1045222A2/fr
Publication of EP1045222A3 publication Critical patent/EP1045222A3/fr
Application granted granted Critical
Publication of EP1045222B1 publication Critical patent/EP1045222B1/fr
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 warhead with splintering after Preamble of claim 1.
  • a detonation body in the form of a grenade is known from DE 38 22 375 A1.
  • An explosive charge is present on a fragmentation unit.
  • the splitter unit exists made of separately manufactured spherical metal balls in their plane of contact have a hexagonal shape.
  • the splinters are sintered together connected and therefore self-supporting.
  • Two protective layers cover the splinter layer on.
  • the density of the protective layers is between 20 and 75% of the density the splinter layer, the splinters being made of heavy metal or steel.
  • the explosives side Sheet metal has indentations for receiving the balls, so that the explosive-side, approximately funnel-shaped cavities almost filled by the sheet are.
  • the target-side, approximately funnel-shaped cavities are through the sheet, which lies approximately at the balls, is not filled.
  • the balls not only have a very high energy and thus have a long range, but that the balls remain erosion-free and retain their ball shape until they hit the target.
  • the splinter bodies are heavily eroded by the detonation swaths and, in some cases, balls are compressed into a flat shape.
  • the balls are stored or embedded in a casting material made of metal or in fine-grained metal powder.
  • a casting material made of metal or in fine-grained metal powder.
  • the metallic casting material at least the funnel-shaped cavities on the explosive side are filled with the casting material.
  • the metal powder when using the metal powder, the balls are completely embedded in it.
  • the casting material is preferably introduced by casting in the molten state. Are. all metals can be used that have the same or lower melting point as a cassette-shaped sheet. This sheet defines the outer shape of the splitter unit according to the invention. Zinc, aluminum and solders are particularly suitable as casting materials.
  • An explosive-side sheet which is required for metal powder bedding, is advantageously dispensed with in the cast design.
  • a warhead 1 consists of a cylindrical housing 2, an electrical one Ignition device 3 with booster charge 4, an explosive charge 5, a fragmentation unit 6 and a ring 8 for fastening the splitter unit 6.
  • the concave splitter unit 6 contains balls 10 made of tungsten heavy metal.
  • the balls 10 lie between sheets 11, 12 made of a soft, plastically deformable aluminum with a strength of 200 N / mm 2 and are embedded in a metal powder 13 made of tungsten heavy metal with a grain size of about 8 ⁇ m.
  • the cassette-shaped sheet 12 is provided with a collar 7. The height of the collar 7 defines the thickness of the splitter unit 6 in the axial direction.
  • the balls 10 abut against one another at 18 at points. Point contacts exist between the balls 10 and the sheets 11, 12 according to 17, 19.
  • the balls 10 and the metal powder 13 are made of the same material
  • the cavities 14 are delimited by the sheets 11, 12, the sheets 11, 12 point against the balls 10.
  • the ring 8 serves as a support for the splitter unit 6.
  • the ring 8 is connected to the housing 2 via a threaded connection 9 and fixes the splitter unit 6 in the housing 2 or on the explosive charge 5 without gaps. After the explosive charge 5 has been ignited by the ignition device 3 with the booster charge 4, the splitter unit 6 as a whole is accelerated from the position shown, initially during the maximum vapor pressure.
  • the sheet 11 deforms only slightly, d. that is, it dents into the powder cones 15 something, which causes the energy transfer of the explosive charge 5 to the balls 10 is only insignificantly reduced.
  • the sheet 11 perforates approximately according to the location and size of the Balls 10 while the sheet 12 is obviously pulverized. This is too conclude that the energy transfer from the explosive charge 5 on the balls 10 on the powder cone 15 on the balls 10 is maximum.
  • the balls 10 are completely metallic in a splitter unit 20 Cast material 23 stored.
  • the balls 10 lie on the target side on the cassette-shaped Sheet 12 at point 17.
  • the cast material 23 has a base layer 24 with a thickness 25 and in one piece Metal cone 26 corresponding to the powder cone 15.
  • the cast material 23 consists of zinc.
  • Conical cavities 27 exist between the sheet 12 and the balls 10 and are also filled with the casting material 23.
  • the base layer 24 replaces the sheet 11 on the explosive side Costs and functional advantages.
  • the function of the splitter unit 20 corresponds in principle to the function of the 1 and 2 described fragment unit 6. After detonation of the explosive charge 5 the splitter unit 20 is first accelerated as a whole.
  • the cast material 23 serves as a sabot. Because of the high explosive pressure, the Cast material 23 pulverized.
  • the critical phase is the explosive effect already mitigated to the extent that the balls 10 are neither deformed nor eroded.
  • the balls 10 and the metal powder 13 can also be used for the balls 10 and the metal powder 13.
  • the decisive factor is that the metal powder 13 or the casting material 23 has the greatest possible density.
  • the splitter unit 6; 20 can also be flat, ie as a flat plate or convex or be concave or in any shape.

Landscapes

  • Engineering & Computer Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Combustion & Propulsion (AREA)
  • General Engineering & Computer Science (AREA)
  • Powder Metallurgy (AREA)

Claims (11)

  1. Tête militaire (1) à effet d'éclats dans laquelle sont disposées dans un boítier (2) une charge explosive (5) et une unité à éclats (6) constituée d'au moins une couche d'éclats en métal lourd (10), les éclats en métal lourd (10) étant disposés sur une tôle (12) déformable côté cible, caractérisée en ce qu'au moins les cavités (14) côté explosif entre les éclats (10) sont remplies d'un matériau de fonte métallique (23) ou d'une poudre métallique (13) à grains fins.
  2. Tête militaire selon la revendication 1, caractérisée en ce que le matériau en fonte est constitué de zinc, d'aluminium, de métaux d'apport de brasage ou d'un autre matériau approprié.
  3. Tête militaire selon la revendication 1, caractérisée en ce que la poudre métallique présente un poids spécifique de 7 g/cm3 à 18 g/cm3 et est constituée d'un métal lourd tel que du tungstène.
  4. Tête militaire selon la revendication 1, caractérisée en ce que les éclats en métal lourd (10) et la poudre métallique (13) sont constitués du même matériau.
  5. Tête militaire selon la revendication 1, caractérisée en ce que les éclats en métal lourd sont réalisés sous la forme de billes (10).
  6. Tête militaire selon l'une des revendications précédentes, caractérisée en ce que les billes (10), presque entièrement noyées dans la poudre métallique (13), s'appliquent approximativement ponctuellement contre deux tôles (11, 12), les billes se touchent les unes les autres ponctuellement (18), et les billes (10) présentent sur la tôle (12) côté cible un contact ponctuel (17).
  7. Tête militaire selon la revendication 6, caractérisée en ce que les cavités (14) entre les tôles (11, 12)) et les billes (10) sont remplies de la poudre métallique (13) et la poudre métallique (13) se trouve sous la forme de cônes de poudre (15) avec face frontale (16) approximativement plane.
  8. Tête militaire selon la revendication 6, caractérisée en ce que les tôles (11, 12) sont constituées d'un matériau souple, plastiquement bien déformable, tel que de l'aluminium, du cuivre.
  9. Tête militaire selon la revendication 1, caractérisée en ce que la poudre métallique (13) présente une granulométrie comprise entre 3 et 50 µm.
  10. Tête militaire selon la revendication 1, caractérisée en ce que l'unité à éclats (6) est réalisée concave.
  11. Tête militaire selon la revendication 1, caractérisée en ce que les billes (10), presque entièrement noyées dans le matériau en fonte (23), présentent des contacts ponctuels (17, 18) entre elles et sur la tôle (12) côté cible.
EP00107430A 1999-04-16 2000-04-06 Projectile à éclats prédéterminés Expired - Lifetime EP1045222B1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE19917173A DE19917173A1 (de) 1999-04-16 1999-04-16 Gefechtskopf mit Splitterwirkung
DE19917173 1999-04-16

Publications (3)

Publication Number Publication Date
EP1045222A2 EP1045222A2 (fr) 2000-10-18
EP1045222A3 EP1045222A3 (fr) 2001-07-25
EP1045222B1 true EP1045222B1 (fr) 2004-03-24

Family

ID=7904758

Family Applications (1)

Application Number Title Priority Date Filing Date
EP00107430A Expired - Lifetime EP1045222B1 (fr) 1999-04-16 2000-04-06 Projectile à éclats prédéterminés

Country Status (2)

Country Link
EP (1) EP1045222B1 (fr)
DE (2) DE19917173A1 (fr)

Families Citing this family (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
IL184492A0 (en) * 1994-03-17 2008-03-20 Israel Atomic Energy Comm Warheand with ejectable fragments
FR2918168B1 (fr) 2007-06-27 2009-08-28 Nexter Munitions Sa Procede de commande du declenchement d'un module d'attaque et dispositif mettant en oeuvre un tel procede.
DE102019007104B3 (de) 2019-10-14 2021-02-11 TDW Gesellschaft für verteidigungstechnische Wirksysteme mbH Splittergefechtskopf für einen Flugkörper

Family Cites Families (11)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE2322728C2 (de) * 1973-05-05 1982-09-23 Diehl GmbH & Co, 8500 Nürnberg Splitterhülle für Geschosse, Gefechtsköpfe, Wurfmunition
DE2536308C3 (de) * 1975-08-14 1980-09-11 Diehl Gmbh & Co, 8500 Nuernberg Splitterkörper für Splittergeschosse und -gefechtsköpfe
DE2539684C1 (de) * 1975-09-06 1985-10-10 Diehl GmbH & Co, 8500 Nürnberg Splitterhuelle fuer Geschosse,Gefechtskoepfe,Wurfmunition u.dgl.
SE404426B (sv) * 1977-05-26 1978-10-02 Foerenade Fabriksverken Skal bestaende av splitterkroppar med plana glidytor for en sprengladdning
SE450294B (sv) * 1984-04-02 1987-06-15 Bofors Ab Granatholje innefattande forformade splitter samt sett for dess tillverkning
SE459043B (sv) 1987-09-28 1989-05-29 Affarsverket Ffv Detonationskropp
DE3822817A1 (de) * 1988-07-06 1990-01-11 Rheinmetall Gmbh Splitterplatte vor einer sprengladung
DE3900442A1 (de) * 1989-01-10 1990-07-12 Diehl Gmbh & Co Bomblet
FR2647889B1 (fr) * 1989-06-02 1994-03-25 Thomson Brandt Armements Dispositif explosif a eclats prefragmentes et procede de realisation d'un tel dispositif
DE19517610C2 (de) 1995-05-13 1997-04-17 Diehl Gmbh & Co Lenkrakete mit einem Splittergefechtskopf
DE19638293A1 (de) * 1996-09-19 1998-03-26 Diehl Gmbh & Co Handgranate mit vorgefertigten Splittern

Also Published As

Publication number Publication date
EP1045222A2 (fr) 2000-10-18
EP1045222A3 (fr) 2001-07-25
DE50005760D1 (de) 2004-04-29
DE19917173A1 (de) 2000-10-19

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