EP0344224B1 - Manchon a fractionnement pour corps explosif metallique et procede de fabrication - Google Patents

Manchon a fractionnement pour corps explosif metallique et procede de fabrication Download PDF

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Publication number
EP0344224B1
EP0344224B1 EP88907598A EP88907598A EP0344224B1 EP 0344224 B1 EP0344224 B1 EP 0344224B1 EP 88907598 A EP88907598 A EP 88907598A EP 88907598 A EP88907598 A EP 88907598A EP 0344224 B1 EP0344224 B1 EP 0344224B1
Authority
EP
European Patent Office
Prior art keywords
separating cut
hollow body
casing according
separating
fragmentation casing
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
EP88907598A
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German (de)
English (en)
Other versions
EP0344224A1 (fr
Inventor
Karl Merz
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Individual
Original Assignee
Individual
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 Individual filed Critical Individual
Priority to AT88907598T priority Critical patent/ATE76186T1/de
Publication of EP0344224A1 publication Critical patent/EP0344224A1/fr
Application granted granted Critical
Publication of EP0344224B1 publication Critical patent/EP0344224B1/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
    • F42B3/00—Blasting cartridges, i.e. case and explosive
    • 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
    • F42B12/26—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 projectile wall being formed by a spirally-wound element
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B25—HAND TOOLS; PORTABLE POWER-DRIVEN TOOLS; MANIPULATORS
    • B25H—WORKSHOP EQUIPMENT, e.g. FOR MARKING-OUT WORK; STORAGE MEANS FOR WORKSHOPS
    • B25H3/00—Storage means or arrangements for workshops facilitating access to, or handling of, work tools or instruments

Definitions

  • the invention relates to a splinter jacket for an explosive body, in particular for a projectile, a grenade or a mine according to the preamble of patent claim 1.
  • the invention further relates to a method for producing such a splinter jacket.
  • a splinter jacket which consists of rings with a rectangular cross-section which are arranged on a support body and lie snugly against one another.
  • DE-U1-84 27 781.5 shows a warhead with cracks arranged in the warhead housing, which have arisen from grooves milled into the wall of the warhead housing by upsetting the warhead housing.
  • the invention has for its object to provide a splinter jacket of the type described above, which can be produced much more efficiently with considerably less work.
  • FIG. 1 The hollow cylinder 1 shown therein has constant wall thickness.
  • the separating cut 5 is carried out by a metal cutting device, for example by a laser or plasma cutting device.
  • the separating cut 5 can also be carried out in another way, for example by means of a mechanical cutting device.
  • the gap formed between the turns is shown greatly enlarged in FIG. 1 by pulling the turns 6 apart. In reality, the gap width when making the separating cut using a laser cutting device is only approximately 0.15-0.3 mm.
  • a small hole 7 with an at least approximately round cross section can be provided there.
  • the hollow cylinder 1 In the collapsed state, the hollow cylinder 1 is under a certain elastic tension. So that it remains in this state, it must be fixed in this state. This can be done in a simple manner by welding adjacent cutting edges of the separating cut 5, as is shown in FIG. 3. In FIG. 3, a weld seam made on the outer circumference and running continuously along the separating cut is designated by 8.
  • the hollow cylinder cut open by the separating cut becomes an inherently stable body which is directly suitable for receiving an explosive charge without further reinforcing elements.
  • FIG. 5 Another possibility of fixing the hollow cylinder in the collapsed state is to use a support sleeve.
  • a support sleeve In Fig. 5 an inner support sleeve 10 is shown.
  • the hollow cylinder 1 On the support sleeve, the hollow cylinder 1 is on the one hand by an outwardly projecting shoulder 11 of the support sleeve 10 in the right part of FIG. 5 and on the other hand by a web engaging in an internal groove 12 in the hollow cylinder on the support sleeve 10 in the left part of FIG. 5 fixed.
  • the support sleeve 10 preferably consists of a relatively easily deformable material, such as aluminum, and is pressed into the hollow cylinder under pressure (the material flowing into the groove in the hollow cylinder).
  • the support sleeve can also be designed as an outer sleeve (not shown).
  • the stability of the hollow cylinder 1 is substantially increased by the support sleeve 10.
  • the support sleeve 10 requires a certain volume by which an explosive device to be inserted into the hollow cylinder 1 must be made smaller.
  • the welding solution itself is therefore preferable.
  • FIG. 6 shows in section a hollow body 1, only half shown, according to FIG. 2, in which, however, the separating cut 5 is for the most part oriented obliquely to its surface. This can be used, for example, for spatial distribution the pressure wave arising during the detonation of the explosive device is taken into account.
  • FIG. 7 shows a hollow body, according to FIG. 2, in which, however, the separating cut 5 is partially zigzag-shaped or wavy. Such a configuration of the separating cut 5 achieves a certain toothing of the individual turns 6 which increases the stability of the hollow body.
  • FIG. 9 shows in section a hollow body 1, only half shown, according to FIG. 2, in which, however, the pitch of the turns 6 is not constant, but rather decreases from the center 4 towards the outside (towards the end parts 2, 3).
  • the spatial distribution of the pressure wave which arises during the detonation of the explosive device can also be taken into account in this way.
  • FIG. 10 shows a hollow body 1 according to FIG. 2, in which two helical, mutually non-overlapping separating cuts 5 ', 5 ⁇ are provided. It is also possible to make the separating cuts as single or multi-start screw lines. In addition, the separating cuts can be made with interruptions instead of the welded connections (8 or 9 in Fig. 7 or 8).
  • FIG. 11 shows a splinter jacket which is designed as a predominantly cylindrical sleeve 13 with a base part 14 designed as a fastening element for an ignition head.
  • a hollow body is preferably produced prior to the attachment of the separating cut 5 by hot and / or cold massive forming or in the deep-drawing process, the fastening element for the igniter head also being molded at the same time.
  • the separating cut 5 ends or begins at a distance from the left-hand opening of the bush on the one hand and from its bottom part 14 on the other hand.
  • grooves 15 and 16 tapering at an acute angle are incorporated as predetermined breaking points.
  • the grooves can be formed at the same time using the aforementioned manufacturing techniques. Instead of axially, the grooves can also run helically, for example. In general, they should run substantially perpendicular to the cut or cuts.
  • the design of the hollow body is in no way limited to hollow cylinders.
  • the invention can also be used without problems in the case of conical, frustoconical, spherical, egg-shaped, plate-shaped or grenade-shaped hollow bodies, an embodiment both with or without a support sleeve being possible.
  • the hollow bodies do not necessarily have to be rotationally symmetrical. Hollow bodies that are open, open only at one location or on one side or completely closed can be used at two locations.
  • the hollow body thus produced which is provided with a winding section, can also be used as a spring for other purposes, for example with appropriate thermal treatment. All materials can be used which can be cut using a suitable method.

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  • Engineering & Computer Science (AREA)
  • General Engineering & Computer Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Combustion & Propulsion (AREA)
  • Mechanical Engineering (AREA)
  • Perforating, Stamping-Out Or Severing By Means Other Than Cutting (AREA)
  • Arc Welding In General (AREA)
  • Helmets And Other Head Coverings (AREA)
  • Laser Beam Processing (AREA)
  • Pressure Welding/Diffusion-Bonding (AREA)
  • Disintegrating Or Milling (AREA)

Abstract

Le manchon d'une seule pièce (1) est divisé au moyen d'une découpure (5) en partie (4) destinée à se fractionner. La découpure est disposée de façon que le manchon se tienne d'une seule pièce, à cet effet les faces de la découpure de séparation sont amenées en contact et fixées l'une à l'autre.

Claims (16)

1. Manchon à fractionnement pour un corps explosif, notamment pour un projectile, un obus ou une mine, comprenant un corps creux qui est pourvu de points privilégiés de rupture, réalisé à symétrie de révolution autour d'un axe et, au moins par tronçons, cylindrique le long de cet axe et présentant plusieurs spires jointives en hélice, les faces latérales de spires voisines étant amenées et fiées en application mutuelle, caratérisé en ce que le corps creux (1) est constitué d'un corps initial creux en une pièce en forme de douille (13) essentiellement cylindrique et présentant une partie de fond (14) conçue comme élément de fixation pour une tête d'amorçage, le corps initial étant fendu dans au moins une partie par au moins une coupe de séparation hélicoïdale, s'étendant sur plusieurs spires et formant une fente de séparation, et la ou les coupes de séparation commençant ou se terminant à distance de l'élément de fixation précité et étant pratiqué-es de telle sorte que le corps initial continue à constituer une structure en une pièce.
2. Manchon à fractionnement selon la revendication 1, caractérisé en ce que les faces mutuellement voisines de la coupe de séparation sont amenées en application mutuelle par compression du corps creux.
3. Manchon à fractionnement selon la revendication 1 ou 2, caractérisé en ce que les faces de la coupe de séparation sont fixées en application mutuelle par soudage des bords intérieurs ou extérieurs de la coupe de séparation, ce soudage s'étendant de manière continue (8) ou discontinue (9) le long de la coupe de séparation.
4. Manchon à fractionnement selon l'une des revendications 1 à 3, caractérisé en ce que les faces de la coupe de séparation sont fixées en application mutuelle au moyen d'un corps de soutien creux (10), qui est inséré dans le corps creux ou qui l'entoure.
5. Manchon à fractionnement selon l'une des revendications 1 à 4, caractérisé en ce que le corps creux présente au moins une ouver ture, et en ce que la ou les coupes de séparation (5) commencent ou se terminent à distance d'au moins cette ouverture.
6. Manchon à fractionnement selon l'une des revendications 1 à 5, caractérisé en ce que la ou chaque coupe de séparation commence ou se termine dans un trou (7) de section au moins approximativement ronde.
7. Manchon à fractionnement selon l'une des revendications 1 à 6, caractérisé en ce que le pas des spires n'est pas constant mais, de préférence, diminue des deux côtés vers les extrémités de la coupe de séparation.
8. Manchon à fractionnement selon l'une des revendications 1 à 7, caractérisé en ce que la ou les coupes de séparation sont, au moins par tronçons, réalisées ondulées ou en zigzag.
9. Manchon à fractionnement selon l'une des revendications 1 à 8, caractérisé en ce la ou les coupes de séparation sont, au moins par tronçons, réalisées de telle sorte que les régions du corps creux situées de part et d'autre de la fente de séparation sont mutuellement assemblées par épousement de formes.
10. Manchon à fractionnement selon l'une des revendications 1 à 9, caractérisé en ce que la ou les coupes de séparation sont, au moins par tronçons, orientées perpendiculairement à la surface du corps creux.
11. Manchon à fractionnement selon l'une des revendications 1 à 10, caractérisé en ce que la ou les coupes de séparation sont, au moins par tronçons, orientées à angle oblique par rapport à la surface du corps creux.
12. Manchon à fractionnement selon l'une des revendications 1 à 11, caractérisé en ce que le corps creux est subdivisé par plusieurs coupes de séparation (5′, 5˝) qui, de préférence, sont hélicoïdales et de préférence encore, ne se recoupent pas.
13. Manchon à fractionnement selon l'une des revendications 1 à 12, caractérisé en ce que des gorges (15, 16) sont prévues comme points privilégiés de rupture sur la paroi intérieure ou sur la paroi extérieure du corps creux, de préférence sur la paroi intérieure, gorges qui, de préférence, se rétrécissent en pointe et s'étendent sensiblement perpendiculairement à la ou les coupes de séparation.
14. Manchon à fractionnement selon l'une des revendications 1 à 13, caractérisé en ce que des gorges (15, 16) sont prévues comme points privilégiés de rupture sur la paroi intérieure ou sur la paroi extérieure du corps creux, de préférence sur la paroi intérieure, gorges qui, de préférence, se rétrécissent en pointe, ces gorges, pour un corps creux à symétrie de révolution autour d'un axe, s'étendant en hélice autour de cet axe ou dans des plans de section axiale.
15. Procédé de fabrication d'un manchon à fractionnement selon l'une des revendications 1 à 14, caractérisé en ce que la ou les coupes de séparation sont réalisées par découpage par rayon laser ou au jet de plasma.
16. Procédé de fabrication d'un manchon à fractionnement selon l'une des revendications 1 et/ou 13 ou 14, caractérisé en ce qu'on fabrique des corps creux, avant de pratiquer la ou les coupes de séparation, par façonnage massif à froid et/ou à chaud ou par un procédé d'emboutissage-étirage, et en ce qu'on forme déjà alors l'élément de fixation pour la tête d'amorçage et/ou les gorges.
EP88907598A 1987-10-14 1988-09-09 Manchon a fractionnement pour corps explosif metallique et procede de fabrication Expired - Lifetime EP0344224B1 (fr)

Priority Applications (1)

Application Number Priority Date Filing Date Title
AT88907598T ATE76186T1 (de) 1987-10-14 1988-09-09 Splittermantel fuer metallische explosivkoerper sowie verfahren zu seiner herstellung.

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
CH4023/87 1987-10-14
CH402387 1987-10-14

Publications (2)

Publication Number Publication Date
EP0344224A1 EP0344224A1 (fr) 1989-12-06
EP0344224B1 true EP0344224B1 (fr) 1992-05-13

Family

ID=4268375

Family Applications (2)

Application Number Title Priority Date Filing Date
EP88810612A Pending EP0312491A1 (fr) 1987-10-14 1988-09-09 Enveloppe à fragmentation pour engin explosif métallique et son procédé de fabrication
EP88907598A Expired - Lifetime EP0344224B1 (fr) 1987-10-14 1988-09-09 Manchon a fractionnement pour corps explosif metallique et procede de fabrication

Family Applications Before (1)

Application Number Title Priority Date Filing Date
EP88810612A Pending EP0312491A1 (fr) 1987-10-14 1988-09-09 Enveloppe à fragmentation pour engin explosif métallique et son procédé de fabrication

Country Status (20)

Country Link
US (1) US5095821A (fr)
EP (2) EP0312491A1 (fr)
JP (1) JPH02501853A (fr)
KR (1) KR890701980A (fr)
CN (1) CN1032584A (fr)
AR (1) AR241668A1 (fr)
AT (1) ATE76186T1 (fr)
AU (1) AU2318588A (fr)
BR (1) BR8807247A (fr)
CA (1) CA1323800C (fr)
DE (1) DE3871140D1 (fr)
DK (1) DK249289A (fr)
ES (1) ES2033018T3 (fr)
FI (1) FI94672C (fr)
GR (1) GR3005383T3 (fr)
IL (1) IL87958A (fr)
NO (1) NO172953C (fr)
PT (1) PT88744B (fr)
WO (1) WO1989003500A1 (fr)
ZA (1) ZA887516B (fr)

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DE19960180B4 (de) * 1999-12-14 2006-03-09 Rheinmetall W & M Gmbh Verfahren zur Herstellung eines Sprenggeschosses
CH694473A5 (de) 2000-04-19 2005-01-31 Karl Merz Stahlmantel für eine Granate und Verfahren zu seiner Herstellung.
DE10130324B4 (de) * 2001-06-22 2005-03-24 TDW Gesellschaft für wehrtechnische Wirksysteme mbH Splittererzeugender Gefechtskopf
IL160500A (en) * 2004-02-20 2009-02-11 Rafael Advanced Defense Sys Method of retrofiting a munition for enhancing fragmentation effectiveness
US7093542B2 (en) * 2004-04-22 2006-08-22 Lockheed Martin Corporation Warhead with integral, direct-manufactured features
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JP5256078B2 (ja) * 2009-03-03 2013-08-07 株式会社Ｉｈｉエアロスペース 指向性りゅう弾
GB2469099B (en) * 2009-04-01 2013-01-23 Chemring Energetics Uk Ltd Explosive charge
DE102009047757B4 (de) * 2009-12-09 2011-09-15 Hoffmann & Co. Elektrokohle Ag Sensorelement für eine Sensorvorrichtung
JP5504902B2 (ja) * 2010-01-14 2014-05-28 日油株式会社 円筒状弾薬用の梱包容器
US9360284B1 (en) 2013-03-15 2016-06-07 Vista Outdoor Operations Llc Manufacturing process to produce metalurgically programmed terminal performance projectiles
AT515209B1 (de) 2014-03-14 2015-07-15 Hirtenberger Defence Systems Gmbh & Co Kg Geschoss
US10018453B1 (en) 2014-04-15 2018-07-10 Lockheed Martin Corporation Lightweight monolithic warhead and a method of manufacture
US9738947B1 (en) 2014-04-18 2017-08-22 The United States Of America As Represented By The Secretary Of The Navy Fragmentation device with increased surface hardness and a method of producing the same
US10578411B2 (en) * 2014-12-18 2020-03-03 Raytheon Company Explosive device with casing having voids therein
RU2627506C1 (ru) * 2016-04-18 2017-08-08 Роман Николаевич Серёгин Корпус боеприпаса
US10113846B2 (en) * 2016-07-07 2018-10-30 General Dynamics Ordnance and Tactical Systems-Canada, Inc. Systems and methods for reducing munition sensitivity
RU174290U1 (ru) * 2017-04-03 2017-10-10 Государственное научное учреждение "Институт порошковой металлургии" Осколочный элемент заданного дробления
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Also Published As

Publication number Publication date
WO1989003500A1 (fr) 1989-04-20
GR3005383T3 (fr) 1993-05-24
FI94672B (fi) 1995-06-30
ATE76186T1 (de) 1992-05-15
NO172953C (no) 1993-09-29
FI94672C (fi) 1995-10-10
IL87958A (en) 1992-11-15
JPH02501853A (ja) 1990-06-21
NO892461D0 (no) 1989-06-13
AR241668A1 (es) 1992-10-30
EP0312491A1 (fr) 1989-04-19
IL87958A0 (en) 1989-03-31
DK249289D0 (da) 1989-05-23
BR8807247A (pt) 1989-10-31
NO172953B (no) 1993-06-21
ZA887516B (en) 1989-08-30
US5095821A (en) 1992-03-17
EP0344224A1 (fr) 1989-12-06
AU2318588A (en) 1989-05-02
ES2033018T3 (es) 1993-03-01
PT88744B (pt) 1994-01-31
FI892722A0 (fi) 1989-06-02
NO892461L (no) 1989-06-13
PT88744A (pt) 1989-07-31
DE3871140D1 (de) 1992-06-17
FI892722A (fi) 1989-06-02
CN1032584A (zh) 1989-04-26
CA1323800C (fr) 1993-11-02
KR890701980A (ko) 1989-12-22
DK249289A (da) 1989-05-23

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