EP0108741A1 - Procédé de fabrication d'un corps d'éclats - Google Patents

Procédé de fabrication d'un corps d'éclats Download PDF

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Publication number
EP0108741A1
EP0108741A1 EP19830890176 EP83890176A EP0108741A1 EP 0108741 A1 EP0108741 A1 EP 0108741A1 EP 19830890176 EP19830890176 EP 19830890176 EP 83890176 A EP83890176 A EP 83890176A EP 0108741 A1 EP0108741 A1 EP 0108741A1
Authority
EP
European Patent Office
Prior art keywords
inner body
splinters
hollow body
splinter
filled
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
EP19830890176
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German (de)
English (en)
Other versions
EP0108741B1 (fr
Inventor
Gerd Dr. Tomazic
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.)
Vereinigte Edelstahlwerke AG
Original Assignee
Vereinigte Edelstahlwerke AG
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 Vereinigte Edelstahlwerke AG filed Critical Vereinigte Edelstahlwerke AG
Publication of EP0108741A1 publication Critical patent/EP0108741A1/fr
Application granted granted Critical
Publication of EP0108741B1 publication Critical patent/EP0108741B1/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
    • F42B12/20—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 present invention relates to a splinter body and to a method for producing a splinter body.
  • a splinter body for splinter projectiles and warheads which has a projectile jacket, which serves as an outer shell, and an inner tube body.
  • the cylindrical cavity formed between these two bodies is covered with splinters e.g. made of hard metal or ceramic.
  • splinters can have a spherical shape, but also have different shapes, each being a uniform mixture, e.g. Spheres with pyramids.
  • the fragments are removed by pressurizing the inner body, the inner sleeve, e.g. by explosion forming, electromagnetically or by driving a conical calibration bolt or the like, pressed outwards, the splinters being enclosed on both sides in both tubular bodies.
  • This method also has the advantage that a plurality of layers of fragments are provided, in which case a further inner shell is then provided for each splinter layer and the fragments are fully embedded in the material of the shells after the inner body (s) have been pressurized.
  • a further method for producing a splinter body is known, a base being screwed into a cylindrical shell body, after which a cylinder sleeve is inserted into the interior. The cavity between the shell and the inner sleeve is then filled with the fragments. The distance between the inner wall of the shell and the outer wall of the inner sleeve corresponds approximately to that of the spherical splinters.
  • the splinters are now fixed in such a way that, for example, the interior is pressurized with a hydraulic fluid, so that they are made of a soft material, e.g. Aluminum, existing inner sleeve is deformed so that the splinters are partially enveloped.
  • splinter bodies and the associated processes all have in common that they are only suitable for producing splinter bodies which provide an essentially cylindrical arrangement of the splinters, i.e. there is no possibility of arranging the splinters in a tapering area and the methods are relatively complex, in particular if the splinters are to be covered on all sides by the jacket material of the inner sleeve, the splinters can break and then these sections no longer have the desired kinetic energy when the splinter body explodes.
  • the object of the present invention is to provide an easy-to-carry out process for the production of such splinter bodies with one or more layers To create a series of splinters, whereby all-round covering of the splinters is not required for the safe positioning of the same on the floor. This safe positioning of the fragments in the floor is of particular importance for the ballistic properties.
  • Another object of the invention is that simply shaped bodies, in particular pipe sections, can be used as starting products for carrying out the method.
  • the method according to the invention for producing a splinter body wherein a preformed inner body is introduced into a hollow body, in particular the shell, and at least partially the space thus formed is filled with the desired amount of splinters and the inner body is expanded in the radial direction and the adjacent body
  • Surrounding splinters at least partially consists essentially in that the inner body, which is tapered at least at one end, in particular at both ends, is introduced into the hollow body, whereupon the latter is deformed in accordance with the desired space and the space is filled with the fragments, after which the inner body is radial Direction, especially with a pressure medium, possibly with simultaneous axial compression, is expanded.
  • the center of gravity of the projectile can be determined in a particularly simple manner by choosing the splinters. If balls are used as splinters, the diameter of which is equal to the distance between the hollow body and the inner body, these balls will have a lower bulk density than if smaller balls were used. There is also the possibility that, for example, other shapes can be used instead of the balls, in which case other densest bulk densities are also given.
  • the intermediate space can be filled with splinters in multiple layers in relation to the radial direction, the splinters not being destroyed even when there is no intermediate sleeve.
  • a particularly preferred embodiment of the present invention consists in that the inner body is formed from a cylindrical tube by drawing in the ends.
  • the inner body has the surprising property that, despite different deformations, in particular cold deformation when pressurized and bursting, it has homogeneous properties.
  • the inner body tapered at least at one end is introduced into a tube forming the hollow body and into the Sem positioned, whereupon the tube is at least at one, preferably at both ends, is a particularly easy to perform method, it can be assumed at the same time from pipe sections and it was quite surprising that pipe sections that are subject to different cold deformation, with explosive Pressurization has no adverse behavior, such as the size of the splinters, etc.
  • the splinter body according to the invention with an inner body and a hollow body, in particular forming the projectile jacket, the space formed between them being at least partially filled with splinters consists essentially in that the inner body tapers at least at one end, and with the hollow body by soldering, welding or the like. is connected.
  • Such a splinter body can not only have a cylindrical layer of splinters, but can also have such splinters in the tapered part.
  • those parts which are usually provided for screw connections or the like can be replaced by weight by further splitters. It has been shown completely surprisingly that neither the weld seam nor the heat exposure caused by it affects the behavior after the detonation of the explosive charge and thus the desired comminution of the projectile.
  • the inner body has an internal thread at one end, it is particularly easy to mount stabilizing fins or the igniter. Furthermore, the different material thickness of the inner and outer body is taken into account particularly favorably, since, as is known per se, the inner body should have a greater material thickness than the outer body, since the inner body is only allowed to burst in the event of an explosion after the greatest possible pressure has been built up, so that the under pressure gases cause the splinters to act at high speed.
  • the outer body should have the smallest possible wall thickness so that the energy of the splinters is not used to destroy the outer shell, but rather that the splinters can leave their position with the highest possible energy.
  • Fig. 1 shows a schematic representation of the individual steps, whereas in Fig. 2 the section through a splinter body is shown.
  • a cylindrical tube is formed into a desired inner body by necking with a shape at both ends, and then an internal thread is cut at both ends.
  • This inner body is then introduced into a tube with a larger diameter, which is to form the outer hollow body, and is positioned therein, for example by a mold.
  • the outer tube is then also held in a mold, with this being deformed at one end until it lies against the inner body, whereas the deformation at the other end is only carried out until an annular gap is released.
  • the fragments are now introduced through this annular gap.
  • the inner body is then closed pressure-tight at both ends with movable stamps.
  • a pressure medium for example with a pressure of 700 bar, is now introduced into the interior of the inner body, the two ends of the inner body being pressed against one another at the same time, so that in addition to the radial expansion, the inner body is shortened.
  • the outer body is also arranged in a shape so that it acts against deformation of the outer body and can absorb the forces. Then the annular filling opening closed by necking the outer hollow body, whereupon the inner body is connected to the hollow body by circular welds.
  • the splinter body shown in FIG. 2 has an inner body 1 which projects at both ends 2 and 3 beyond the outer hollow body 4.
  • the outer hollow body 4 is also necked in at its two ends 5, 6 and lies against the ends 2, 3 of the inner body and is connected to them by welds 7, 8.
  • the intermediate space 9, which is formed by the spaced-apart inner body and outer hollow body formed from tubes, is filled with splinters 10, 11, 12. If, for example, the cylindrical area of the intermediate space is only filled with large balls 11 as fragments, then by filling the tapering areas at one or the other end with smaller size splinters, the center of gravity of the entire projectile can be shifted in one of these two directions.
  • a different bulk density of the splinters can, however, not only be achieved by the different sizes, but also by different shapes and also by using different materials. However, it is essential that the filling of the different fragments takes place in such a way that a rotationally symmetrical structure of the splinter body can be achieved in each case.
  • the inner body 1 has threads 13, 14 at its two ends which can be used for fastening, for example an igniter and stabilizing fins.
  • the inner body can have a wall thickness of 5 mm, the thickness of the outer jacket being 2 mm.
  • steels with a tensile strength of at least 7 00 N / mm 2 are suitable as the material for the inner and outer sheath.

Landscapes

  • Engineering & Computer Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Combustion & Propulsion (AREA)
  • General Engineering & Computer Science (AREA)
  • Shaping Metal By Deep-Drawing, Or The Like (AREA)
  • Aiming, Guidance, Guns With A Light Source, Armor, Camouflage, And Targets (AREA)
EP19830890176 1982-10-11 1983-10-10 Procédé de fabrication d'un corps d'éclats Expired EP0108741B1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
AT375582A AT382236B (de) 1982-10-11 1982-10-11 Verfahren zur herstellung eines splitterkoerpers und danach hergestellter splitterkoerper
AT3755/82 1982-10-11

Publications (2)

Publication Number Publication Date
EP0108741A1 true EP0108741A1 (fr) 1984-05-16
EP0108741B1 EP0108741B1 (fr) 1987-04-08

Family

ID=3554970

Family Applications (1)

Application Number Title Priority Date Filing Date
EP19830890176 Expired EP0108741B1 (fr) 1982-10-11 1983-10-10 Procédé de fabrication d'un corps d'éclats

Country Status (4)

Country Link
EP (1) EP0108741B1 (fr)
AT (1) AT382236B (fr)
DE (1) DE3370859D1 (fr)
GR (1) GR78674B (fr)

Cited By (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2179125A (en) * 1985-07-13 1987-02-25 Diehl Gmbh & Co Warhead
DE3822375A1 (de) * 1987-09-28 1989-04-20 Affarsverket Ffv Detonationskoerper
EP0253058B1 (fr) * 1986-07-15 1990-06-27 Rheinmetall GmbH Projectile à calibre réduit
US5979332A (en) * 1997-04-23 1999-11-09 Diehl Stiftung & Co. Fragmentation body for a fragmentation projectile
WO2002003017A1 (fr) * 2000-07-03 2002-01-10 Bofors Defence Ab Cone de charge modulaire pour munitions, pour missiles notamment
WO2002003015A1 (fr) * 2000-07-03 2002-01-10 Bofors Defence Ab Dispositif d'adaptation d'une unite de munition pour differents types de cibles et de situations
SE2100078A1 (sv) * 2021-05-19 2022-11-20 Bae Systems Bofors Ab Stridsdel
RU2794586C1 (ru) * 2022-11-11 2023-04-21 Российская Федерация, от имени которой выступает Государственная корпорация по атомной энергии "Росатом" (Госкорпорация "Росатом") Способ изготовления корпуса осколочно-фугасного заряда

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
RU2160881C2 (ru) * 1989-06-29 2000-12-20 Государственное унитарное предприятие "Государственное научно-производственное предприятие "Сплав" Боеприпас осколочного действия

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CH543064A (de) * 1971-07-08 1973-10-15 Oerlikon Buehrle Ag Geschoss mit kugelförmigen, unter sich gleich grossen Projektilen, Verfahren zu dessen Herstellung und Vorrichtung zur Durchführung des Verfahrens
DE2129196B2 (fr) * 1971-06-12 1975-04-03 Fa. Diehl, 8500 Nuernberg
EP0012322A1 (fr) * 1978-12-06 1980-06-25 DIEHL GMBH & CO. Procédé pour fabriquer des produits métalliques, notamment des projectiles, en incorporant des particules distinctes dans une masse d'enrobage métallique
EP0012323A1 (fr) * 1978-12-06 1980-06-25 DIEHL GMBH & CO. Procédé pour fabriquer des produits métalliques, notamment des projectiles, en incorporant des particules distinctes dans une masse d'enrobage métallique

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE2129196B2 (fr) * 1971-06-12 1975-04-03 Fa. Diehl, 8500 Nuernberg
CH543064A (de) * 1971-07-08 1973-10-15 Oerlikon Buehrle Ag Geschoss mit kugelförmigen, unter sich gleich grossen Projektilen, Verfahren zu dessen Herstellung und Vorrichtung zur Durchführung des Verfahrens
EP0012322A1 (fr) * 1978-12-06 1980-06-25 DIEHL GMBH & CO. Procédé pour fabriquer des produits métalliques, notamment des projectiles, en incorporant des particules distinctes dans une masse d'enrobage métallique
EP0012323A1 (fr) * 1978-12-06 1980-06-25 DIEHL GMBH & CO. Procédé pour fabriquer des produits métalliques, notamment des projectiles, en incorporant des particules distinctes dans une masse d'enrobage métallique

Cited By (16)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2179125A (en) * 1985-07-13 1987-02-25 Diehl Gmbh & Co Warhead
GB2179125B (en) * 1985-07-13 1989-07-19 Diehl Gmbh & Co Warhead
EP0253058B1 (fr) * 1986-07-15 1990-06-27 Rheinmetall GmbH Projectile à calibre réduit
DE3822375A1 (de) * 1987-09-28 1989-04-20 Affarsverket Ffv Detonationskoerper
US5979332A (en) * 1997-04-23 1999-11-09 Diehl Stiftung & Co. Fragmentation body for a fragmentation projectile
SG82583A1 (en) * 1997-04-23 2001-08-21 Diehl Stiftung & Co Fragmentation body for a fragmentation projectile
US7066093B2 (en) 2000-07-03 2006-06-27 Bae Systems Bofors Ab Modular warhead for units of ammunition such as missiles
WO2002003015A1 (fr) * 2000-07-03 2002-01-10 Bofors Defence Ab Dispositif d'adaptation d'une unite de munition pour differents types de cibles et de situations
WO2002003017A1 (fr) * 2000-07-03 2002-01-10 Bofors Defence Ab Cone de charge modulaire pour munitions, pour missiles notamment
US7127995B2 (en) 2000-07-03 2006-10-31 Bae Systems Bofors Ab Device for adapting a unit of ammunition for different types of targets and situations
SE2100078A1 (sv) * 2021-05-19 2022-11-20 Bae Systems Bofors Ab Stridsdel
WO2022245264A1 (fr) * 2021-05-19 2022-11-24 Bae Systems Bofors Ab Procédé de fabrication d'un composant de tête explosive
SE545386C2 (sv) * 2021-05-19 2023-07-25 Bae Systems Bofors Ab Metod för framställning av en komponent för en stridsdel
US12276486B2 (en) 2021-05-19 2025-04-15 Bae Systems Bofors Ab Method for producing a warhead component
RU2794586C1 (ru) * 2022-11-11 2023-04-21 Российская Федерация, от имени которой выступает Государственная корпорация по атомной энергии "Росатом" (Госкорпорация "Росатом") Способ изготовления корпуса осколочно-фугасного заряда
RU2837186C1 (ru) * 2024-02-28 2025-03-26 Акционерное общество "Научно-производственное объединение "Прибор" имени С.С. Голембиовского" Способ изготовления боевой части осколочно-фугасной авиабомбы

Also Published As

Publication number Publication date
EP0108741B1 (fr) 1987-04-08
GR78674B (fr) 1984-09-27
DE3370859D1 (en) 1987-05-14
AT382236B (de) 1987-01-26
ATA375582A (de) 1986-06-15

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