EP0108741B1 - Verfahren zur Herstellung eines Splitterkörpers - Google Patents

Verfahren zur Herstellung eines Splitterkörpers Download PDF

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Publication number
EP0108741B1
EP0108741B1 EP19830890176 EP83890176A EP0108741B1 EP 0108741 B1 EP0108741 B1 EP 0108741B1 EP 19830890176 EP19830890176 EP 19830890176 EP 83890176 A EP83890176 A EP 83890176A EP 0108741 B1 EP0108741 B1 EP 0108741B1
Authority
EP
European Patent Office
Prior art keywords
shrapnel
splinters
filled
internal body
interspace
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
EP19830890176
Other languages
German (de)
English (en)
French (fr)
Other versions
EP0108741A1 (de
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/de
Application granted granted Critical
Publication of EP0108741B1 publication Critical patent/EP0108741B1/de
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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 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 ear 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 can also have different shapes, each of them as a single batch, e.g. Spheres with pyramids.
  • the splinters are removed by pressurizing the inner body, the inner sleeve, e.g.
  • 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.
  • EP-A-0 012 323 discloses a splinter body 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, and wherein the inner body is tapered at least at one end and is connected to the hollow body (8) by pressure rolling. Such a method is relatively complex and requires high forces.
  • EP-A-0 012 322 discloses a further method for producing splinter bodies, an annular recess being provided in a cylindrical or hollow cylindrical inner body, in which the splinters are arranged, over which a further hollow cylinder forming the projectile jacket is then pushed.
  • the splinters are embedded in the cylinders by forging. The forging must be carried out in such a way that a simultaneous, possibly all-round deformation of a ring section is to be carried out.
  • a further method for producing a splinter body is known, a base being screwed into a cylindrical projectile jacket body, after which a cylinder sleeve is introduced 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 method for producing splinter bodies of this type with a single-layer or multi-layer row of splinters, it not being necessary to wrap the splinters on all sides in order to securely position them in the projectile. 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 hollow body is deformed in accordance with the desired space and the space is filled with the fragments, after which the inner body in radial direction, in particular with a pressure medium, optionally with simultaneous axial compression.
  • the hollow body at one end up to Deformation of the inner body, whereupon the splinters are introduced can be worked without an additional insert body, so that the number of splinters can be increased with the same weight of the projectile.
  • 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 which is tapered at least at one end, is introduced into a tube forming the hollow body and positioned therein, whereupon the tube is held at at least one, preferably at both ends, a particularly simple method is given, at the same time starting from tube pieces can and it was quite surprising that pipe sections, which are subject to different cold deformation, have no adverse behavior when subjected to explosive pressurization, for example Size of the resulting splinters, etc.
  • 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 inserted into a tube with a larger diameter, which is to form the outer hollow body, and in this, e.g. through a shape.
  • 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 e.g.
  • the outer body is also arranged in a shape so that it acts against deformation of the outer body and can absorb the forces.
  • the annular filler opening is then closed by necking in 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 tapered 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 with a total length of the splinter body of 360 mm of 5 mm, the thickness of the outer jacket being 2 mm.
  • steels with a tensile strength of at least 700 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 Verfahren zur Herstellung eines Splitterkörpers Expired EP0108741B1 (de)

Applications Claiming Priority (2)

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

Publications (2)

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

Family

ID=3554970

Family Applications (1)

Application Number Title Priority Date Filing Date
EP19830890176 Expired EP0108741B1 (de) 1982-10-11 1983-10-10 Verfahren zur Herstellung eines Splitterkörpers

Country Status (4)

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

Cited By (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

Families Citing this family (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE3525147C1 (de) * 1985-07-13 1987-01-15 Diehl Gmbh & Co Sturz-Flugkoerper zum Bekaempfen von insbesondere Radarstellungen
EP0253058B1 (de) * 1986-07-15 1990-06-27 Rheinmetall GmbH Unterkalibriges Geschoss
SE459043B (sv) * 1987-09-28 1989-05-29 Affarsverket Ffv Detonationskropp
SG82583A1 (en) * 1997-04-23 2001-08-21 Diehl Stiftung & Co Fragmentation body for a fragmentation projectile
SE518526C2 (sv) * 2000-07-03 2002-10-22 Bofors Weapon Sys Ab För ammunitionsenhet avsedd laddningsenhet
SE522935C2 (sv) * 2000-07-03 2004-03-16 Bofors Defence Ab Anordning för att anpassa ammunitionsenhet för olika typer av mål och situationer
SE545386C2 (sv) 2021-05-19 2023-07-25 Bae Systems Bofors Ab Metod för framställning av en komponent för en stridsdel

Family Cites Families (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE2129196C3 (de) * 1971-06-12 1975-11-13 Fa. Diehl, 8500 Nuernberg Splitterkörper für Splittergeschosse und -gefechtskopfe
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
DE2852658A1 (de) * 1978-12-06 1980-06-12 Diehl Gmbh & Co Verfahren zur herstellung metallischer formkoerper
DE2852659A1 (de) * 1978-12-06 1980-06-19 Diehl Gmbh & Co Verfahren zur herstellung metallischer formkoerper

Cited By (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

Also Published As

Publication number Publication date
AT382236B (de) 1987-01-26
ATA375582A (de) 1986-06-15
EP0108741A1 (de) 1984-05-16
DE3370859D1 (en) 1987-05-14
GR78674B (enrdf_load_stackoverflow) 1984-09-27

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