EP1766322B1 - Hard core jacketed bullet comprising an illuminant composition, and method for the production thereof - Google Patents

Hard core jacketed bullet comprising an illuminant composition, and method for the production thereof Download PDF

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Publication number
EP1766322B1
EP1766322B1 EP05758705A EP05758705A EP1766322B1 EP 1766322 B1 EP1766322 B1 EP 1766322B1 EP 05758705 A EP05758705 A EP 05758705A EP 05758705 A EP05758705 A EP 05758705A EP 1766322 B1 EP1766322 B1 EP 1766322B1
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EP
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Prior art keywords
bore
core
jacket
opening
hard
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EP05758705A
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German (de)
French (fr)
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EP1766322A1 (en
Inventor
Heinz Riess
Erich Muskat
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.)
RWS GmbH
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RUAG Ammotec GmbH
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Publication of EP1766322A1 publication Critical patent/EP1766322A1/en
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    • 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
    • F42B12/36—Projectiles, missiles or mines characterised by the warhead, the intended effect, or the material characterised by the warhead or the intended effect for dispensing materials; for producing chemical or physical reaction; for signalling ; for transmitting information
    • F42B12/38—Projectiles, missiles or mines characterised by the warhead, the intended effect, or the material characterised by the warhead or the intended effect for dispensing materials; for producing chemical or physical reaction; for signalling ; for transmitting information of tracer type

Definitions

  • the invention relates to a hard core shell projectile with flare and a method for its preparation.
  • Tracer bullets are bullets that contain a set of flares that is ignited on launch, allowing it to track the trajectory of the projectiles due to its burnup. Especially during nighttime shooting, tracer bullets make it easier to track the target and sight.
  • the flare is located in a arranged in the longitudinal axis of the projectile bore in the projectile core. If the projectile is a mantle projectile, the mantle in the rear of the projectile must be open in the area of the opening of the bore. In this case, the opening must be designed so that the resulting gas during combustion of the flare gas can not get between the shell and core and ruptured by the resulting gas pressure of the mantle or even separated from the core. Damage to the mantle or gas slippage negatively affect the trajectory of the projectile and lead to misses.
  • the object of the present invention is to ensure a gastight seal between the shell and the core in the case of a hard core shell projectile with flare in the region of the opening of the hole for the flare.
  • the object is achieved according to the invention in that after pulling the shell on the core of the jacket in the rear of the projectile, the bottom of the shell, in the center of the opening of the hole for the flare is pierced by means of a provided with a conical tip punch and when immersing of the punch in the bore of the shell material is pressed uniformly against the wall of the hole. The jacket is therefore not just bent over the edge of the hole.
  • the process is similar to reshaping.
  • the material of the lying in the rear of the sleeve Soil, which is thicker than the mantle, is pushed into the bore by means of the punch, so that the drawing or forming process begins and the strength of the extending into the bore bottom significantly reduced, the opening to the bore is formed.
  • the diameter of the punch for the production of the opening is adapted to the wall thickness, which must have the pressed against the wall of the bore material of the shell to withstand the expected gas pressure and not be infiltrated by the gas.
  • the wall thickness of the pressed against the wall of the bore material is between 0.1 mm and 1.5 mm, depending on the occurring gas pressure, which may be about 3500 bar to 4000 bar.
  • the hard core shell 1 comprises a core 2, which is enclosed in its cylindrical, the leadership of the projectile in the barrel serving part 3 of a jacket 4.
  • a flare 7 which is preceded by an ignition charge 9 in the direction of the rear 8 of the projectile 1.
  • the opening 10 to the bore 6 in the bottom 11 of the shell 4 is closed by a cover 12.
  • the bore 6 is stepped.
  • the area 13 of the bore 6 in the rear 8 of the hard core, in which the material of the bottom 11 is pressed in, has a diameter 14 which is widened by approximately the wall thickness of the displaced material 15.
  • the opening 10 has the same diameter 16 as the bore 6, whereby the pressing of the flare 7 and the ignition charge 9 is facilitated.
  • the hard core shell projectile with flare invention is easy to produce.
  • the tightness between the shell and core in the opening to the hole for the flare is achieved without soldering, solely by the interference fit of the displaced to the wall of the bore material of the soil during the piercing of the hole in the ground by means of a similar processing forming step.
  • the method of making the opening in the bottom of the shell shell is applicable to all calibers.

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  • Engineering & Computer Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Combustion & Propulsion (AREA)
  • General Engineering & Computer Science (AREA)
  • Molds, Cores, And Manufacturing Methods Thereof (AREA)
  • Adornments (AREA)
  • Manufacture Of Porous Articles, And Recovery And Treatment Of Waste Products (AREA)
  • Stringed Musical Instruments (AREA)
  • Gasket Seals (AREA)
  • Polymerisation Methods In General (AREA)
  • Insulated Conductors (AREA)
  • Non-Portable Lighting Devices Or Systems Thereof (AREA)
  • Perforating, Stamping-Out Or Severing By Means Other Than Cutting (AREA)

Abstract

The aim of the invention is to gas-tightly join a jacket to a core of a hard core jacketed bullet comprising an illuminant composition in the area of the hole of the bore in the core to accommodate the illuminant composition. Said aim is achieved by pressing the material (15) of the bottom (11) of the jacket (4), which is displaced when the hole (10) is formed, against the wall of the hole by means of a reshaping process in the area of the hole (10).

Description

Die Erfindung betrifft ein Hartkern-Mantelgeschoss mit Leuchtsatz und ein Verfahren zu seiner Herstellung.The invention relates to a hard core shell projectile with flare and a method for its preparation.

Leuchtspurgeschosse sind Geschosse, die einen Leuchtsatz enthalten, der beim Abschuss gezündet wird und aufgrund seines Abbrands ermöglicht, die Flugbahn der Geschosse zu verfolgen. Insbesondere beim nächtlichen Schießen erleichtern Leuchtspurgeschosse das Erfassen des Ziels und das Anvisieren.Tracer bullets are bullets that contain a set of flares that is ignited on launch, allowing it to track the trajectory of the projectiles due to its burnup. Especially during nighttime shooting, tracer bullets make it easier to track the target and sight.

Der Leuchtsatz befindet sich in einer in der Längsachse des Geschosses angeordneten Bohrung im Geschosskern. Ist das Geschoss ein Mantelgeschoss, muss der Mantel im Heckbereich des Geschosses im Bereich der Öffnung der Bohrung offen sein. Dabei muss die Öffnung so gestaltet sein, dass das beim Abbrand des Leuchtsatzes entstehende Gas nicht zwischen Mantel und Kern gelangen kann und durch den entstehenden Gasdruck der Mantel aufreißt oder gar vom Kern getrennt wird. Eine Beschädigung des Mantels oder ein Gasschlupf beeinflussen die Flugbahn des Geschosses negativ und führen zu Fehlschüssen.The flare is located in a arranged in the longitudinal axis of the projectile bore in the projectile core. If the projectile is a mantle projectile, the mantle in the rear of the projectile must be open in the area of the opening of the bore. In this case, the opening must be designed so that the resulting gas during combustion of the flare gas can not get between the shell and core and ruptured by the resulting gas pressure of the mantle or even separated from the core. Damage to the mantle or gas slippage negatively affect the trajectory of the projectile and lead to misses.

Aus der österreichischen Patentschrift 84321 ist ein Spurzeigergeschoss bekannt, dessen Leuchtsatz sich in einer Hülse befindet, die, nach hinten offen, in eine Bohrung des Geschosskerns eingesetzt ist. Damit beim Abschuss des Geschosses kein Gas zwischen Hülse und Mantel gelangt und die Hülse aufreisst, ist über den etwas nach auswärts gebogenen hinteren Rand der Hülse der Rand des Mantels gebördelt. Der Rand des Mantels ragt in die Hülse hinein.From the Austrian patent 84321 is a track pointer bullet known whose flare is located in a sleeve which, open at the back, is inserted into a bore of the bullet core. So that no gas gets between the sleeve and jacket during firing of the projectile and the sleeve ruptures, the rim of the jacket is crimped over the slightly outwardly bent rear edge of the sleeve. The edge of the jacket protrudes into the sleeve.

Aufgabe der vorliegenden Erfindung ist es, bei einem Hartkern-Mantelgeschoss mit Leuchtsatz im Bereich der Öffnung der Bohrung für den Leuchtsatz einen gasdichten Abschluss zwischen dem Mantel und dem Kern zu gewährleisten.The object of the present invention is to ensure a gastight seal between the shell and the core in the case of a hard core shell projectile with flare in the region of the opening of the hole for the flare.

Die Lösung der Aufgabe erfolgt erfindungsgemäß dadurch, dass nach Aufziehen des Mantels auf den Kern der Mantel im Heckbereich des Geschosses, der Boden des Mantels, im Mittelpunkt der Öffnung der Bohrung für den Leuchtsatz mittels eines mit einer kegelförmigen Spitze versehenen Stempels angestochen wird und beim Eintauchen des Stempels in die Bohrung der Mantelwerkstoff gleichmäßig gegen die Wand der Bohrung gepresst wird. Der Mantel wird also nicht nur über die Kante der Bohrung umgebogen. Der Vorgang ist dem Umformen vergleichbar. Der Werkstoff des im Heckbereich der Hülse liegenden Bodens, der dicker ist als der Mantel, wird mittels des Stempels in die Bohrung hineingeschoben, so dass der Zieh- oder Umformvorgang beginnt und sich die Stärke des in die Bohrung hineinreichenden Bodens wesentlich verringert, wobei die Öffnung zur Bohrung entsteht. Die Dichtigkeit gegen die Gase erfolgt bereits, wenn der Werkstoff auf etwa einem Millimeter Länge an die Wandung der Bohrung hineingedrückt worden ist. Selbst beim exzentrischen Einreissen des Mantels ist die Dichtigkeit noch gewährleistet und führt zu keinem Gasschlupf. Es ist an der Öffnung kein Verlöten des Mantels mit dem Kern erforderlich.The object is achieved according to the invention in that after pulling the shell on the core of the jacket in the rear of the projectile, the bottom of the shell, in the center of the opening of the hole for the flare is pierced by means of a provided with a conical tip punch and when immersing of the punch in the bore of the shell material is pressed uniformly against the wall of the hole. The jacket is therefore not just bent over the edge of the hole. The process is similar to reshaping. The material of the lying in the rear of the sleeve Soil, which is thicker than the mantle, is pushed into the bore by means of the punch, so that the drawing or forming process begins and the strength of the extending into the bore bottom significantly reduced, the opening to the bore is formed. The seal against the gases already takes place when the material has been pressed to about one millimeter in length to the wall of the bore. Even with the eccentric tearing of the shell, the tightness is still guaranteed and does not lead to gas slippage. It is not necessary to solder the jacket to the core at the opening.

Der Durchmesser des Stempels zur Herstellung der Öffnung ist auf die Wandstärke abgestimmt, die der an die Wand der Bohrung gepresste Werkstoff des Mantels aufweisen muss, um den zu erwartenden Gasdruck standzuhalten und nicht vom Gas unterwandert zu werden. Die Wandstärke des an die Wand der Bohrung gepressten Werkstoffs liegt zwischen 0,1 mm und 1,5 mm, in Abhängigkeit von dem auftretenden Gasdruck, der etwa 3500 bar bis 4000 bar betragen kann.The diameter of the punch for the production of the opening is adapted to the wall thickness, which must have the pressed against the wall of the bore material of the shell to withstand the expected gas pressure and not be infiltrated by the gas. The wall thickness of the pressed against the wall of the bore material is between 0.1 mm and 1.5 mm, depending on the occurring gas pressure, which may be about 3500 bar to 4000 bar.

Anhand eines figürlich dargestellten Ausführungsbeispiels wird die Erfindung erläutert und ihre Vorteile gegenüber dem Stand der Technik dargelegt.Reference to a figuratively illustrated embodiment, the invention will be explained and set forth its advantages over the prior art.

Das Hartkern-Mantelgeschoss 1 umfasst einen Kern 2, der in seinem zylindrischen, der Führung des Geschosses im Lauf dienenden Teil 3 von einem Mantel 4 umschlossen ist. In einer zentrisch zur Geschossachse 5 verlaufenden Bohrung 6 befindet sich ein Leuchtsatz 7, dem in Richtung zum Heck 8 des Geschosses 1 ein Anzündsatz 9 vorgelagert ist. Die Öffnung 10 zur Bohrung 6 im Boden 11 des Mantels 4 wird durch eine Deckel 12 verschlossen.The hard core shell 1 comprises a core 2, which is enclosed in its cylindrical, the leadership of the projectile in the barrel serving part 3 of a jacket 4. In a bore 6 extending centrally to the projectile axis 5 there is a flare 7, which is preceded by an ignition charge 9 in the direction of the rear 8 of the projectile 1. The opening 10 to the bore 6 in the bottom 11 of the shell 4 is closed by a cover 12.

Wie aus der Figur ersichtlich, ist die Bohrung 6 abgestuft. Der Bereich 13 der Bohrung 6 im Heck 8 des Hartkerns, in den der Werkstoff des Bodens 11 hineingepresst wird, hat einen Durchmesser 14 der jeweils um etwa die Wandstärke des verdrängten Werkstoffs 15 erweitert ist. Dadurch hat die Öffnung 10 den gleichen Durchmesser 16 wie die Bohrung 6, wodurch das Einpressen des Leuchtsatzes 7 und des Anzündsatzes 9 erleichtert wird.As can be seen from the figure, the bore 6 is stepped. The area 13 of the bore 6 in the rear 8 of the hard core, in which the material of the bottom 11 is pressed in, has a diameter 14 which is widened by approximately the wall thickness of the displaced material 15. As a result, the opening 10 has the same diameter 16 as the bore 6, whereby the pressing of the flare 7 and the ignition charge 9 is facilitated.

Außerdem wird verhindert, dass die Ränder des in den Bereich 13 verdrängten Mantelwerkstoffs 15 eine Angriffsfläche für die Gase bilden, die beim Abbrand der pyrotechnischen Ladungen 7 und 9 entstehen.In addition, it is prevented that the edges of the displaced in the region 13 sheath material 15 form an attack surface for the gases that arise during the combustion of the pyrotechnic charges 7 and 9.

Weiterhin hat das Heck 17 des Hartkems 2 innen und außen abgerundete Ränder 18 im Bereich der Öffnung 10. Dadurch wird verhindert, dass bei der Bildung der Öffnung 10 im Boden 13 des Mantels 4 der durch den Umformvorgang über den inneren Rand 18 fließende Werkstoff abreißt.Furthermore, the rear 17 of the hard core 2 inside and outside rounded edges 18 in the region of the opening 10. This prevents that in the formation of the opening 10 in the bottom 13 of the shell 4 of the material flowing through the forming process on the inner edge 18 tearing off material.

Das erfindungsgemäße Hartkern-Mantelgeschoss mit Leuchtsatz ist einfach herzustellen. Die Dichtigkeit zwischen Mantel und Kern im Bereich der Öffnung zur Bohrung für den Leuchtsatz wird ohne Löten erreicht, allein durch den Presssitz des an die Wand der Bohrung verdrängten Werkstoff des Bodens beim Einstechen des Lochs in den Boden mittels eines dem Umformen vergleichbaren Bearbeitungsschritts.The hard core shell projectile with flare invention is easy to produce. The tightness between the shell and core in the opening to the hole for the flare is achieved without soldering, solely by the interference fit of the displaced to the wall of the bore material of the soil during the piercing of the hole in the ground by means of a similar processing forming step.

Das Verfahren zur Herstellung der Öffnung in dem Boden des Geschossmantels ist für alle Kaliber anwendbar.The method of making the opening in the bottom of the shell shell is applicable to all calibers.

Claims (7)

  1. A hard-core jacketed bullet having a tracer composition that is loaded into a bore of the core, characterized in that in the region of the opening (10) to the bore (6) in the hard core (2) for receiving the tracer composition (7) the material (15) of the base (11) that is displaced into the bore (6) during the creation of the opening (10) in the base (11) of the jacket (4) by forming is pressed against the wall of the bore, simultaneously reducing the wall thickness of the base (11).
  2. A hard-core jacketed bullet according to claim 1, characterized in that the bore (6) in the region of the opening (10) has a widened region (13) for receiving the material (15) of the base (11) of the jacket (4) that is displaced during the production of the opening (10).
  3. A hard-core jacketed bullet according to claim 2, characterized in that the diameter (15) of the widened region (13) is greater by twice the wall thickness of the displaced material (15) of the jacket (4) than the diameter (16) of the bore (6).
  4. A hard-core jacketed bullet according to one of claims 1 to 3, characterized in that the wall thickness of the displaced material (15) is between 0.1 mm and 1.5 mm depending on the gas pressure that occurs.
  5. A hard-core jacketed bullet according to one of claims 1 to 4, characterized in that the diameter of the bore (6) and the diameter in the region of the opening (10) are of equal size.
  6. A method of manufacturing a hard-core jacketed bullet having a tracer composition that is loaded into a bore of the core according to one of claims 1 to 5, characterized in that after mounting of the jacket onto the core the jacket in the rear region of the bullet, the base of the jacket, is broached in the centre of the opening of the bore for the tracer composition by means of a punch provided with a conical tip and that during engagement of the punch into the bore the jacket material is displaced by means of an operation comparable to forming and is pressed uniformly against the wall of the bore, simultaneously reducing the wall thickness of the base.
  7. A method according to claim 6, characterized in that it is usable for all calibres.
EP05758705A 2004-07-08 2005-06-28 Hard core jacketed bullet comprising an illuminant composition, and method for the production thereof Active EP1766322B1 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE102004033017A DE102004033017A1 (en) 2004-07-08 2004-07-08 Hard core shell with flare and process for its production
PCT/EP2005/006941 WO2006005439A1 (en) 2004-07-08 2005-06-28 Hard core jacketed bullet comprising an illuminant composition, and method for the production thereof

Publications (2)

Publication Number Publication Date
EP1766322A1 EP1766322A1 (en) 2007-03-28
EP1766322B1 true EP1766322B1 (en) 2009-04-01

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EP05758705A Active EP1766322B1 (en) 2004-07-08 2005-06-28 Hard core jacketed bullet comprising an illuminant composition, and method for the production thereof

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US (1) US7661368B2 (en)
EP (1) EP1766322B1 (en)
AT (1) ATE427474T1 (en)
DE (2) DE102004033017A1 (en)
DK (1) DK1766322T3 (en)
ES (1) ES2325125T3 (en)
NO (1) NO338240B1 (en)
WO (1) WO2006005439A1 (en)

Families Citing this family (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE102004036148A1 (en) * 2004-07-24 2006-02-16 Ruag Ammotec Gmbh Hard core bullet with penetrator
DE102011018475A1 (en) * 2011-04-21 2012-10-25 Rwm Schweiz Ag Apparatus and method for airtight covering a tracer or the like
US9772171B2 (en) * 2015-03-24 2017-09-26 Patrick C Henry, III Method of modifying ammunition classification
SE538646C2 (en) * 2015-04-01 2016-10-11 Nammo Vanäsverken Ab Track light projectile and method of applying a track light device to a track light projectile
US10422613B2 (en) 2016-12-01 2019-09-24 Battelle Memorial Institute Illuminants and illumination devices
BR112019011338A2 (en) 2016-12-01 2019-10-15 Battelle Memorial Institute self-shining materials, tracing ammunition and lighting devices
US10557696B2 (en) 2016-12-01 2020-02-11 Battelle Memorial Institute Self-glowing materials and tracer ammunition
EP3701215B1 (en) * 2017-10-26 2024-04-17 Spectra Technologies LLC Explosive ordnance cold assembly process
WO2020068288A2 (en) * 2018-08-13 2020-04-02 Ammo Technologies, Inc. Methods of mass-producing luminescent projectiles and luminescent projectiles mass-produced thereby
DE102020102159A1 (en) 2020-01-29 2021-07-29 Ruag Ammotec Gmbh METHOD AND DEVICE FOR CHECKING THE COMBUSTION OF A LIGHT SET OF A LIGHT PLATE LIGHT, IGNITION UNIT FOR LIGHTING A LIGHT SET OF A LIGHT PLATE AND SYSTEM

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Publication number Priority date Publication date Assignee Title
AT84321B (en) * 1916-12-19 1921-06-10 Chemische Producten Und Zuendk Marker bullet.
DE332279C (en) * 1918-01-12 1921-01-28 Conrad Claessen Dr Incendiary and tracer bullet with visible trajectory for infantry rifles
US1432669A (en) * 1918-11-18 1922-10-17 Wallace L Clay Armor-piercing and tracer bullet
FR622797A (en) * 1926-01-30 1927-06-07 Projectile with visible trajectory
US2115047A (en) * 1936-11-30 1938-04-26 Stevenson Thomas Tracer ammunition and to an igniter mixture for tracer compositions
BE498540A (en) * 1949-10-07
US2958287A (en) * 1954-07-16 1960-11-01 Jean L Auxier Projectile
US3013495A (en) * 1959-07-10 1961-12-19 Stevenson Thomas Spotter-tracer projectile
US3262390A (en) * 1964-05-29 1966-07-26 Olin Mathieson Tracer shotshell
FR2057590A5 (en) * 1969-08-29 1971-05-21 France Etat Disintegratable tracer practice shell for - armoured vehicles
US5714707A (en) * 1996-05-13 1998-02-03 Talon Manufacturing Company, Inc. Process and apparatus for demilitarization of small caliber primed cartridge cases

Also Published As

Publication number Publication date
DE502005007004D1 (en) 2009-05-14
EP1766322A1 (en) 2007-03-28
NO338240B1 (en) 2016-08-08
DK1766322T3 (en) 2009-07-27
ATE427474T1 (en) 2009-04-15
US20080196617A1 (en) 2008-08-21
WO2006005439A1 (en) 2006-01-19
DE102004033017A1 (en) 2006-02-09
ES2325125T3 (en) 2009-08-26
NO20070740L (en) 2007-02-08
US7661368B2 (en) 2010-02-16

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