EP0997700A1 - Balle chemisée ne nuisant pas à l'environment et son procédé de fabrication - Google Patents

Balle chemisée ne nuisant pas à l'environment et son procédé de fabrication Download PDF

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Publication number
EP0997700A1
EP0997700A1 EP98203670A EP98203670A EP0997700A1 EP 0997700 A1 EP0997700 A1 EP 0997700A1 EP 98203670 A EP98203670 A EP 98203670A EP 98203670 A EP98203670 A EP 98203670A EP 0997700 A1 EP0997700 A1 EP 0997700A1
Authority
EP
European Patent Office
Prior art keywords
lubricant
bullet
tungsten
core
pressed
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.)
Withdrawn
Application number
EP98203670A
Other languages
German (de)
English (en)
Inventor
Olivier Dr. Ing. Chène
Carl Dr. Phys. Hug
Rémy Dipl. Ing. Künstle
Hans Schwendimann
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.)
SM Schweizerische Munitionsunternehmung AG
Original Assignee
SM Schweizerische Munitionsunternehmung 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 SM Schweizerische Munitionsunternehmung AG filed Critical SM Schweizerische Munitionsunternehmung AG
Priority to EP98203670A priority Critical patent/EP0997700A1/fr
Priority to AU60755/99A priority patent/AU6075599A/en
Priority to EP99947175A priority patent/EP1125093B1/fr
Priority to AT99947175T priority patent/ATE239206T1/de
Priority to PCT/CH1999/000491 priority patent/WO2000026605A1/fr
Priority to DE59905360T priority patent/DE59905360D1/de
Publication of EP0997700A1 publication Critical patent/EP0997700A1/fr
Withdrawn legal-status Critical Current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
    • F42B12/72—Projectiles, missiles or mines characterised by the warhead, the intended effect, or the material characterised by the material
    • F42B12/74—Projectiles, missiles or mines characterised by the warhead, the intended effect, or the material characterised by the material of the core or solid body

Definitions

  • the present invention relates to a method for the production of a low-emission shell bullet the preamble of the patent claim as well as to an after this Processed bullet.
  • This method has the disadvantage of being costly thermal process control and is therefore for ordnance ammunition too expensive. Furthermore, the density can be of the projectile only within narrow limits; is also dimensional stability due to temperature fluctuations the high proportion of plastic in the core, insufficient.
  • the projectile created according to this procedure should be compared with an existing and so far in large series manufactured bullet (Ordonnance ammunition 5.6 mm GP90) same weight, same outer geometry, an identical indoor and outdoor ballistics and the same Have breakthrough performance. Furthermore, the dimension should of the projectile also in a wide temperature range must be preserved and - of course - must all requirements of the Hague Convention through the substitute product also be fulfilled.
  • the projectile should be liquid-tight his; Manufacturing tolerances should be due to the design of the floor can be compensated.
  • the projectile according to the invention can be started by a known gravimetric dosing of the tungsten powder and the lubricant and lubricant in its mass exactly and set reproducibly.
  • Calcium stearate mixed intimately, has proven particularly useful with tungsten powder, which when pressed at room temperature a one-piece body is created that holds together; the in claim 4 alternatively enumerated substances are also suitable.
  • the weight percentage specified in claim 5 is optimal, he prevents the pre-compact from breaking apart removal from the press mold and when inserting it into the Bullet jacket.
  • the final pressing takes place according to claim 7 with higher Printing, preferably in the range of 400 MPa.
  • the pressure when pressing the core material must be above 350 MPa, preferably 400 MPa.
  • a leveling and sealing compound according to claim 9 has the advantage that a liquid-tight rear part arises, and that even small manufacturing tolerances with it are compensable.
  • Tin has proven itself because it is under pressure flows easily and thus a completely form-fitting Missile body results.
  • materials according to claim 11 are used, if an absolutely heavy metal-free projectile is required is.
  • a floor is denoted by 100, which has a jacket 1 and a flattened tip 2.
  • a core 8 in the Inside, there is a core 8.
  • the jacket 1 is in his Middle part 3 cylindrical and goes in its rear part 4 sharp-edged into a truncated cone 5.
  • a circumferential gag groove 7 At the upper end of the middle part 3 there is a circumferential gag groove 7, which is used to attach the usual cartridge case.
  • a leveling and sealing compound 9 with a material leveling serving concave crowning 6 is provided.
  • the jacket 1 is in a known manner (according to EP -A- 0106411) made of plated steel.
  • the core 8 consists of a Mixture of tungsten powder and calcium stearate; the balancing and sealing compound 9 made of soft tin.
  • the projectile 100 is produced in a very simple manner and economical way:
  • the shell is like the well-known ordnance ammunition usual by deep drawing a bowl from plated Steel creates. After squeezing it onto the provisional one
  • the length of the core 8 is used in the form of a pre-compact and pressed it with 400 MPa. After that the preformed leveling and sealing compound is inserted and shaped and flared the rear part 4. Finally the gag groove 7 is embossed and the projectile is finished calibrated.
  • the pre-compact is made by intimately mixing 97% by weight Tungsten powder and 3% by weight calcium stearate and subsequent Molding presses generated at a pressure of 300 MPa. Both components are commercially available, with the tungsten powder one with an average grain size of 5 ⁇ m as very useful for setting a lead corresponding Has proven density.
  • the mixture of tungsten powder and the powdered Lubricants and lubricants also in the bullet jacket, exactly dosed and pressed there, with pressures of 400 at least in a last pressing MPa can be applied.
  • the subject of the invention has exactly the same flight dynamic Properties like the previous one to be replaced, leaded ordnance ammunition and causes them, resulting in intensive target practice environmental and Health problems not.
  • the manufacturing process described can basically with the previous equipment and the same staff take place like conventional bullet production.

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  • Engineering & Computer Science (AREA)
  • Physics & Mathematics (AREA)
  • Thermal Sciences (AREA)
  • Chemical & Material Sciences (AREA)
  • Combustion & Propulsion (AREA)
  • General Engineering & Computer Science (AREA)
  • Powder Metallurgy (AREA)
  • Lubricants (AREA)
  • Laminated Bodies (AREA)
  • Preparation Of Compounds By Using Micro-Organisms (AREA)
  • Acyclic And Carbocyclic Compounds In Medicinal Compositions (AREA)
EP98203670A 1998-10-30 1998-10-30 Balle chemisée ne nuisant pas à l'environment et son procédé de fabrication Withdrawn EP0997700A1 (fr)

Priority Applications (6)

Application Number Priority Date Filing Date Title
EP98203670A EP0997700A1 (fr) 1998-10-30 1998-10-30 Balle chemisée ne nuisant pas à l'environment et son procédé de fabrication
AU60755/99A AU6075599A (en) 1998-10-30 1999-10-18 Production of a low-polluting jacketed bullet
EP99947175A EP1125093B1 (fr) 1998-10-30 1999-10-18 Production d'une balle chemisee pauvre en substances nocives
AT99947175T ATE239206T1 (de) 1998-10-30 1999-10-18 Herstellung eines schadstoffarmen mantelgeschosses
PCT/CH1999/000491 WO2000026605A1 (fr) 1998-10-30 1999-10-18 Production d'une balle chemisee pauvre en substances nocives
DE59905360T DE59905360D1 (de) 1998-10-30 1999-10-18 Herstellung eines schadstoffarmen mantelgeschosses

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
EP98203670A EP0997700A1 (fr) 1998-10-30 1998-10-30 Balle chemisée ne nuisant pas à l'environment et son procédé de fabrication

Publications (1)

Publication Number Publication Date
EP0997700A1 true EP0997700A1 (fr) 2000-05-03

Family

ID=8234280

Family Applications (2)

Application Number Title Priority Date Filing Date
EP98203670A Withdrawn EP0997700A1 (fr) 1998-10-30 1998-10-30 Balle chemisée ne nuisant pas à l'environment et son procédé de fabrication
EP99947175A Expired - Lifetime EP1125093B1 (fr) 1998-10-30 1999-10-18 Production d'une balle chemisee pauvre en substances nocives

Family Applications After (1)

Application Number Title Priority Date Filing Date
EP99947175A Expired - Lifetime EP1125093B1 (fr) 1998-10-30 1999-10-18 Production d'une balle chemisee pauvre en substances nocives

Country Status (5)

Country Link
EP (2) EP0997700A1 (fr)
AT (1) ATE239206T1 (fr)
AU (1) AU6075599A (fr)
DE (1) DE59905360D1 (fr)
WO (1) WO2000026605A1 (fr)

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2005017443A1 (fr) * 2003-08-05 2005-02-24 Ruag Ammotec Gmbh Projectile a desagregation partielle a double noyau
WO2005017442A1 (fr) * 2003-08-05 2005-02-24 Ruag Ammotec Gmbh Projectile a desagregation partielle comprenant un noyau massif et un noyau en poudre comprimee
US8141494B2 (en) 2003-08-05 2012-03-27 Ruag Ammotec Gmbh Partial decomposition with a massive core and core made of pressed powder
US8578856B2 (en) 2003-08-05 2013-11-12 Ruag Ammotec Gmbh Partial decomposition projectile with a double core
CN103575169A (zh) * 2013-11-13 2014-02-12 北京科技大学 一种高比重高硬度霰弹枪圆柱形弹丸的制造方法

Citations (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2292047A (en) * 1939-03-18 1942-08-04 Remington Arms Co Inc Ammunition
US3888636A (en) * 1971-02-01 1975-06-10 Us Health High density, high ductility, high strength tungsten-nickel-iron alloy & process of making therefor
EP0106411A2 (fr) 1982-10-18 1984-04-25 Schweizerische Eidgenossenschaft vertreten durch die Eidg. Munitionsfabrik Thun der Gruppe für Rüstungsdienste Munition de petit calibre et son procédé de fabrication
EP0315393A2 (fr) * 1987-10-31 1989-05-10 Michael Ernest Saxby Balles d'entraînement ou de signalisation
DE3835808A1 (de) * 1988-10-21 1990-04-26 Rheinmetall Gmbh Verfahren zur herstellung von hartkerngeschossen
EP0641836A2 (fr) 1993-09-06 1995-03-08 John Christopher Gardner Matériau avec haute densité
WO1996041112A2 (fr) * 1995-06-07 1996-12-19 Lockheed Martin Energy Systems, Inc. Enveloppe pour projectiles et explosifs sans plomb protegeant l'environnement
WO1997027447A1 (fr) * 1996-01-25 1997-07-31 Remington Arms Company, Inc. Projectile desintegrant sans plomb
US5789698A (en) * 1997-01-30 1998-08-04 Cove Corporation Projectile for ammunition cartridge

Patent Citations (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2292047A (en) * 1939-03-18 1942-08-04 Remington Arms Co Inc Ammunition
US3888636A (en) * 1971-02-01 1975-06-10 Us Health High density, high ductility, high strength tungsten-nickel-iron alloy & process of making therefor
EP0106411A2 (fr) 1982-10-18 1984-04-25 Schweizerische Eidgenossenschaft vertreten durch die Eidg. Munitionsfabrik Thun der Gruppe für Rüstungsdienste Munition de petit calibre et son procédé de fabrication
EP0315393A2 (fr) * 1987-10-31 1989-05-10 Michael Ernest Saxby Balles d'entraînement ou de signalisation
DE3835808A1 (de) * 1988-10-21 1990-04-26 Rheinmetall Gmbh Verfahren zur herstellung von hartkerngeschossen
EP0641836A2 (fr) 1993-09-06 1995-03-08 John Christopher Gardner Matériau avec haute densité
WO1996041112A2 (fr) * 1995-06-07 1996-12-19 Lockheed Martin Energy Systems, Inc. Enveloppe pour projectiles et explosifs sans plomb protegeant l'environnement
WO1997027447A1 (fr) * 1996-01-25 1997-07-31 Remington Arms Company, Inc. Projectile desintegrant sans plomb
US5789698A (en) * 1997-01-30 1998-08-04 Cove Corporation Projectile for ammunition cartridge

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2005017443A1 (fr) * 2003-08-05 2005-02-24 Ruag Ammotec Gmbh Projectile a desagregation partielle a double noyau
WO2005017442A1 (fr) * 2003-08-05 2005-02-24 Ruag Ammotec Gmbh Projectile a desagregation partielle comprenant un noyau massif et un noyau en poudre comprimee
US8141494B2 (en) 2003-08-05 2012-03-27 Ruag Ammotec Gmbh Partial decomposition with a massive core and core made of pressed powder
US8578856B2 (en) 2003-08-05 2013-11-12 Ruag Ammotec Gmbh Partial decomposition projectile with a double core
CN103575169A (zh) * 2013-11-13 2014-02-12 北京科技大学 一种高比重高硬度霰弹枪圆柱形弹丸的制造方法

Also Published As

Publication number Publication date
ATE239206T1 (de) 2003-05-15
EP1125093B1 (fr) 2003-05-02
AU6075599A (en) 2000-05-22
WO2000026605A1 (fr) 2000-05-11
EP1125093A1 (fr) 2001-08-22
DE59905360D1 (de) 2003-06-05

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