EP3111158A1 - Projectile à déformation enduit - Google Patents

Projectile à déformation enduit

Info

Publication number
EP3111158A1
EP3111158A1 EP15708460.9A EP15708460A EP3111158A1 EP 3111158 A1 EP3111158 A1 EP 3111158A1 EP 15708460 A EP15708460 A EP 15708460A EP 3111158 A1 EP3111158 A1 EP 3111158A1
Authority
EP
European Patent Office
Prior art keywords
lead
bullet
projectile
pressing
blank
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Withdrawn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
EP15708460.9A
Other languages
German (de)
English (en)
Inventor
Bernd Krause
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
Original Assignee
RUAG Ammotec GmbH
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 RUAG Ammotec GmbH filed Critical RUAG Ammotec GmbH
Publication of EP3111158A1 publication Critical patent/EP3111158A1/fr
Withdrawn legal-status Critical Current

Links

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
    • F42B12/34—Projectiles, missiles or mines characterised by the warhead, the intended effect, or the material characterised by the warhead or the intended effect expanding before or on impact, i.e. of dumdum or mushroom type
    • 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
    • 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
    • F42B12/76—Projectiles, missiles or mines characterised by the warhead, the intended effect, or the material characterised by the material of the casing
    • F42B12/78—Projectiles, missiles or mines characterised by the warhead, the intended effect, or the material characterised by the material of the casing of jackets for smallarm bullets ; Jacketed bullets or projectiles
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F42—AMMUNITION; BLASTING
    • F42B—EXPLOSIVE CHARGES, e.g. FOR BLASTING, FIREWORKS, AMMUNITION
    • F42B30/00—Projectiles or missiles, not otherwise provided for, characterised by the ammunition class or type, e.g. by the launching apparatus or weapon used
    • F42B30/02—Bullets
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F42—AMMUNITION; BLASTING
    • F42B—EXPLOSIVE CHARGES, e.g. FOR BLASTING, FIREWORKS, AMMUNITION
    • F42B33/00—Manufacture of ammunition; Dismantling of ammunition; Apparatus therefor

Definitions

  • the invention relates to a method for producing a deformation shell, consisting of a bullet core of lead in a Tombakmantel.
  • the invention has for its object to provide a method for producing a deformation projectile, with which the performance of the projectile, such as precision, deformation and energy transfer in the target medium can be set.
  • a homogeneous bullet core is to be created, the structure of which includes a "predetermined breaking point" in the central axis of the projectile.
  • the production of the bonded blank takes place consisting of a bullet core made of lead in a tombak jacket.
  • a firm connection is made between the lead core, or the core of the bullet and the tomban jacket. With bonding is always meant soldering.
  • the introduction of a pre-damage into the lead of the blank is carried out by pressing a displaceable on the central axis of the blank punch in the lead and remove the punch again.
  • this preliminary damage parameters: depth, diameter, shape of the punch
  • the deformation capacity of the projectile is determined. Furthermore, will be
  • the final pressing of the blank takes place in the final shape of the deformation bullet with outer longitudinal grooves on the ogive and a rear inner cone, wherein the final pressing a pressing force greater than 7,000 N ver - is used.
  • the pressure exerted influences the flow of the lead. The higher the force, the further the lead is beyond the edge of the mantle. Weapon function and deformation behavior are influenced by this "lead edge.”
  • the pressing step carried out in the second process stage b produces the preliminary damage by creating a cavity in the lead core or in the projectile core.
  • This two-stage process results in a homogeneous core with a microstructure in the central axis of the bullet, which achieves homogeneity at a pressing force of 7000 N.
  • the pressing force typically between 10,000 N and 30,000 N
  • the lead will be different pressed far into the nose of the bullet.
  • a lead made of CuZn3-CuZn15 is used as lead and lead as Tombakmantel.
  • a cylindrical punch having a front tip is preferably used.
  • the following parameters a Depth, number, length of the outer longitudinal grooves on the ogive
  • Press force when pressing the final shape of the deformation bullet set the precision and effect of the bullet.
  • a rear inner cone has been formed in the projectile. The selected shape of the projectile tail with the rear-inner cone serves to optimize the core compression and improves the precision of the projectile.
  • a deformation projectile according to the invention with a bullet core made of lead in a tombak jacket, with outer longitudinal grooves on the ogive and with a rear inner cone produced by the method just described, is characterized by a homogeneous projectile core whose structure in the center axis of the projectile is a predetermined breaking point includes.
  • the invention describes a bonded (soldered) deformation bullet 1, preferably in the caliber 9 mm, consisting of the combination of pure lead, which is soldered in a Tombakmantel (CuZn3 - CuZn15).
  • the production process of the projectile is conducted in at least three stages. By combining these production steps and their parameters, the performance of the projectile, such as precision, deformation and energy transfer in the target medium, are set.
  • the first manufacturing stage is the production of the bonded blank 4.
  • a firm connection between the lead core and Tombakmantel 4 is made.
  • Figure 1 shows a bonded blank 4, consisting of the Tombakmantel 4 and arranged in Tombakmantel 4 lead core or lead 9, which is soldered to the Tombakmantel 4.
  • Figure 2 shows the bonded blank with pre-damage introduced according to Figure 1.
  • a cylindrical punch 10 with a front tip 11 was inserted into the lead Lead 9 pressed and after the
  • the deformation capacity of the projectile 1 is determined. Furthermore, air pockets that are formed during bonding are reduced. With bonding is always meant soldering.
  • the third method step see FIG. 3, the final shape of the projectile 1 is pressed with the outer longitudinal grooves 5 of the ogive and with a rear inner cone 6. This manufacturing step can also be broken down into sub-steps.
  • the pressure exerted influences the flow of the lead. The higher the force, the further the lead is beyond the edge of the mantle.
  • Figure 4 shows a finished deformation bullet 1 in section, in which worked with a large pressing force. Significantly, the lead edge 8 can be seen. In the finished bullet a rear inner cone 6 has been pressed.
  • Figure 5 shows a finished deformation bullet 1 in section, in which worked with a smaller pressing force. There is no lead sand available.
  • FIG. 6 shows a bonded deformation bullet 1 according to the invention after soft target firing.
  • the Tombakmantel 3 has not detached from the bullet core or lead core. However, the Tombakmantel 3 is mushroomed. From Tombakmantel 3 no parts have been solved.
  • the invention thus describes a deformation projectile in which the precision and effect of the projectile is set by the combination of the abovementioned three features.
  • this combinatorics is shown on a 9 mm pistol bullet. bonding process
  • the variation of the shell wall thickness can also influence the target ballistic effect.
  • the cavity in the lead core (see FIG. 2) inserted in a first pressing step, introducing the pre-damage, is closed again during final pressing (see FIGS. 4 and 5) of the projectile.
  • This two - stage process results in a homogeneous projectile core whose structure is in the middle axis of the Homogeneity is achieved at a pressing force of about 7,000 N.
  • the pressing force typically between 10,000 N and 30,000 N
  • the lead is pressed into the projectile nose to different extents.
  • FIGS. 7 show four deformation projectiles 1 according to the invention after final pressing as a top view from above of the ogive. These bullets differ from each other only by the force used in the final pressing.
  • FIGS. 8 a, b, c, d show the same four deformation projectiles according to the invention after final pressing as FIG. 7, seen only laterally from above. In all figures, the different tips of the Ogiven are clearly visible.
  • FIG. 9a shows the projectile casing and FIG. 9b shows the lead core, each in section.
  • bullet jacket or Tombakmantel 3 and projectile core 2 are firmly connected.
  • FIG. 9c shows the formed blank 4 after the first pressing in which the preliminary damage has been introduced. Subsequently, by pressing, preferably in only one pressing operation, both the ogive with the longitudinal grooves 5, or folds (notches) and the rear inner cone 6 are pressed.
  • FIG. 9d shows the finished projectile in section and FIG. 9e shows a plan view from above of the ogive. bullet tail
  • the selected shape of the projectile tail with the rear inner cone 6 serves to optimize the core compression and improves the precision of the projectile.
  • Sheath wall thickness (0.2-0.5 mm depending on the caliber up to 3 mm)
  • Sheath material copper or copper alloy
  • Bonding process (heating temperature, heating time, cooling time, flux)

Landscapes

  • Engineering & Computer Science (AREA)
  • General Engineering & Computer Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Combustion & Propulsion (AREA)
  • Physics & Mathematics (AREA)
  • Thermal Sciences (AREA)
  • Manufacturing & Machinery (AREA)
  • Powder Metallurgy (AREA)
  • Aiming, Guidance, Guns With A Light Source, Armor, Camouflage, And Targets (AREA)

Abstract

L'invention concerne un procédé de fabrication d'un projectile à déformation (1), constitué d'un noyau de projectile (2) en plomb (9) placé dans une enveloppe de tombac (3). Selon l'invention pour pouvoir ajuster les performances du projectile, telles que la précision, la déformation et le transfert d'énergie dans le milieu cible et créer un noyau de projectile homogène dont la structure contient dans l'axe central du projectile un point de rupture prédéterminé, le procédé comprend les étapes suivantes consistant à a. produire une enveloppe de tombac (3) en forme de coupelle, introduire du plomb (9) dans l'enveloppe de tombac (3) et souder le plomb (9) à l'enveloppe de tombac (3) pour produire une ébauche (4), b. introduire une pré-endommagement dans le plomb (9) de l'ébauche (4) par enfoncement d'un poinçon (10), apte à coulisser sur l'axe central (7) de l'ébauche (4), dans le plomb (9) et retirer le poinçon (10), c. effectuer une compression finale sur l'ébauche (4) pour conférer la forme définitive au projectile à déformation (1) avec des rainures longitudinales extérieures (5) sur l'ogive et un cône intérieur arrière 6, une force de pression supérieure à 7000 N étant utilisé lors de la compression finale.
EP15708460.9A 2014-02-25 2015-02-24 Projectile à déformation enduit Withdrawn EP3111158A1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE102014002441 2014-02-25
PCT/EP2015/053853 WO2015128331A1 (fr) 2014-02-25 2015-02-24 Projectile à déformation enduit

Publications (1)

Publication Number Publication Date
EP3111158A1 true EP3111158A1 (fr) 2017-01-04

Family

ID=52630336

Family Applications (1)

Application Number Title Priority Date Filing Date
EP15708460.9A Withdrawn EP3111158A1 (fr) 2014-02-25 2015-02-24 Projectile à déformation enduit

Country Status (5)

Country Link
US (1) US9885552B2 (fr)
EP (1) EP3111158A1 (fr)
CA (1) CA2940332A1 (fr)
WO (1) WO2015128331A1 (fr)
ZA (1) ZA201605929B (fr)

Families Citing this family (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US11268791B1 (en) 2014-05-23 2022-03-08 Vista Outdoor Operations Llc Handgun cartridge with shear groove bullet
US11808551B2 (en) 2015-07-23 2023-11-07 Federal Cartridge Company Cartridge with improved penetration and expansion bullet
US9863746B2 (en) * 2015-07-23 2018-01-09 Vista Outdoor Operations Llc Cartridge with improved penetration and expansion bullet
DE102017011359A1 (de) * 2017-12-08 2019-06-13 Ruag Ammotec Gmbh Intermediat zum Fertigen von Projektilen eines Deformationsgeschosses, Projektil, deformiertes Projektil, Werkzeug zum Fertigen des Intermediats und Verfahren zum Herstellen des Intermediats
CN109974539B (zh) * 2019-04-30 2019-11-08 四川大学 多列偏心压紧弹片粘结装置及粘结方法
WO2023018744A1 (fr) * 2021-08-09 2023-02-16 Federal Cartridge Company Balle présentant des perfectionnements de chemise

Family Cites Families (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB189904426A (en) * 1899-02-28 1899-04-29 Hugh William Gabbett-Fairfax Improvements in and relating to Projectiles for Fire-arms.
US2045964A (en) * 1934-12-13 1936-06-30 Berlin Karlsruher Ind Werke Ag Casing projectile
US5357866A (en) * 1993-08-20 1994-10-25 Remington Arms Company, Inc. Jacketed hollow point bullet and method of making same
US5621186A (en) 1995-09-20 1997-04-15 Trophy Bonded Bullets, Inc. Bullet
AT405977B (de) * 1996-04-24 2000-01-25 Winter Udo Mag Ing Expansionsgeschoss
US6546875B2 (en) 2001-04-23 2003-04-15 Ut-Battelle, Llc Non-lead hollow point bullet
US6581503B1 (en) 2002-03-13 2003-06-24 Alliant Techsystems Inc. Method of manufacturing a soft point bullet

Non-Patent Citations (2)

* Cited by examiner, † Cited by third party
Title
None *
See also references of WO2015128331A1 *

Also Published As

Publication number Publication date
US9885552B2 (en) 2018-02-06
WO2015128331A1 (fr) 2015-09-03
US20160363424A1 (en) 2016-12-15
CA2940332A1 (fr) 2015-09-03
ZA201605929B (en) 2017-11-29

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