US20220390214A1 - Penetrator and use of a penetrator - Google Patents

Penetrator and use of a penetrator Download PDF

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Publication number
US20220390214A1
US20220390214A1 US17/888,211 US202217888211A US2022390214A1 US 20220390214 A1 US20220390214 A1 US 20220390214A1 US 202217888211 A US202217888211 A US 202217888211A US 2022390214 A1 US2022390214 A1 US 2022390214A1
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United States
Prior art keywords
penetrator
main core
predetermined breaking
breaking point
rear part
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.)
Abandoned
Application number
US17/888,211
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English (en)
Inventor
Stefan Thiesen
Michael Gowin
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.)
Rheinmetall Waffe Munition GmbH
Original Assignee
Rheinmetall Waffe Munition GmbH
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Filing date
Publication date
Application filed by Rheinmetall Waffe Munition GmbH filed Critical Rheinmetall Waffe Munition GmbH
Publication of US20220390214A1 publication Critical patent/US20220390214A1/en
Abandoned 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
    • F42B12/04—Projectiles, missiles or mines characterised by the warhead, the intended effect, or the material characterised by the warhead or the intended effect of armour-piercing type
    • F42B12/06—Projectiles, missiles or mines characterised by the warhead, the intended effect, or the material characterised by the warhead or the intended effect of armour-piercing type with hard or heavy core; Kinetic energy penetrators
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F42—AMMUNITION; BLASTING
    • F42B—EXPLOSIVE CHARGES, e.g. FOR BLASTING, FIREWORKS, AMMUNITION
    • F42B10/00—Means for influencing, e.g. improving, the aerodynamic properties of projectiles or missiles; Arrangements on projectiles or missiles for stabilising, steering, range-reducing, range-increasing or fall-retarding
    • F42B10/02—Stabilising arrangements
    • F42B10/04—Stabilising arrangements using fixed fins
    • F42B10/06—Tail fins
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F42—AMMUNITION; BLASTING
    • F42B—EXPLOSIVE CHARGES, e.g. FOR BLASTING, FIREWORKS, AMMUNITION
    • F42B14/00—Projectiles or missiles characterised by arrangements for guiding or sealing them inside barrels, or for lubricating or cleaning barrels
    • F42B14/06—Sub-calibre projectiles having sabots; Sabots therefor
    • F42B14/061—Sabots for long rod fin stabilised kinetic energy projectiles, i.e. multisegment sabots attached midway on the projectile

Definitions

  • the present invention relates to a penetrator for a projectile, in particular a subcaliber kinetic energy penetrator, also referred to as a long-rod penetrator or KE penetrator, comprising a tail unit and a main core.
  • the main core comprises at least one front part and at least one rear part.
  • the tail unit is arranged on the rear part of the penetrator.
  • the invention further relates to a projectile including the penetrator and a sabot, as well as a cartridge munition comprising a projectile of this type.
  • the invention also relates to the use of such a penetrator or projectile for engaging an armored target having armoring, in particular a tank having preferably reactive armoring.
  • a subcaliber kinetic energy penetrator having a great length/diameter ratio is known from DE 40 22 821 A1, which is used to penetrate targets having multiple armorings, even at great angles of inclination of the targets.
  • the projectile is made up of a lower-mass pre-core and a rear main core as a cylindrical body.
  • the two cores form a cohesive one-part projectile body.
  • a predetermined breaking point is provided in the region of the tip, which is formed in that the front end of the main core is a forward-tapering frustrum, which has a rounded area in the transition region to the pre-core.
  • a subcaliber projectile is known from the document DE 40 28 409 A1, which includes a penetrator and a tail unit coaxially surrounding the penetrator in a partial region of its length.
  • a partial region of the penetrator is designed in a conical manner on its rear side.
  • the tail unit is connected to the penetrator in a form-fitting manner.
  • the penetrator has a predetermined breaking point in the form of a notch, which ensures that, upon striking a target, the tail unit breaks off, and the remaining penetrator passes through with less hindrance.
  • a penetrator is known from DE 10 2015 117 018 A1, which corresponds to US 2018/0224251, which is incorporated herein by reference, and which has an interface in the front region, to which different penetrator tips may be attached.
  • a basic penetrator is created via this geometric interface, which may be provided with different penetrator tips and augmented to form individual KE penetrators. This makes it possible to react to different reactive targets with the aid of different penetrator tips.
  • the basic penetrator may also be made from a different material than the different penetrator tips.
  • a removable tail unit for a full-caliber projectile is known from DE 10 2019 117 496.1.
  • the tail unit is connected to the projectile via a bayonet joint. It is proposed that the entire rear part, including the tail unit, is separated from the projectile head.
  • the tail unit wings of a folding tail unit are swung out. If the tail unit part is a rigid tail unit, the diameter thereof is larger than the projectile diameter. After or upon the penetration of the target, the solid tail unit part is axially separated from the projectile head. The rear part remains stuck in the target or follows the warhead later on. A newly created interface takes on the task of separation.
  • the interface may be provided between the tail unit part and the projectile head and is preferably also implemented with the aid of a locking mechanism.
  • the interface may be incorporated or integrated into a joining region between the tail unit and the casing of the projectile head.
  • a transfer part may be provided, which is accommodated between the casing of the projectile head and a rear part of the tail unit part.
  • the idea underlying the invention is to provide a penetrator for a projectile, in particular a subcaliber kinetic energy penetrator, which comprises a tail unit and a main core.
  • the main core comprises at least one front part and at least one rear part.
  • the tail unit is arranged on the rear part of the main core.
  • At least one predetermined breaking point is provided between the at least one front part and the at least one rear part.
  • this created predetermined breaking point achieves the fact that the tail unit is separated at the predetermined breaking point, together with the rear part of the main core during the penetration of the front part of the main core by the rear part of the main core of the penetrator.
  • a projectile which comprises a penetrator or a refined penetrator as described below, and a sabot.
  • a cartridge munition which comprises a projectile of this type and a cartridge casing.
  • a use of a penetrator of this type or a refined penetrator as described below is also provided for engaging an armored target having an, in particular, reactive armor, in particular a tank having reactive armoring.
  • the predetermined breaking point is designed in areas in such a way that it is mechanically less resilient than the front part and the rear part of the main core. This means that the material in the region of the predetermined breaking point(s) has lower strength values or a lower modulus of elasticity than in the front part and the rear part of the main core.
  • the predetermined breaking point is, on the one hand, manufactured by primary forming and/or forming.
  • a predetermined breaking point of this type may be produced, for example, by inducing residual stresses and/or by means of inhomogeneities in the material in the region of the predetermined breaking point.
  • a material for the predetermined breaking point may be provided, which has lower strength values or a lower modulus of elasticity than in the front part and/or the rear part of the main core. It is not provided to produce the predetermined breaking point(s) by purely machining the penetrator, so that a groove structure, etc. results from cutting.
  • the penetration effect by the tail unit is not reduced.
  • the penetrator strikes the pre-target, an easier penetration is possible, since the remaining front part of the main core, excluding the tail unit and rear part of the main core, no longer offers resistance during penetration, and consequently there is less deflection of the front part of the main core or the penetrator.
  • the remaining part of the penetrator i.e., the front part of the main core
  • the front part of the main core is decoupled from the reactive pre-target.
  • the front part of the main core of the penetrator according to the invention may consequently develop a better effect in the main target.
  • the front part of the main core may be optimally adapted to the reactive targets to be engaged for the purpose of improving the engagement therewith.
  • the penetrator is preferably used to engage an armored target, in particular, a tank having reactive armoring.
  • the predetermined breaking point can be configured to allow the rear part of the main core, together with the tail unit, to break off of the front part of the main core when striking a target, in particular a pre-target.
  • the length of the front part of the main core can be at least 50%, preferably at least 70%, preferably at least 80%, further preferably at least 90% of the length of the main core—viewed from the tip.
  • the predetermined breaking point can be manufactured by primary forming and/or by forming.
  • a predetermined breaking point of this type may be produced, for example, by inducing residual stresses or by means of inhomogeneities in the material.
  • the main core can be provided with a one-piece design in such a way that the at least one front part and the at least one rear part of the main core are formed from a single piece.
  • This has the advantage that a good ballistic effect and low tolerances are achievable.
  • the main core therefore does not have any moving parts, such as screw connections.
  • the penetrator according to the invention thus does not have any moving parts.
  • the weakening of the material in the region of the predetermined breaking point may be achieved, for example, by inducing residual stresses and/or by means of inhomogeneities in the material.
  • the main core has a two-piece or two-part design.
  • Combinations of different materials for the front part of the hard core and for the rear part of the hard core are thus possible.
  • a heavy material is used for the front region of the main core and a lighter-weight material for the rear region of the main core, so that a preferably high weight is maintained for effective momentum after the break-off at the predetermined breaking point.
  • the effect at the main target is increased hereby.
  • the predetermined breaking point is an integral connection made from a mechanically less resilient material than the main core. This achieves the fact that a reliable break-through of the predetermined breaking point of the main core is implemented.
  • the penetrator can be manufactured, in particular sintered, from a tungsten heavy metal material, and the predetermined breaking point has a lower density than the rest of the main core. This achieves the fact that a main core manufactured from one material has different material properties in regions and/or in sections, in particular in the region of the predetermined breaking point(s).
  • the main core as well as the predetermined breaking point may also be manufactured, in particular sintered, from other heavy metals or other suitable high-density materials.
  • the penetrator is inert.
  • the penetrator thus does not have any explosive material, i.e., the penetrator preferably does not comprise any active media in this embodiment.
  • the main core preferably has a solid design. “Solid” includes the formation from a sintering material. Alternatively, the penetrator may also be provided with a hollow design. This makes it possible to integrate active media in one particular specific embodiment.
  • the predetermined breaking point may be formed by a thermal heat treatment of the main core.
  • the region of the predetermined breaking point may be deliberately weakened by heat treatment.
  • the region of the predetermined breaking point may also be recessed, so that only the rest of the main core is designed to be more mechanically resilient with respect to its material properties due to the heat treatment.
  • the front part of the main core and the rear part of the main core each have a thread, and the front part and the rear part of the main core may be connected by a mechanically less resilient connecting element to form the predetermined breaking point.
  • a predetermined breaking point between a front part and a rear part may be cost-effectively created hereby. This also makes it possible for the front part of the main core and the rear part of the main core to have different material properties.
  • the front part of the main core and the rear part of the main core may each have an inner thread, and the connecting element has one or two outer thread(s) matched thereto.
  • the front part of the main core and the rear part of the main core each have an outer thread
  • the connecting element has one or two inter thread(s) matched thereto.
  • the predetermined breaking point has a structural weak point, in particular, a notch or a milled recess.
  • the effect of the predetermined breaking point may be increased thereby, so that the front and rear parts of the main core may be even more easily separated from each other.
  • the predetermined breaking point is arranged within the cartridge casing. This achieves the fact that the predetermined breaking point is not exposed to external influences.
  • a penetrator for a projectile comprising a tail unit and a main core, which has at least one front part and at least one rear part.
  • a tail unit is arranged on the rear part of the main core.
  • a predetermined breaking point is formed between the front part and the rear part of the main core, and the material of the predetermined breaking point is designed to be mechanically less resilient that the rest of the main core.
  • FIG. 1 shows a schematic representation of a penetrator according to the invention.
  • FIG. 2 shows a schematic sectional representation of a penetrator according to the invention.
  • FIG. 1 shows a schematic representation of a penetrator 10 according to the invention.
  • Penetrator 10 illustrated in FIG. 1 is a penetrator for a projectile 1 .
  • This projectile 1 is preferably a subcaliber kinetic energy penetrator including a sabot.
  • Penetrator 10 includes a tail unit 3 and a main core 2 .
  • Main core 2 comprises at least one front part 21 and at least one rear part 22 .
  • Tail unit 3 is arranged on rear part 22 of main core 2 .
  • a predetermined breaking point 7 is formed between front part 21 and rear part 22 of main core 2 .
  • Predetermined breaking point 7 is designed to be mechanically less resilient than the rest of main core 2 .
  • Predetermined breaking point 7 is configured to allow rear part 22 of main core 10 , together with tail unit 3 , to break off from the at least one front part 21 of main core 2 upon striking a target, in particular a pre-target.
  • Length L of the at least one front part 21 of main core 2 is at least 50%, preferably 70%, preferably 80%, further preferably 90% of the length of main core 2 .
  • Predetermined breaking point 7 may be manufactured, for example, by primary forming and/or forming manufacturing methods.
  • Penetrator 10 illustrated in FIG. 1 includes a main core 2 having a one-piece design.
  • Predetermined breaking point 7 may be, for example, an integral connection, which is formed from a mechanically less resilient material than main core 2 .
  • Main core 2 of penetrator 10 is preferably provided with a solid design.
  • Penetrator 10 is manufactured, for example, from a tungsten heavy metal material. This material may be a sintering material. To design predetermined breaking point 7 to be mechanically less resilient, the latter may have a lower density in the case of a sintering material than the rest of main core 2 .
  • Penetrator 10 is preferably an inert penetrator 10 .
  • Predetermined breaking point 7 is formed by a thermal heat treatment of main core 2 .
  • FIG. 2 shows a schematic sectional representation of a penetrator 10 .
  • the example according to FIG. 2 is based on the example according to FIG. 1 , only the differences with respect to FIG. 1 being explained below.
  • Main core 2 of penetrator 10 according to FIG. 2 is provided with a two-piece design.
  • Front part 21 of main core 2 and rear part 22 of main core 2 each have a thread, and front part 21 and rear part 22 of main core 2 are connected by a mechanically less resilient connecting element 25 to form predetermined breaking point 7 .

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  • Engineering & Computer Science (AREA)
  • General Engineering & Computer Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Combustion & Propulsion (AREA)
  • Physics & Mathematics (AREA)
  • Fluid Mechanics (AREA)
  • Aiming, Guidance, Guns With A Light Source, Armor, Camouflage, And Targets (AREA)
  • Toys (AREA)
US17/888,211 2020-02-18 2022-08-15 Penetrator and use of a penetrator Abandoned US20220390214A1 (en)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
DE102020104217.5A DE102020104217A1 (de) 2020-02-18 2020-02-18 Penetrator und Verwendung eines Penetrators
DE102020104217.5 2020-02-18
PCT/EP2021/050778 WO2021164961A1 (fr) 2020-02-18 2021-01-15 Pénétrateur et utilisation d'un pénétrateur

Related Parent Applications (1)

Application Number Title Priority Date Filing Date
PCT/EP2021/050778 Continuation WO2021164961A1 (fr) 2020-02-18 2021-01-15 Pénétrateur et utilisation d'un pénétrateur

Publications (1)

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US20220390214A1 true US20220390214A1 (en) 2022-12-08

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US17/888,211 Abandoned US20220390214A1 (en) 2020-02-18 2022-08-15 Penetrator and use of a penetrator

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US (1) US20220390214A1 (fr)
JP (1) JP2023513601A (fr)
CA (1) CA3172762A1 (fr)
DE (1) DE102020104217A1 (fr)
WO (1) WO2021164961A1 (fr)

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE102020116589A1 (de) 2020-06-24 2021-12-30 Rheinmetall Waffe Munition Gmbh Penetrator, Verwendung eines Penetrators und Geschoss
DE102020120747A1 (de) 2020-08-06 2022-02-10 Rheinmetall Waffe Munition Gmbh Penetrator, Verwendung eines Penetrators und Geschoss

Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5204494A (en) * 1990-04-14 1993-04-20 Rheinmetall Gmbh Subcaliber projectile with sabot
CN1122160A (zh) * 1993-04-30 1996-05-08 奥林公司 带加强芯的打猎子弹
US6182574B1 (en) * 1999-05-17 2001-02-06 Gregory J. Giannoni Bullet
US20080092768A1 (en) * 2006-10-19 2008-04-24 Xtek Limited Special purpose small arms ammunition
US20200225009A1 (en) * 2010-11-10 2020-07-16 True Velocity Ip Holdings, Llc Polymer ammunition having a projectile made by metal injection molding
US20210341275A1 (en) * 2020-04-29 2021-11-04 Barnes Bullets, Llc Low drag, high density core projectile
US20230103234A1 (en) * 2021-09-24 2023-03-30 David Murchison Cartridge case and projectile

Family Cites Families (11)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE2234219C1 (de) 1972-07-12 1985-10-31 Rheinmetall GmbH, 4000 Düsseldorf Panzerbrechendes Geschoß
DE3517125A1 (de) 1985-05-11 1986-11-13 Rheinmetall GmbH, 4000 Düsseldorf Unterkalibriges geschoss
DE3843796A1 (de) * 1988-12-24 1990-07-05 Rheinmetall Gmbh Geschoss mit fluegelleitwerk
DE4022821A1 (de) 1990-07-18 1992-01-23 Rheinmetall Gmbh Unterkalibriges wuchtgeschoss
DE4028409C2 (de) 1990-09-07 1997-05-15 Rheinmetall Ind Ag Unterkalibriges Geschoß
DE4141560C2 (de) 1991-12-17 1996-02-22 Rheinmetall Ind Gmbh Wuchtgeschoß
CH691785A5 (de) 1996-07-30 2001-10-15 Schweizerische Unternehmung Fu Verbund-Pfeilgeschoss, insbesondere für die Panzerabwehr.
DE19855534B4 (de) * 1998-12-02 2004-09-30 Rheinmetall W & M Gmbh Leitwerkstabilisiertes Geschoß
DE102006025330A1 (de) 2006-05-31 2007-12-06 WEIHRAUCH, Günter Geschoss, Wirkkörper oder Gefechtskopf zur Bekämpfung massiver, strukturierter und flächenhafter Ziele
DE102015117018A1 (de) 2015-10-06 2017-04-06 Rheinmetall Waffe Munition Gmbh Penetrator sowie unterkalibriges Geschoss
DE102019117496A1 (de) 2019-06-28 2020-12-31 Rheinmetall Waffe Munition Gmbh Geschoss

Patent Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5204494A (en) * 1990-04-14 1993-04-20 Rheinmetall Gmbh Subcaliber projectile with sabot
CN1122160A (zh) * 1993-04-30 1996-05-08 奥林公司 带加强芯的打猎子弹
US6182574B1 (en) * 1999-05-17 2001-02-06 Gregory J. Giannoni Bullet
US20080092768A1 (en) * 2006-10-19 2008-04-24 Xtek Limited Special purpose small arms ammunition
US20200225009A1 (en) * 2010-11-10 2020-07-16 True Velocity Ip Holdings, Llc Polymer ammunition having a projectile made by metal injection molding
US20210341275A1 (en) * 2020-04-29 2021-11-04 Barnes Bullets, Llc Low drag, high density core projectile
US20230103234A1 (en) * 2021-09-24 2023-03-30 David Murchison Cartridge case and projectile

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Publication number Publication date
DE102020104217A1 (de) 2021-08-19
WO2021164961A1 (fr) 2021-08-26
JP2023513601A (ja) 2023-03-31
CA3172762A1 (fr) 2021-08-26

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