Classifications

• • 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
• • 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
• • 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
  • F42B14/068—Sabots characterised by the material

Definitions

• the invention is concerned with the production of a sabot of a subcaliber mass projectile in the small caliber, medium caliber and large caliber range.
• the invention sets considerations of a weight-reduced, bionic sabot by, for example, glo- bulitic cavities in the sabot.
• KE kinetic energy ammunition
• the ammunition is usually made of a metallic penetrator (balancing projectile), preferably made of heavy metal high strength and toughness.
• the penetrators have a nail or arrow-like shape. They are smaller in caliber (sub-caliber) than the barrel from which they are fired.
• a sabot, sabot or sabot is needed, which encloses the penetrator and the caliber content generated to the tube.
• the sabot assumes the task of sealing against powder gases during firing down to the weapon barrel. Over projected surfaces of the sabot a force is applied by means of the gas pressure resulting from the burning of the powder, which accelerates the sabot together.
• the task of the sabot is to take the penetrator during the tube passage, apply the acceleration, seal against the gun barrel, to guide the penetrator and release the penetrator trouble-free after leaving the muzzle.
• the sabots are made of plastic, metals or a combination of both.
• a sub-caliber balancing projectile whose sabot consists of a fiber-reinforced material.
• the sabot floor is provided with openings.
• the fiber reinforced material is a carbon fiber reinforced plastic or a carbon fiber reinforced carbon.
• Other reinforcing fibers for plastics may be aramid fibers or polyethylene fibers.
• Reinforcing fibers for metals such as aluminum, magnesium or titanium include Al 2 O 3 - fibers or SiC fibers.
• a sabot for a sub-caliber sabot projectile discloses the DE 29 24 041 C2.
• the material of the sabot is a ceramic or glass, with a bias. Prestressed glass or other ceramic materials with appropriate behavior have a very high mechanical strength.
• the disintegration of the sabot is initiated by a mass that is thrown against the inner wall of the sabot. The mass itself is housed in a cavity.
• a Unterkalibriges balancing projectile with a collapsible bullet guide describes the DE 30 34 471 A1.
• bullet guide is produced as a pressed part of hollow glass balls with plastic binder material or glass binder material.
• foam glass or syntactic foams are mentioned.
• a sabot according to DE 10 2009 049 440 A1 is distinguished by a complete, but at least partial, construction from a material foam.
• the material foam can be a metal foam, such as aluminum foam, zinc foam, foaminale, wherein the foam can be used as a sandwich component with layers of the same or a different material, a reinforced fiber material and or a core of other material.
• the object of the invention is to be able to produce weight-reduced sabot parts with sufficient environmental resistance that can be produced cost-effectively, compared to imported systems, while maintaining a maximum muzzle velocity.
• the invention is based on the idea of producing the sabot or the sabot parts weight-reduced by means of bionic structures, these structures ensuring sufficient stability etc. of the sabot or the sabot parts.
• bionic structures e.g., honeycomb, struts, bubbles, spherical cavities, and combinations thereof.
• Such methods may e.g. the 3D printing process e.g. be made of plastics or laser sintering.
• plastic laser sintering of the sabot or the sabot parts or segments can be made with bionic structures made of plastic.
• Metal laser sintering allows for the manufacture of the sabot or sabot segments with the bionic structures of a metal such as aluminum. The bandwidth ranges from light metal to superalloys. Also excluded from these considerations are the production by means of 3D cocooner, although this method appears more complex.
• the bionic structures are created from a handling spinneret.
• glass fibers are glued to complex structures with simultaneous lamination with UV-curing resin.
• the sabot receives or the sabot segments obtained by the bionic structures the necessary strength and rigidity for the pipe passage with maximum weight reduction.
• the advantage of such methods lies in the definable configurations of the cavities, etc. It is possible to directly influence the size and shape (volume) of the cavities (programming in 3D). Also on the number or quantity and distribution within the sabot or the sabot segments (sabot parts) a direct influence is possible.
• a sabot in which bionic structures are provided, which are created by a 3D manufacturing process defined in size, shape and / or volume and purposefully within the sabot in the manufacture of the sabot or created only. Targeted are the local embedding within the sabot and the number of bionic structures, ie, the local and number embedding within the sabot.
• the single figure shows in sketch form an ammunition 1 with a sabot 2 and a particle 3.
• the sabot 2 encloses the penetrator 2 and can be connected to the penetrator 2 at least in the form-fit region 4.
• the positive connection region 4 may have a thread (not shown in detail).
• the sabot 2 may consist of several segments 2.1, 2.2, which are held together by a sealing and / or guide band (not shown in detail).
• bionic structures 5 shapes such as honeycomb, struts, bubbles, cavities and combinations thereof are defined.
• the cavities 6 can be spherical, angular, etc.
• the sabot 2 or the sabot segments 2.1, 2.2 can be produced in 3D printing or in the SLS process (laser sintering).
• the geometric data of the sabot segments 2.1, 2.2 are available in three dimensions and are stored as layer data.
• a cast model is also produced from the geometric shapes (not shown in detail).
• the sabot segments 2.1, 2.2 are then built up layer by layer in a layer structure. Areas are recessed in the layers so that the bionic structures 5, for example globulitic cavities 6, can be incorporated / incorporated in the sabot segments 2.1, 2.2 in the form, size and volume.
• a layer structure of the sabot segments 2.1, 2.2 takes place in layers without a casting mold. These are the sabot segments 2.1, 2.2 with their bionic structures 5,

Landscapes

• Engineering & Computer Science (AREA)
• General Engineering & Computer Science (AREA)
• Materials For Medical Uses (AREA)
• Powder Metallurgy (AREA)
• Nonwoven Fabrics (AREA)
• Compounds Of Alkaline-Earth Elements, Aluminum Or Rare-Earth Metals (AREA)
• Catalysts (AREA)
• Preparation Of Compounds By Using Micro-Organisms (AREA)

Applications Claiming Priority (2)

Publications (1)

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Family Applications (1)

Country Status (11)

Families Citing this family (3)

Family Cites Families (23)

• 2016
  • 2016-07-11 DE DE102016112666.7A patent/DE102016112666A1/de active Pending
• 2017
  • 2017-06-09 RU RU2019100060A patent/RU2734805C2/ru active
  • 2017-06-09 SG SG11201900234XA patent/SG11201900234XA/en unknown
  • 2017-06-09 KR KR1020197003818A patent/KR102209638B1/ko active IP Right Grant
  • 2017-06-09 WO PCT/EP2017/064074 patent/WO2018010900A1/de unknown
  • 2017-06-09 EP EP17728842.0A patent/EP3482152A1/de active Pending
  • 2017-06-09 UA UAA201900544A patent/UA126116C2/uk unknown
  • 2017-06-09 JP JP2019500872A patent/JP6835945B2/ja active Active
• 2018
  • 2018-12-26 IL IL263971A patent/IL263971B2/en unknown
• 2019
  • 2019-01-10 CL CL2019000075A patent/CL2019000075A1/es unknown
  • 2019-01-11 US US16/245,955 patent/US10969211B2/en active Active

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