EP2195604A1 - Gehäusematerial für ein sprenggeschoss, eine handgranate oder dergleichen - Google Patents
Gehäusematerial für ein sprenggeschoss, eine handgranate oder dergleichenInfo
- Publication number
- EP2195604A1 EP2195604A1 EP08785832A EP08785832A EP2195604A1 EP 2195604 A1 EP2195604 A1 EP 2195604A1 EP 08785832 A EP08785832 A EP 08785832A EP 08785832 A EP08785832 A EP 08785832A EP 2195604 A1 EP2195604 A1 EP 2195604A1
- Authority
- EP
- European Patent Office
- Prior art keywords
- metal foam
- projectile
- explosive
- housing material
- hand grenade
- 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.)
- Granted
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
- F42B12/20—Projectiles, missiles or mines characterised by the warhead, the intended effect, or the material characterised by the warhead or the intended effect of high-explosive type
- F42B12/22—Projectiles, missiles or mines characterised by the warhead, the intended effect, or the material characterised by the warhead or the intended effect of high-explosive type with fragmentation-hull construction
-
- 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
Definitions
- the invention relates to a housing material for an explosive projectile, a hand grenade or the like with a defined construction fragmentation.
- Explosive projectiles act due to their pressure wave, but primarily due to the fragmentation on the targets. For a splitter to effectively affect the target, it requires a certain mass and hardness. If the splinters are too small, they show little or no effect in the target. If they are too large, the surface effect is minimized.
- the projectile casing which is usually the carrier for the explosive, thereby contributes significantly to what condition the splinters are.
- Possibilities to create construction splinters are, for example, the introduction of notches or a notched pattern on the projectile casing, which can be provided from inside as well as from outside. About these breaking points, the fragmentation is defined (DE 197 53 188 C2). Furthermore, it is known to introduce balls of another material in the projectile casing, which then serve as splinters or the application of films or surface coatings on the inside of the projectile to allow the explosive act like many small cutting charges on the projectile casing and produce defined splinters ,
- the projectile casing must also be able to accommodate the various loads that can act on a projectile.
- loads are temperature fluctuations, launch loads, vibrations, etc., which must be survived without damage, so that the bullet remains functional.
- the invention has the object to show a way with which, taking into account an optimal material selection to capture the loads a good splinter formation can be implemented.
- the object is achieved by the features of claim 1.
- Advantageous embodiments are the dependent claims.
- the invention is based on the idea to produce relatively clearly defined splinters over the entire projectile casing or selected areas, alternatively for a hand grenade, etc. This is achieved via predetermined breaking points in the material of the projectile or housing shell itself.
- the material included in the predetermined breaking points require less energy to rupture the shell or housing shell, so that more energy is available to accelerate the splitter. This leads to a higher splitter speed.
- a metal foam which is filled with another material, d. H. the cavities (pores) of the metal foam are filled with another material, so that after filling and possibly hardening a solid body is formed, which no longer has cavities.
- the metal foam may consist of various metals and forms the backbone for the shell and the carrier for the filler.
- the filling material in turn serves to give the bullet or housing in addition to the metal foam the necessary strength and stability and the other to splinter definition.
- the webs of the metal foam which are embedded in the middle of the filling material, form something like predetermined breaking points in this. During the detonation of the explosive, the material is torn open along these predetermined breaking points. Splinters are formed in the size of the pores of the metal foam. Due to the pore size in the metal foam production thus the size of the splitter is variable and defined adjustable.
- the pore size and thus the fragment size can be determined during the manufacturing process of the metal foam and designed so that the strength values that are placed on the projectile or the projectile or housing shell, not only can be met, but also made more individual according to these values can. At the same time, the number of splinters as well as the splitter weight can be purposefully influenced.
- filler material different materials can be used. For example, ceramics and their composites, steels or other types of metals. These can be tuned together with the material properties of the metal foam, for example taking into account the densities, the thermal expansion coefficients, the strength values, Temperature range, etc. (based on the requirements of a projectile casing, etc.). These can be coordinated with each other in the manufacturing process. It should be noted that the materials (metal foam, filling material) should be reshaped or brought into a specific shape.
- 1 is an explosive projectile with a projectile shell made of filled metal foam
- FIG. 2 shows the metal foam from FIG. 1.
- FIG. 1 an explosive projectile 1 with a projectile casing 2 and an explosive charge 3 located in the projectile 1 is shown.
- Fig. 2 shows a metal foam 5, which is filled with filler 6.
- the metal foam 5 serves on the one hand as a supporting and shaping element of the projectile 1 and on the other hand represent the webs 7 of the metal foam 5 predetermined breaking points in the cast (filling) material 6, which is filled into the cavities 8 of the metal foam 5.
- the webs 7 act between the filler 6 as cracks or predetermined breaking points in the filler 6. Provided that the filler 6 has a certain hardness to break apart at these cracks, this will broken apart with breaking the webs 7 and the resulting splinters are accelerated by the pressure.
Landscapes
- Engineering & Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- Combustion & Propulsion (AREA)
- General Engineering & Computer Science (AREA)
- Physics & Mathematics (AREA)
- Thermal Sciences (AREA)
- Aiming, Guidance, Guns With A Light Source, Armor, Camouflage, And Targets (AREA)
- Perforating, Stamping-Out Or Severing By Means Other Than Cutting (AREA)
Abstract
Description
Claims
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE200710048040 DE102007048040A1 (de) | 2007-10-05 | 2007-10-05 | Gehäusematerial für ein Sprenggeschoss, eine Handgranate oder dergleichen |
PCT/EP2008/007302 WO2009046797A1 (de) | 2007-10-05 | 2008-09-06 | Gehäusematerial für ein sprenggeschoss, eine handgranate oder dergleichen |
Publications (2)
Publication Number | Publication Date |
---|---|
EP2195604A1 true EP2195604A1 (de) | 2010-06-16 |
EP2195604B1 EP2195604B1 (de) | 2012-09-05 |
Family
ID=40268223
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
EP08785832A Not-in-force EP2195604B1 (de) | 2007-10-05 | 2008-09-06 | Gehäusematerial für ein sprenggeschoss, eine handgranate oder dergleichen |
Country Status (4)
Country | Link |
---|---|
EP (1) | EP2195604B1 (de) |
DE (1) | DE102007048040A1 (de) |
ES (1) | ES2392723T3 (de) |
WO (1) | WO2009046797A1 (de) |
Families Citing this family (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE102014019202A1 (de) | 2014-12-19 | 2016-06-23 | Diehl Bgt Defence Gmbh & Co. Kg | Geschoss |
DE102022002278A1 (de) | 2022-06-23 | 2023-12-28 | Diehl Defence Gmbh & Co. Kg | Wirkkörper mit Sollbruchstellen für Geschosse |
Family Cites Families (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
FR2480427B1 (fr) * | 1980-04-09 | 1986-02-28 | Michel Gerard | Enveloppe generatrice d'eclats pour projectile explosif |
DE19753188C2 (de) | 1997-11-21 | 2002-06-06 | Diehl Stiftung & Co | Splitterbildende Hülle für Munition |
US6846372B1 (en) * | 2003-03-31 | 2005-01-25 | The United States Of America As Represented By The Secretary Of The Navy | Reactively induced fragmentating explosives |
US20050067072A1 (en) | 2003-09-09 | 2005-03-31 | Government Of The United States Of America. | Reinforced reactive material |
-
2007
- 2007-10-05 DE DE200710048040 patent/DE102007048040A1/de not_active Withdrawn
-
2008
- 2008-09-06 ES ES08785832T patent/ES2392723T3/es active Active
- 2008-09-06 EP EP08785832A patent/EP2195604B1/de not_active Not-in-force
- 2008-09-06 WO PCT/EP2008/007302 patent/WO2009046797A1/de active Application Filing
Non-Patent Citations (1)
Title |
---|
See references of WO2009046797A1 * |
Also Published As
Publication number | Publication date |
---|---|
ES2392723T3 (es) | 2012-12-13 |
EP2195604B1 (de) | 2012-09-05 |
DE102007048040A1 (de) | 2009-04-09 |
WO2009046797A1 (de) | 2009-04-16 |
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