EP1949020A1 - Verfahren zur herstellung eines segmentierten treibkäfigs - Google Patents
Verfahren zur herstellung eines segmentierten treibkäfigsInfo
- Publication number
- EP1949020A1 EP1949020A1 EP06818419A EP06818419A EP1949020A1 EP 1949020 A1 EP1949020 A1 EP 1949020A1 EP 06818419 A EP06818419 A EP 06818419A EP 06818419 A EP06818419 A EP 06818419A EP 1949020 A1 EP1949020 A1 EP 1949020A1
- Authority
- EP
- European Patent Office
- Prior art keywords
- sabot
- penetrator
- joints
- segments
- section
- 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
- 238000004519 manufacturing process Methods 0.000 title claims description 7
- 238000004073 vulcanization Methods 0.000 claims abstract description 10
- 238000000034 method Methods 0.000 claims abstract description 9
- 239000000463 material Substances 0.000 claims abstract description 8
- 238000010304 firing Methods 0.000 description 3
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 description 2
- 229910052782 aluminium Inorganic materials 0.000 description 2
- 230000006399 behavior Effects 0.000 description 2
- 239000007789 gas Substances 0.000 description 2
- 239000003380 propellant Substances 0.000 description 2
- 230000001419 dependent effect Effects 0.000 description 1
- 230000024703 flight behavior Effects 0.000 description 1
- 230000000717 retained effect Effects 0.000 description 1
- 230000011218 segmentation Effects 0.000 description 1
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
- F42B14/067—Sealing aspects in sabots, e.g. sealing between individual segments of the sabots or sealing between the outer surface of the sabot and the inner surface of the barrel
-
- 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
- F42B14/062—Sabots for long rod fin stabilised kinetic energy projectiles, i.e. multisegment sabots attached midway on the projectile characterised by contact surfaces between projectile and sabot
Definitions
- the invention relates to a method for producing a segmented sabot for projectiles with Unterkalibrigem penetrator with the features specified in the preamble of claim 1.
- a sabot which can be connected via a trained as a thread form-fitting zone with a subcaliber penetrator, is known for example from DE 25 37 116 Al.
- This sabot is composed of a plurality of circumferentially arranged side by side and longitudinally extending sabot segments together, wherein the sabot segments are separated in a from the front of the sabot in the axial direction extending first portions by radially continuous joints and in a the first sub-area subsequent second portion are integrally connected together.
- the second portion of the known sabot has no joints between the sabot segments and is very narrow with respect to the first portion.
- the width of the second portion is chosen such that this portion, while resisting the firing forces occurring during firing in the gun barrel, ruptures outside of the barrel by centrifugal and / or airflow forces, so that the sabot segments release the subcaliber penetrator.
- the abovementioned sabots have the advantage that they can be produced in a simple manner, because the otherwise usually complete segmentation of a blank and the subsequent complicated processing of the sabot segments held together by clamps are dispensed with prior to the introduction of the penetrator into the sabot.
- the exact Design of the second portions is relatively critical because at too wide second portions of the tear lines when tearing the respective sabot are often not reproducible and disturbing influence of the penetrator is caused by the detaching sabot segments.
- the respective penetrator will already be torn open in the weapon barrel at the rear.
- propellant gases can pass between the joints and in the form-fitting region between the sabot and the penetrator, which also leads to a non-reproducible flight behavior of the penetrator outside of the gun barrel.
- the invention has for its object to provide a method for producing a sabot, in which the problems associated with the second portion of the sabot are largely avoided.
- the width of the second portion should be arbitrary within certain limits, without this having a negative impact on the detachment behavior of the sabot of the penetrator.
- the invention is based on the idea of providing the second partial region of the sabot initially left in one piece with predetermined breaking points. These are produced by the fact that in the second portion extending in the axial direction joints are introduced, which connect directly to the axial joints of the first portion and extending from the outer surface of the sabot into the positive connection region of the sabot, so that a perforated threaded area results. After screwing the penetrator into the sabot, the parting lines of the second subregion are then closed by vulcanization with a vulcanizate.
- the method can be selected by selecting appropriate process parameters such that the perforations are retained even after vulcanization and Therefore, act as predetermined breaking points in the detachment process of the penetrator segments.
- the perforated threaded portion and the material of the sabot be selected such that it forms during vulcanization by the thermal expansions to cracks of the still existing sabot material between the threads, so that the joints between the sabot segments in the second portion also extend in the radial direction through the entire sabot wall.
- the release behavior of the sabot segments is determined in this case primarily only by the properties of the vulcanizate in the event of firing.
- Fig.l the side view of a sabot according to the invention.
- FIG. 2 shows the longitudinal section of the sabot shown in Figure 1 along the designated II-II section line and
- FIG. 3 shows a designated in Fig.2 with III enlarged detail.
- a two-flange sabot is shown, which is formed as a one-piece body.
- the front guide flange 2 and the rear pressure flange of the For example, consisting of aluminum sabot 1 are provided with the reference numerals 2 and 3.
- Themaschinekaf ⁇ g 1 has an internal thread 4, by means of which it is positively connected to a penetrator (not shown) connectable.
- first dividing joints 7 of equal length are provided, each extending to the pressure flange 3 and four circumferentially juxtaposed sabot segments 8 define (in Figures 2 and 3 only two sabot segments are shown).
- the sabot segments 8 are integrally connected. Although the sabot segments 8 are also separated by extending in the axial direction of second joints 1 1, these joints 1 1 connect directly axially to the joints 7 of the first portion 6, but extend the joints 11 of the second portion 9 of the outer Surface 12 of the sabot 1 in the radial direction not completely therethrough, but only into the positive connection region 13 in ( Figure 3). This results in parting lines 11, which extend to below the outer thread diameter 14, so that there is a perforated threaded portion, wherein the individual perforations are designated in Fig.2 15.
- the vulcanization is carried out in such a way that by the process heat and the different coefficients of expansion of the penetrator material (eg Woof- ram) and the sabot material (aluminum) push the threads of the sabot 1 on the threads of the penetrator.
- the resulting tensile stresses in the sabot 1, which act on the remaining material in the perforated predetermined breaking point area are so large that the connections between the perforations 15 tear and the sabot 1 is held together only by the vulcanizate, not shown.
- the invention is not limited by the embodiment described above.
- the method according to the invention can also be used for the production of one-flange sabots.
- the number of parallel joints can be chosen such that there are two, three or even more than 4 sabot segments.
Landscapes
- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Heating, Cooling, Or Curing Plastics Or The Like In General (AREA)
- Preparation Of Compounds By Using Micro-Organisms (AREA)
- Moulds For Moulding Plastics Or The Like (AREA)
- Prostheses (AREA)
- Vehicle Body Suspensions (AREA)
- Saccharide Compounds (AREA)
Description
Claims
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| PL06818419T PL1949020T3 (pl) | 2005-11-18 | 2006-11-09 | Sposób wytwarzania segmentowanego sabota |
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| DE102005055504A DE102005055504A1 (de) | 2005-11-18 | 2005-11-18 | Verfahren zur Herstellung eines segmentierten Treibkäfigs |
| PCT/EP2006/010707 WO2007057115A1 (de) | 2005-11-18 | 2006-11-09 | Verfahren zur herstellung eines segmentierten treibkäfigs |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| EP1949020A1 true EP1949020A1 (de) | 2008-07-30 |
| EP1949020B1 EP1949020B1 (de) | 2009-10-21 |
Family
ID=37668252
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| EP06818419A Not-in-force EP1949020B1 (de) | 2005-11-18 | 2006-11-09 | Verfahren zur herstellung eines segmentierten treibkäfigs |
Country Status (5)
| Country | Link |
|---|---|
| EP (1) | EP1949020B1 (de) |
| AT (1) | ATE446494T1 (de) |
| DE (2) | DE102005055504A1 (de) |
| PL (1) | PL1949020T3 (de) |
| WO (1) | WO2007057115A1 (de) |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE102019125128B4 (de) | 2019-09-18 | 2026-02-19 | Rheinmetall Waffe Munition Gmbh | Treibkäfig |
Family Cites Families (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| SE400373B (sv) | 1974-08-21 | 1978-03-20 | Bofors Ab | Drivspegel for underkalibrig projektil |
| DE3033041C2 (de) * | 1980-09-03 | 1986-04-10 | L'Etat Français représenté par le Délégué Général pour l'Armement, Paris | Treibkäfig aus Metall und Kunststoff |
| USH265H (en) * | 1986-11-14 | 1987-05-05 | The United States Of America As Represented By The Secretary Of The Army | Penetrator ammunition with propulsion gas seal |
| ES2118279T3 (es) * | 1993-05-13 | 1998-09-16 | Contraves Pyrotec Ag | Dispositivo impulsor para un proyectil de bajo calibre estabilizado con aletas. |
| US6324986B1 (en) * | 1998-11-06 | 2001-12-04 | Oerlikon Contraves Ag | Cartridge-case base for a sub-caliber projectile |
-
2005
- 2005-11-18 DE DE102005055504A patent/DE102005055504A1/de not_active Withdrawn
-
2006
- 2006-11-09 PL PL06818419T patent/PL1949020T3/pl unknown
- 2006-11-09 WO PCT/EP2006/010707 patent/WO2007057115A1/de not_active Ceased
- 2006-11-09 DE DE502006005214T patent/DE502006005214D1/de active Active
- 2006-11-09 EP EP06818419A patent/EP1949020B1/de not_active Not-in-force
- 2006-11-09 AT AT06818419T patent/ATE446494T1/de not_active IP Right Cessation
Non-Patent Citations (1)
| Title |
|---|
| See references of WO2007057115A1 * |
Also Published As
| Publication number | Publication date |
|---|---|
| ATE446494T1 (de) | 2009-11-15 |
| DE502006005214D1 (de) | 2009-12-03 |
| EP1949020B1 (de) | 2009-10-21 |
| WO2007057115A1 (de) | 2007-05-24 |
| PL1949020T3 (pl) | 2010-03-31 |
| DE102005055504A1 (de) | 2007-05-24 |
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