EP3986633B1 - Pièce de base destinée à produire un boîtier de cartouche et boîtier de cartouche, procédé de production d'une pièce de base pour un boîtier de cartouche, et procédé de production d'un boîtier de cartouche - Google Patents

Pièce de base destinée à produire un boîtier de cartouche et boîtier de cartouche, procédé de production d'une pièce de base pour un boîtier de cartouche, et procédé de production d'un boîtier de cartouche Download PDF

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Publication number
EP3986633B1
EP3986633B1 EP21733079.4A EP21733079A EP3986633B1 EP 3986633 B1 EP3986633 B1 EP 3986633B1 EP 21733079 A EP21733079 A EP 21733079A EP 3986633 B1 EP3986633 B1 EP 3986633B1
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EP
European Patent Office
Prior art keywords
case
base part
base
producing
polygon geometry
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.)
Active
Application number
EP21733079.4A
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German (de)
English (en)
Other versions
EP3986633C0 (fr
EP3986633A1 (fr
Inventor
Stefan Wosch
Marcus Singer
Murat Arbak
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.)
Diehl Metall Stiftung and Co KG
Original Assignee
Diehl Metall Stiftung and Co KG
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.)
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Publication date
Application filed by Diehl Metall Stiftung and Co KG filed Critical Diehl Metall Stiftung and Co KG
Priority to RS20230546A priority Critical patent/RS64361B1/sr
Publication of EP3986633A1 publication Critical patent/EP3986633A1/fr
Application granted granted Critical
Publication of EP3986633C0 publication Critical patent/EP3986633C0/fr
Publication of EP3986633B1 publication Critical patent/EP3986633B1/fr
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Anticipated expiration legal-status Critical

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Classifications

    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F42—AMMUNITION; BLASTING
    • F42C—AMMUNITION FUZES; ARMING OR SAFETY MEANS THEREFOR
    • F42C19/00—Details of fuzes
    • F42C19/08—Primers; Detonators
    • F42C19/0823—Primers or igniters for the initiation or the propellant charge in a cartridged ammunition
    • F42C19/083—Primers or igniters for the initiation or the propellant charge in a cartridged ammunition characterised by the shape and configuration of the base element embedded in the cartridge bottom, e.g. the housing for the squib or percussion cap
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
    • B21K—MAKING FORGED OR PRESSED METAL PRODUCTS, e.g. HORSE-SHOES, RIVETS, BOLTS OR WHEELS
    • B21K21/00—Making hollow articles not covered by a single preceding sub-group
    • B21K21/04—Shaping thin-walled hollow articles, e.g. cartridges
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F42—AMMUNITION; BLASTING
    • F42B—EXPLOSIVE CHARGES, e.g. FOR BLASTING, FIREWORKS, AMMUNITION
    • F42B21/00—Depth charges
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F42—AMMUNITION; BLASTING
    • F42B—EXPLOSIVE CHARGES, e.g. FOR BLASTING, FIREWORKS, AMMUNITION
    • F42B5/00—Cartridge ammunition, e.g. separately-loaded propellant charges
    • F42B5/26—Cartridge cases
    • F42B5/28—Cartridge cases of metal, i.e. the cartridge-case tube is of metal

Definitions

  • the invention relates to a base part for producing a cartridge case, which has a case base for receiving a percussion cap, a circumferential extractor recess being provided on the outer circumference of the base part.
  • the invention also relates to a cartridge case with a cylindrical case, which has a case opening for receiving a propellant charge and a projectile, and a base part opposite the case opening.
  • the invention also relates to methods for producing the base part and the cartridge case.
  • the EP 2 690 391 A1 which forms the basis for the preamble of claim 1 discloses a method of manufacturing a cartridge case.
  • an extractor groove in the form of a circumferential surface of revolution is produced in a sleeve blank by means of forming the blank.
  • a relatively complex forming tool is required, which includes a spacer, among other things.
  • the placeholder in turn comprises 6 to 8 segments.
  • the WO 2014/051940 A1 as well as the EP 3 372 324 A1 disclose methods of making a one-piece sleeve blank.
  • the extractor groove in the form of a circumferential surface of revolution is produced in the sleeve blank using a machining process.
  • the machining of an extractor groove is complex.
  • the US10041770B2 discloses the manufacture of a two-piece cartridge case. To produce such a two-piece cartridge case with a a circumferential extractor groove is connected to a sleeve. The production of two-piece cartridge cases is also complex.
  • the object of the invention is to eliminate the disadvantages of the prior art.
  • a base part for producing a cartridge case and a cartridge case are to be specified, which can be produced in a simplified manner.
  • methods for producing a base part and/or a cartridge case that can be carried out as simply and inexpensively as possible should be specified.
  • the extractor recess has a polygonal geometry, which in cross section is formed from a closed stretch.
  • the extractor recess is designed as a groove and thus as a circumferential surface of revolution, which forms a circle in cross section.
  • the proposed polygonal shape of the extractor recess can be produced in a simplified manner, in particular by means of a forming process. During forming, material can flow from the center of each span of the span towards the corners bounding the spans in the cross-section.
  • an extractor recess which has a polygonal geometry.
  • a “bottom part” within the meaning of the present invention is usually a body that is at least partially cylindrical.
  • cross section is understood to mean a cutting plane which perpendicularly intersects the cylinder axis and runs through the extractor recess.
  • extractor recess is understood to mean a depression extending radially inwards from the outer circumference of the base part or a base section.
  • the extractor recess can be produced by being pressed in from the outer circumference by a force acting radially inwards.
  • At least some of the stretches forming the stretch are straight. All routes are preferably straight. However, it can also be the case that at least some of the stretches forming the stretch are curved (e.g. convex or concave).
  • the routes are usually delimited by corners in the route.
  • the corners can also be rounded.
  • the straight line is designed to be rotationally symmetrical with respect to an axis of rotation.
  • the stretch can be 2n-fold rotationally symmetrical with respect to an axis of rotation, where n is a number ⁇ 3.
  • the polygon geometry can be in the form of a regular 6-corner, 8-corner, etc.
  • the base of the case has an opening for receiving the percussion cap.
  • a base part with the aforementioned features can be designed in such a way that it is suitable as an assembly part for producing a cartridge case. However, it can also be designed in such a way that the cartridge case can be produced from it in one part by means of a further shaping process.
  • a cartridge case with a cylindrical case which has a case opening for receiving a propellant charge and a projectile, as well as a base part according to the invention opposite the case opening.
  • the cylindrical sleeve and the bottom part can be formed in one piece. However, it can also be the case that the cylindrical sleeve and the base part are firmly connected by means of a joining technique.
  • the bottom part can be welded to the sleeve, for example.
  • the proposed method provides a one-piece cartridge case.
  • the starting body can already have a cylindrical sleeve before the circumferential extractor recess is produced. However, it can also be the case that the cylindrical sleeve is formed only after the extractor recess has been produced.
  • the proposed variant of the method provides a base part which is particularly suitable for the production of multi-part cartridge cases in which the base part is joined to a case.
  • starting body is to be understood in general terms. This is a metallic body, which can be, for example, a wire section with a cylindrical outer circumference. However, the starting body can also be a shaped body which has already been shaped or processed by means of machining processes. The starting body can already have an opening for receiving the percussion cap.
  • the polygon geometry is produced from a cylindrical starting body by means of a forming process or a machining process.
  • the polygon geometry can be produced in a simplified manner, in particular by means of a forming process.
  • the polygon geometry is expediently stamped into an outer circumference of the starting body. It has proven to be particularly advantageous to produce the polygon geometry by means of several forming steps.
  • a first polygon geometry is embossed into the outer circumference of the starting body
  • a second polygon geometry superimposed in sections on the first polygon geometry is embossed in the first polygon geometry.
  • a first polygonal geometry is embossed into the outer circumference of the base blank in a first forming step.
  • This can be done with a relatively simply designed forming tool.
  • a second polygon geometry that at least partially overlays the first polygon geometry is embossed into the first polygon geometry.
  • the second forming step can also be carried out with a simply configured forming tool.
  • the overstamping of the first polygon geometry at least in sections in the second forming step results in a polygonally designed extractor recess with high dimensional accuracy.
  • the second forming step expediently increases the number of lines or polygon lines compared to the first forming step.
  • the first polygon geometry can be 6-fold rotationally symmetrical with respect to an axis of rotation.
  • the second polygon geometry can be 12-fold or 24-fold rotationally symmetrical with respect to an axis of rotation.
  • first edges produced in the first forming step are at least partially embossed in the second forming step.
  • first edges can have a burr or the like after the first forming step. Since the first edges produced in the first forming step are at least partially embossed in the second forming step, a polygonally shaped extractor recess can be produced with high geometric precision in a simple and cost-effective manner.
  • a 2-part or multi-part forming tool is expediently used to produce the polygon geometries.
  • a simply designed 2-, 3- or 4-part forming tool is sufficient.
  • multi-part forming tools, z. B. 8-, 9- or 10-piece forming tools can be used.
  • the starting body can be rotated axially by a predetermined angle relative to the forming tool after the first forming step and before the second forming step. i.e. either the starting body can be rotated relative to the fixed forming tool or the forming tool can be rotated relative to the fixed starting body. It is also possible, after the first forming step, to place the starting body in a second forming tool which, with regard to the polygon geometry, is rotated by a predetermined angle relative to the polygon geometry provided in the first forming tool. As a result, the edges of the second polygon geometry at least partially lie on the lines of the first polygon geometry.
  • first and the second polygon geometry with the same forming tool. i.e. Two identical forming tools can be used in succession along a forming section to produce the first and second polygon geometries. When converting a first starting body provided with the first polygon geometry, this is expediently rotated by a predetermined angle and then placed in the next forming tool to produce the second polygon geometry.
  • the first polygon geometry is produced by means of a first forming tool and the second polygon geometry is produced by means of a second forming tool that is different from the first forming tool.
  • a first polygon geometry that is 6-fold rotationally symmetrical with respect to an axis of rotation can be produced with the first forming tool.
  • a second polygonal geometry can be produced which, for example, is 12-fold rotationally symmetrical with respect to an axis of rotation.
  • the first polygon geometry can be overstated by the second polygon geometry such that the first edges of the first polygon geometry coincide with second edges of the second polygon geometry.
  • At least one tool can be inserted into the starting body and/or attached to the outer circumference of the starting body during the forming process.
  • the tool can be used to hold, index, punch, fill, emboss and/or shape the starting body. In this way, the dimensional accuracy in the manufacture of the base part can be improved.
  • the base part or the cartridge case can also be produced from a further starting body having the polygon geometry by means of a forming process. i.e. in this case the polygonal geometry of the extractor recess is predetermined by the further starting body.
  • the other starting body is shaped in such a way that a cylindrical outer circumference is formed, in which the extractor recess with the polygon geometry remains.
  • the opening for receiving the percussion cap can be made before, during or after the production of the polygon geometry in the case base.
  • the polygon geometry is expediently 2n-fold rotationally symmetrical with respect to an axis of rotation, where n is a number ⁇ 3.
  • the polygonal geometry of the extractor recess can, for example, be rotationally symmetrical about an axis of rotation 6, 8, 10, 12 times.
  • a method for producing a cartridge case is proposed, with a cylindrical case which has a case opening for receiving a propellant charge and a projectile, and a base part opposite the case opening with a case base for receiving a percussion cap, with the following steps: Production of a bottom part according to the method described above, and molding of the cylindrical sleeve onto the bottom part by means of extrusion.
  • the proposed method provides a cartridge case in which the base part and the case are formed in one piece.
  • cylindrical sleeve can also be formed by means of extrusion and deep-drawing.
  • At least one tool can be inserted into the base part and/or attached to the outer circumference of the base part.
  • the tool can be used to hold, index, punch, fill, emboss and/or shape the base part and/or the sleeve.
  • a cartridge case produced according to the above method can be produced exclusively by means of forming and can therefore be produced particularly efficiently.
  • the joining method can be, for example, a welding method or other suitable methods.
  • the starting body and/or the sleeve is made of a non-ferrous metal or steel.
  • the non-ferrous metal can be selected from the following group: brass, aluminum or aluminum alloy.
  • a starting body for producing a cartridge case instead of the starting body for producing a cartridge case, a starting body for producing the base part can also be provided and the base part can be produced therefrom using an analogous method.
  • Such a base part can be joined with a sleeve to form a cartridge case.
  • the starting body 1 shows a perspective view of a starting body 1 for the production of a cartridge case, which z. B. is made by extrusion or extrusion and deep drawing.
  • the starting body 1 has a cylindrical sleeve 2 which has a sleeve opening 3 and a sleeve base 4 opposite the sleeve opening 3 .
  • the case base 4 has an opening 5 for receiving a percussion cap (not shown here). With the broken line a bottom section is indicated.
  • the base section can be formed from a separate base part T in a multi-part design of the cartridge case.
  • the Figures 3 to 6 and 21 to 23 show the production of a first polygonal geometry P1 in the area of the sleeve base 4.
  • a first forming tool 6 here consists of two first mold halves 6a, 6b. As in particular from the Figures 5, 6 , 21 and 23 As can be seen, the first forming tool 6 has a relatively simple design. In the area of its first mold cavity K1, it has first projections 7 (see 23 ) for embossing a first polygon geometry P1 in the sleeve base 4.
  • the first polygon geometry P1 is a 6-fold rotationally symmetrical polygon geometry with respect to an axis of rotation.
  • a polygon geometry, as z. Tie Figures 5 and 6 shown in cross-section is formed by a closed stretch. The routes are limited by corners. The routes are just formed here.
  • the Figures 7, 8 and 13 show a first molded sleeve body F1, ie the starting body after the first forming step.
  • the first polygonal geometry P1 embossed in the sleeve base 4 has first polygonal surfaces 10 which are each delimited by first edges 11 in the circumferential direction.
  • the Figures 9 to 12 and 24 to 26 show the production of a second polygon geometry P2 in a second forming step.
  • the first molded sleeve body F1 is inserted into a second forming tool 8, which, like the first forming tool 6, can be formed from two second mold halves 8a, 8b.
  • the second forming tool 8 has a second mold cavity K2 with second projections 9 (see 26 ), which is 6-fold rotationally symmetrical with respect to an axis of rotation for the production of the second polygon geometry P2.
  • the second projections 9 are twisted by about 30 degrees relative to the first projections 7 .
  • the first molded sleeve body F1 is inserted into the second mold 8 in such a way that first edges 11 of the first polygonal geometry P1 are located approximately in the middle of a straight section of the second projections 9 .
  • first polygon geometry P1 is combined with a second polygon geometry P2 (see FIG 12 ) overstated.
  • the result is a second molded sleeve body F2 with a second polygonal geometry P2, which is 12 times rotationally symmetrical (see Figures 16 to 19 ).
  • the second polygon geometry P2 has second polygonal areas 12, which are delimited in the circumferential direction by second edges 13 (see 14 ).
  • further forming steps can take place to produce a polygon geometry.
  • the second shaped sleeve body F2 can be rotated by a predetermined angular amount relative to the second forming tool 8 and subsequently formed in a third forming step. Further forming steps can be carried out in a similar way.
  • FIG 13 shows the first molded sleeve body F1 with the first mold 6 open 14 shows in an analogous manner the second molded sleeve body F2 with the second molding tool 8 open.
  • a tool (not shown here) can be inserted into the sleeve 2 and/or the opening 5 when embossing the first polygonal geometry P1 and/or the second polygonal geometry P2.
  • a tool (not shown here) can also be applied to the outer circumference of the starting body or the sleeve shaped body. Undesirable deformation, in particular the formation of folds or the like, within the sleeve 2 and/or the opening 5 can thus be avoided.
  • the arrows indicate that the tool can have a holding, filling, embossing or shaping effect. In addition, it is also conceivable to have a piercing or indexing effect with the tool.
  • the third polygon geometry P3 can e.g. B. be produced by the first polygon geometry P1 is overstated with a second polygon geometry P2, which is not congruent with the first polygon geometry P1 and is also adjusted relative to the first polygon geometry P1 by a predetermined angle.

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  • Engineering & Computer Science (AREA)
  • General Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Packaging Of Annular Or Rod-Shaped Articles, Wearing Apparel, Cassettes, Or The Like (AREA)
  • Shaping Metal By Deep-Drawing, Or The Like (AREA)
  • Packaging For Recording Disks (AREA)
  • Forging (AREA)
  • Containers And Packaging Bodies Having A Special Means To Remove Contents (AREA)

Claims (31)

  1. Pièce de fond (T) qui est destinée à la fabrication d'une douille de cartouche et qui comporte un fond de douille (4) destiné à recevoir un culot d'allumage, un évidement d'extraction circonférentiel étant prévu sur la circonférence extérieure de la pièce de fond (T),
    caractérisée en ce que
    l'évidement d'extraction présente une géométrie polygonale (P1, P2, P3) qui est formée à partir d'une ligne polygonale fermée en coupe transversale.
  2. Pièce de fond (T) selon la revendication 1,
    au moins une partie des segments formant la ligne polygonale étant rectilignes.
  3. Pièce de fond (T) selon l'une des revendications précédentes,
    au moins une partie des segments formant la ligne polygonale étant incurvée.
  4. Pièce de fond (T) selon l'une des revendications précédentes,
    la ligne polygonale étant à symétrie de rotation par rapport à un axe de rotation.
  5. Pièce de fond (T) selon l'une des revendications précédentes,
    la ligne polygonale étant 2n fois à symétrie de rotation par rapport à un axe de rotation, n étant un nombre ≥ 3.
  6. Pièce de fond (T) selon l'une des revendications précédentes,
    le fond de cartouche (4) comportant un passage (5) destiné à recevoir le culot d'allumage.
  7. Douille de cartouche comprenant une douille cylindrique (2) qui comporte une ouverture de douille (3), destinée à recevoir une charge propulsive et un projectile, et une pièce de fond (T) selon l'une des revendications précédentes qui est opposée à l'ouverture de cartouche (3).
  8. Douille de cartouche selon la revendication 7,
    la douille cylindrique (2) et la pièce de fond (T) étant formées d'un seul tenant.
  9. Douille de cartouche selon la revendication 7 ou la revendication 8,
    la douille cylindrique (2) et la pièce de fond (T) étant reliées de manière fixe par une technique d'assemblage.
  10. Procédé de fabrication d'une douille de cartouche, comprenant une douille cylindrique (2) qui comporte une ouverture de douille (3), destinée à recevoir une charge propulsive et un projectile, ainsi qu'une pièce de fond (T) opposée à l'ouverture de douille (3) et comprenant un fond de douille (4) destiné à recevoir un culot d'allumage, le procédé comprenant les étapes suivantes :
    fournir un corps de départ (1) destiné à la fabrication de la douille de cartouche,
    réaliser un évidement d'extraction circonférentielle sur la circonférence extérieure du corps de départ (1) sous la forme d'une géométrie polygonale (P1, P2, P3) qui forme une ligne polygonale fermée en coupe transversale.
  11. Procédé de fabrication d'une pièce de fond (T) destinée à une douille de cartouche et comportant un fond de douille (4) destiné à recevoir un culot d'allumage, le procédé comprenant les étapes suivantes :
    fournir un corps de départ (1) destiné à la fabrication de la pièce de fond (T),
    réaliser un évidement d'extracteur circonférentiel sur la circonférence extérieure du corps de départ sous la forme d'une géométrie polygonale (P1, P2, P3) qui forme une ligne polygonale fermée en coupe transversale.
  12. Procédé selon la revendication 11,
    la géométrie polygonale (P1, P2, P3) étant réalisée à partir d'un corps de départ cylindrique (1) au moyen d'un procédé de formage et/ou d'un procédé d'usinage.
  13. Procédé selon la revendication 12,
    la géométrie polygonale (P1, P2, P3) étant estampée dans la circonférence extérieure du corps de départ (1) .
  14. Procédé selon la revendication 12 ou la revendication 13,
    la géométrie polygonale (P1, P2, P3) étant réalisée au moyen de plusieurs étapes de formage.
  15. Procédé selon la revendication 14,
    une première géométrie polygonale (P1) étant estampée dans la circonférence extérieure du corps de départ (1) dans une première étape de formage, et
    une deuxième géométrie polygonale (P2, P3), recouvrant la première géométrie polygonale (P1) au moins par portions, étant estampée dans la première géométrie polygonale (P1) dans une deuxième étape de formage.
  16. Procédé selon la revendication 15,
    des premiers bords (11), réalisés lors de la première étape de formage, étant au moins partiellement estampés par-dessus lors de la deuxième étape de formage.
  17. Procédé selon l'une des revendications 12 à 16,
    un outil de formage en deux parties ou plus étant utilisé pour réaliser les géométries polygonales (P1, P2, P3).
  18. Procédé selon l'une des revendications 15 à 17,
    le corps de départ (1) étant tourné axialement d'un angle spécifié par rapport à l'outil de formage après la première étape de formage et avant la deuxième étape de formage.
  19. Procédé selon l'une des revendications 15 à 18,
    la première géométrie polygonale (P1) étant réalisée au moyen d'un premier outil de formage et la deuxième géométrie polygonale (P2, P3) étant réalisée au moyen d'un deuxième outil de formage qui est différent du premier outil de formage.
  20. Procédé selon l'une des revendications 12 à 19,
    au moins un outil étant inséré dans le corps de départ (1) et/ou fixé à la circonférence extérieure du corps de départ (1) pendant le procédé de formage.
  21. Procédé selon la revendication 20,
    une action de maintien, d'indexage, de perforation, de remplissage, d'estampage et/ou de mise en forme étant menée sur le corps de départ (1) au moyen de l'outil.
  22. Procédé selon l'une des revendications 11 à 21,
    la géométrie polygonale (P1, P2, P3) étant réalisée à partir d'un corps de départ cylindrique par galetage.
  23. Procédé selon l'une des revendications 11 à 22,
    un passage (5) destiné à recevoir le culot d'amorçage étant ménagé dans le fond de douille (4) avant, pendant ou après la réalisation de la géométrie polygonale (P1, P2, P3) .
  24. Procédé selon l'une des revendications 11 à 23,
    la géométrie polygonale (P1, P2, P3) étant 2n fois à symétrie de rotation par rapport à un axe de rotation, n étant un nombre ≥ 3.
  25. Procédé de fabrication d'une douille de cartouche, comprenant une douille cylindrique (2) qui comporte une ouverture de douille (3), destinée à recevoir une charge propulsive et un projectile, et une pièce de fond (T) qui est opposée à l'ouverture de cartouche (3) et qui comprend un fond de douille (4) destiné à recevoir un culot d'allumage, le procédé comprenant les étapes suivantes :
    réaliser une pièce de fond (T) par un procédé selon l'une des revendications 11 à 24,
    former la douille (2) sur la pièce de fond (T) par extrusion.
  26. Procédé selon la revendication 25,
    le formage étant effectué par extrusion et emboutissage profond.
  27. Procédé selon la revendication 25 ou 26,
    avant le formage de la douille (2), au moins un outil étant inséré dans la pièce de fond (T) et/ou placé sur la circonférence extérieure de la pièce de fond (T).
  28. Procédé selon l'une des revendications 24 à 26,
    une action de maintien, d'indexage, de perforation, de perçage, de remplissage, d'estampage et/ou de mise en forme étant menée sur la pièce de fond et/ou la douille (2) au moyen de l'outil.
  29. Procédé de fabrication d'une douille de cartouche, comprenant une douille cylindrique (2) qui comporte une ouverture de douille (3), destinée à recevoir une charge propulsive et un projectile, et une pièce de fond (T) opposée à l'ouverture de douille (3) et comprenant un fond de douille (4) destinée à recevoir un culot d'allumage, le procédé comprenant les étapes suivantes :
    réaliser une pièce de fond (T) par un procédé selon l'une des revendications 11 à 24,
    fournir la douille (2), et
    relier la pièce de fond (T) à la douille (2) par un procédé d'assemblage.
  30. Procédé selon l'une des revendications 10 à 29,
    le corps de départ (1) et/ou la douille (2) étant en métal non ferreux ou en acier.
  31. Procédé selon la revendication 30,
    le métal non ferreux étant choisi dans le groupe suivant : le laiton, l'aluminium ou un alliage d'aluminium.
EP21733079.4A 2020-06-23 2021-06-09 Pièce de base destinée à produire un boîtier de cartouche et boîtier de cartouche, procédé de production d'une pièce de base pour un boîtier de cartouche, et procédé de production d'un boîtier de cartouche Active EP3986633B1 (fr)

Priority Applications (1)

Application Number Priority Date Filing Date Title
RS20230546A RS64361B1 (sr) 2020-06-23 2021-06-09 Bazni deo za proizvodnju čaure metka kao i čaura metka, postupak za proizvodnju baznog dela za čauru metka kao i postupak za proizvodnju čaure metka

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE102020003744.5A DE102020003744A1 (de) 2020-06-23 2020-06-23 Bodenteil zur Herstellung einer Patronenhülse sowie Patronenhülse, Verfahren zur Herstellung eines Bodenteils für eine Patronenhülse sowie Verfahren zur Herstellung einer Patronenhülse
PCT/EP2021/065502 WO2021259643A1 (fr) 2020-06-23 2021-06-09 Pièce de base destinée à produire un boîtier de cartouche et boîtier de cartouche, procédé de production d'une pièce de base pour un boîtier de cartouche, et procédé de production d'un boîtier de cartouche

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EP3986633A1 EP3986633A1 (fr) 2022-04-27
EP3986633C0 EP3986633C0 (fr) 2023-06-07
EP3986633B1 true EP3986633B1 (fr) 2023-06-07

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US (1) US20230124564A1 (fr)
EP (1) EP3986633B1 (fr)
AU (1) AU2021295229A1 (fr)
CA (1) CA3186714A1 (fr)
DE (1) DE102020003744A1 (fr)
ES (1) ES2952706T3 (fr)
RS (1) RS64361B1 (fr)
WO (1) WO2021259643A1 (fr)

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* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE700207C (de) * 1937-05-22 1940-12-16 Waffen Und Munitionsfabriken A Presse zum Formen von mit Ausziehernut versehenen Patronenhuelsenboeden
DE719783C (de) 1938-01-04 1942-04-16 William Prym Fa Verfahren zum Herstellen von Patronen- oder Kartuschhuelsen mit Auswerferrille
DE732984C (de) 1940-06-13 1943-03-17 Heinrich Krieghoff Verfahren zum spanlosen Herstellen der Auszieherringnut am Boden von staehlernen Patronenhuelsen
US2904873A (en) * 1956-09-12 1959-09-22 Henry F Hild Drawn steel cartridge case and its manufacture
NL169042C (nl) 1979-01-29 1982-06-01 Leer Koninklijke Emballage Werkwijze voor het vervaardigen van een bus met schroefdraad met veelhoekige flens.
US10041770B2 (en) 2010-11-10 2018-08-07 True Velocity, Inc. Metal injection molded ammunition cartridge
EP2690391A1 (fr) 2012-07-24 2014-01-29 METALLWERK ELISENHüTTE GmbH Procédé de fabrication d'une douille de cartouche avec rainure d'extraction ainsi que la douille de cartouche
US9016184B2 (en) 2012-09-27 2015-04-28 National Machinery Llc Precision forged cartridge case
EP2918962B1 (fr) * 2014-03-11 2018-04-18 Schuler Pressen GmbH Procédé de fabrication d'une douille
US10495430B2 (en) 2017-03-07 2019-12-03 National Machinery Llc Long cartridge case

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ES2952706T3 (es) 2023-11-03
CA3186714A1 (fr) 2021-12-30
US20230124564A1 (en) 2023-04-20
RS64361B1 (sr) 2023-08-31
WO2021259643A1 (fr) 2021-12-30
EP3986633C0 (fr) 2023-06-07
DE102020003744A1 (de) 2021-12-23
EP3986633A1 (fr) 2022-04-27
AU2021295229A1 (en) 2023-01-19

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